Bewinch G7i Petermann RB501

Suitable Households & Users

Coffee / tea / cocktail lovers: Commercial-grade solid crystal crescent ice at home — slow-melting, no dilution; iced Americano, milk tea, and fruit tea are easy to recreate.

Cold-drink / ice lovers: Near-0°C ice-point water (dual-mode cold water down to ~1°C); three crescent-ice sizes, crisp and satisfying — refreshing year-round.

Maternal & infant families / fitness users: Filters weakly alkaline low-sodium mineral water (pH ~7.4); low-sodium light-mineral design suits infants and fitness users; no scale inhibitors throughout.

Home / small business reception rooms: Non-plumbed countertop placement; visible/removable ice system stays clean. Suitable for low-frequency ice use in small reception and lounge areas (not recommended for high-volume professional beverage shops).

Why Choose G7i Petermann?

The G7i Petermann is Bewinch's G-series ice-drink flagship and the industry-first countertop "Moonice crescent ice" unit. One machine = premium purifier + ice maker + ice-water dispenser + kettle + temperature-controlled carafe. Crescent ice, ice-point water, and alkaline water all in one. The open ice-drink health system + dual UV auto-sterilization + 0-standby-water dual-mode self-clean stays clean and安心 even over long-term use.

Brand Background

Bewinch is the premium water purification brand of Lexy Electric Co., Ltd. (SSE-listed), adopting Lexy's award-winning design philosophy and advanced manufacturing and R&D capabilities.

Bewinch has established a global R&D center with nearly 1,000 engineers and designers, a doctoral workstation, and a CNAS-accredited national laboratory, holding nearly 50 authorized water purification patents. It operates 2,600+ chain stores and 1,300+ after-sales centers nationwide.

In 2021, Bewinch was recognized by CCTV as a "Great Nation Brand" — the inventor of countertop purifiers and a premium brand repeatedly ranking #1 across major e-commerce categories.

Product Positioning

The G7i Petermann is Bewinch's G-series ice-drink new model and the industry-first countertop "Moonice crescent ice" unit. Even commercial ice makers that can make crescent ice are rare and expensive; home units are virtually nonexistent. Bewinch first launched the "purification + crescent ice" G7i Petermann to bring chain-cafe ice-drink flavor home.

One Bewinch G7i Petermann = premium purifier + ice maker + ice-water dispenser + kettle + temperature-controlled carafe. Crescent ice, ice-point water, mineral alkaline water — refreshing drinks far beyond summer.

Scope: Daily home drinking, coffee/tea, DIY cocktails, small business reception/lounge areas with low-frequency ice use. Water output is mineral alkaline (weakly alkaline low-sodium mineral water), no scale inhibitors, Grade-1 water efficiency.

Core Selling Points

Ice-Making Tech: Moonice Crescent Ice Shape

Bewinch cross-industry launches Moonice crescent ice, using a flowing ice-making method with a high-priority ice-making program to ensure every G7i cube is crystal-clear, bubble-free, flavor-neutral, slow-melting, slow-cracking, and non-sticky over time.

Cafe/bubble-tea ice standards keep evolving; more famous brands now choose "crescent ice" — premium, slow-melting, high-cost, beautiful, flavor-preserving.

"Cross-industry first" means as of June 2026, Bewinch is the first brand in the countertop purification industry to launch a crescent-ice countertop purifier.

~10-Min Fast Ice · Near-0°C Ice-Point Water

In standard ice mode, crescent ice is ready in ~10 minutes. Ice-water experience upgrades from 8°C "chilled water" to 0°C "ice-point water"; ice and water use a dual-system linked temp control for double refreshment.

First startup takes ~25 minutes (compressor cold start); after stable running, standard cubes take ~11 minutes per cycle.

Data is from Bewinch internal lab. The 10-minute speed is the normal-cycle speed at standard room temperature in standard ice mode — not first-cycle speed — and varies with ambient temperature.

Three Ice Sizes for Multi-Scenario Use

G7i Petermann offers three crescent-ice sizes, supporting single-size and mixed storage:

Small: For small cocktail glasses, exquisite look; ~72 cubes full, ~5g each.

Standard: For regular coffee cups, better for iced coffee; ~60 cubes full, ~6g each.

Large: For big tumblers / fruit-tea pitchers, gatherings and picnics; ~48 cubes full, ~6.5g each.

You can switch sizes during single-size making to store mixed ice in the bin. Mode changes have a buffer — please wait, do not toggle rapidly.

Bernoulli Effect · Dual-Curve Sugar Diffusion

In cocktails, sugar often sinks, making the taste too strong/weak at different sips. G7i's crescent-ice concave-convex dual-curve design creates a Bernoulli effect: the concave face forms a high-flow micro-channel via pressure difference, lifting sugar from the bottom; the convex face diffuses it more evenly — reducing sugar buildup for a smoother taste.

Crescent ice also cools fast, melts slowly, tastes great, lasts longer, and does not interfere with flavor.

Open Ice-Drink Health System: Visible · Removable · Cleanable

Traditional ice purifiers are non-open systems — hidden ice tanks and ice chambers that cannot be cleaned, becoming mold hotbeds over years. Every G7i storage area follows visible/removable/cleanable design:

Removable purified pitcher: External lift-out antibacterial pitcher for large-water cooking/soup use.

Pull-out ice bin: Flexible ice access, easy maintenance, rinse-clean.

Open cold-water chamber: Open low-temp antibacterial chamber, visible and easy to clean — cleanliness at a glance.

Dual UV Auto-Circulating Sterilization

Both the purified pitcher and cold-water chamber have bottom UV lamps for auto-circulating sterilization, long-lastingly protecting water quality. Combined with the low-temp cooling chamber, ice drinks and purified water get dual health protection. Sterilization rate reaches 99% (based on E. coli removal); Listeria not detected.

Testing bodies: Guangzhou Institute of Microbiology for UV rates; SGS-CSTC Standards Technical Services (Shanghai) for Listeria.

Fresh-Water Cycle Self-Clean · 0 Standby Water

Upgraded "0 standby water" fresh-water cycle with auto/manual dual self-clean modes:

Smart self-clean: Every 12 hours idle, auto-draws cold-chamber water through filters back to the raw tank; every 24 hours idle, auto-draws both cold and purified chambers.

Manual self-clean: One-tap deep clean auto-draws both chambers and flushes filters.

During holidays, business trips, or any unattended period, the unit stays fresh and odor-free.

Water Quality: Mineral Alkaline Low-Sodium Water

Five-stage composite precision filtration produces weakly alkaline mineral water, sweet-tasting and ideal for daily brewing. Low-sodium, light-mineral design suits infants and fitness users. RA+ ore activation releases trace minerals with ion-antagonist balancing.

Testing bodies for pH/minerals and BPA-free: Nanjing Product Quality Supervision & Inspection Institute. Phosphate (scale inhibitor) not detected.

Accessories

The G7i Petermann is an all-in-one hot/cold/ice unit; the host integrates purification, heating, ice-making, and ice-water functions — no external expansion modules needed.

Do not pour any liquid directly into the ice bin or cold-water chamber — sugar can stick to lines and chambers, causing malfunction and hygiene issues. Use Bewinch original filters and accessories.

Core Parameters

Filter Information

Actual filter life depends on power-on hours, raw water quality, frequency, working pressure, inlet temperature, etc. The panel has filter-life indicators that smart-monitor and beep when due.

Energy & Environment

The G7i contains a compressor; place in a ventilated area, away from direct sunlight and heaters. Night ECO mode auto-dims the screen undisturbing sleep.

Unboxing & Package Contents

After unboxing, check the accessory list and inspect the unit for shipping damage. Remove protective film/packaging from the raw tank, pitcher, ice bin, etc.

If any accessory is missing or damaged, contact the store where you purchased. Air out the new unit for 12–24 hours before flushing.

New-Unit Flushing Guide

Before first use, follow these steps to activate filters and clean lines. ~30–40 minutes total.

Step 1: Unbox & Air Out

Unbox, remove accessories, open tank lid; wipe the ice bin and chamber lid with a clean damp soft cloth; rinse the pitcher interior with clean water; air in a cool, ventilated, dry place for 12–24 hours. Adjust airing time based on actual odor.

Step 2: Purify & Fill Cold Chamber

Fill the raw tank, plug in, purification starts; the screen shows the purification icon. Long-press "Ice-Water Switch" for 5 seconds; the cooling icon lights and ice-water turns on. The unit auto-fills the cold chamber from the pitcher. Wait ~10 minutes until the purification icon goes out.

Step 3: Cold-Water Drain (repeat 3 times)

Prepare a container larger than 3.5L that tolerates hot/cold temp swings. Long-press "Dispense/Stop" 5 seconds; the green dispense light and ambient light sync on, starting drain. It drains the cold chamber first, then the pitcher. When drain completes, the green light turns off and the unit stops automatically.

Because G7i is dual-pump/dual-chamber/dual-path, drain prioritizes the cold chamber; brief dry-pump sounds are normal.

Step 4: 45°C Warm-Water Flush (repeat 1–2 times)

After purification, tap 45/55°C, press "Dispense/Stop"; the red dispense light and ambient light come on; wait for auto-stop.

Step 5: 98°C Hot-Water Flush (repeat 1–2 times)

To select 98°C, tap the 85/98°C level twice; other steps same as 45°C flush. Beware of hot scalding. In some high-altitude areas, 98°C is not recommended to avoid steam/splatter.

Tips

1. The unit and filters may carry slight factory odor — complete flushing; more flushing = better taste.

2. Do not insert/remove the pitcher or raw tank while the pump is running — may damage the unit.

3. Each time the water-change icon prompts during flushing, pour out concentrated water and refill to max line.

4. When moving the unit, long-press "Dispense/Stop" 5 seconds to drain fully and unplug. Never lift by the cord.

First Ice-Making

After flushing and normal purification, ice-making is ready:

1. Long-press "Ice Switch" 5 seconds until a beep; release. The cooling icon lights; ice and ice-water both turn on.

2. After turning on ice, the unit does not cool immediately; ~3 minutes later the compressor starts.

3. First startup takes ~25 minutes (compressor cold start); after stable running, ~9–12 min/cycle.

4. When the cooling icon becomes solid and the ice icon flashes, it is making ice at the selected size (default standard); you can switch sizes.

After ice-making starts, the unit emits slight vibration — normal compressor running. Do not pull the ice bin or cut power during de-icing.

White Misty Cloudiness in New Tank?

This "cloudiness" is not impurities — it is dense tiny bubbles from air dissolved in the water. G7i uses RO reverse osmosis at 0.1-nanometer precision; the booster pump pressurizes water through the membrane, compressing air into bubbles — a normal physical phenomenon. Safe to drink. After multiple flushes, internal air decreases and the effect weakens.

Placement Requirements

The purifier must sit on a stable, firm, dry surface; do not place in direct sunlight or heavy oil-fume areas. Because it contains a compressor, do not place in long-term direct sun or near winter heaters — this affects appearance, cooling performance, and safety. Use municipal tap water at 5–35°C.

Dispensing: Ambient / Warm / Hot

1. Select water temperature: ambient / 45 / 55 / 65 / 75 / 85 / 98°C (tap 85/98°C twice for 98°C).

2. Select volume: 100 / 150 / 200 / 300 / 500 / 700 mL.

3. Press "Dispense/Stop" to start; the red dispense light and ambient light come on; auto-stops at the set volume.

4. Press again to stop manually.

Ice-Water Dispensing

1. Long-press "Ice-Water Switch" 5 seconds until a beep; release. Cooling icon lights; ice-water on.

2. When the ice-water icon is on, ice water is ready.

3. Tap the ice-water key; the icon flashes, the display shows current ice-water temp; press "Dispense/Stop".

4. The ice-blue dispense light and ambient light come on; dispense ice water; press again to stop.

If ice-making is already on, no need to re-enable ice-water — ice mode defaults to ice-water. To protect ice quality, when cooling temp is below 3°C, ice-water dispense is limited to ~300mL.

Ice Dispensing

1. Long-press "Ice Switch" 5 seconds until a beep; release. Cooling icon lights; ice and ice-water both on.

2. When cooling icon is solid and ice icon flashes, ice is being made; short-press to switch small/standard/large.

3. When not in de-icing, or the full-ice icon shows, you may pull the bin to check or take ice.

4. The scoop is in the top cover; lift the scoop lid to take it; return both scoop and bin after use.

Do not pull the bin or cut power during de-icing. Do not pour any liquid directly into the ice bin or cold chamber.

Smart Features: Four Cooling Modes (MODE-ICE 2.0)

Dual-ice mode: Ice + ice-water together; ice/water cycle cooling; colder ice water.

Ice-only mode: Only makes cubes; greatly improves cooling efficiency.

Ice-water mode: Only makes ice water; no dispense limit.

Smart eco mode: In dark environments, stops cooling for quieter operation.

Smart Child Lock

Long-press child lock 5 seconds until a beep and "LOC/ULO" shows at the raw-TDS position; release to toggle. When on, each dispense requires unlocking first; 10 seconds idle auto-relocks, or manually tap to lock. If you operate while locked, the child-lock key flashes 3 times and no water dispenses. Child lock defaults off after first power-on or power reboot.

ECO Night Eco Mode

ECO night eco is on by default. The light sensor detects ambient brightness; in darkness it identifies "night", shows ECO at the volume position, and the screen goes fully dark after idle. Tap any key to wake; when ambient light returns to normal, it auto-exits night eco. To manually toggle: long-press 200/300mL key 5 seconds; "LC/LO" at volume means off/on light-sensing.

Pitcher Ambient Light Ring

The pitcher base has an ambient light ring synced to functions, with 5 colors and 6 states:

Blue breathing flash = purifying; blue solid = ambient dispense; red solid = hot dispense; ice-blue solid = ice-water; green solid = drain; purple breathing flash = self-clean.

TDS 999 Alarm Toggle

When raw TDS peaks at 999, dispensing beeps and shows the "water change" icon. If raw water source cannot be changed, long-press the 65/75°C key 5 seconds until a beep to toggle the alarm. After cancelling, TDS 999 will not beep each dispense. This only applies to raw-source situations; do not repeatedly hold water in normal use, as it causes impurity buildup and abnormal TDS rise.

Self-Clean: Smart Self-Clean (Default On)

Smart clean is default on:

① Every 12 hours idle, auto-draws all cold-chamber water through filters back to raw tank and refills purified water.

② Every 24 hours idle, auto-draws both cold and purified chambers, re-filters back to raw tank and re-purifies.

Can be manually turned off: long-press 500/700mL key 5 seconds; "CL/OL" at volume means off/on smart clean. After off, if 72 hours pass without dispensing, the panel shows "Drain"; long-press "Dispense/Stop" to complete one drain cycle and resume.

Manual Deep Self-Clean

Long-press the self-clean key 5 seconds until a beep; release. The purple ambient light breathes; the unit starts self-clean, auto-drawing both chambers and re-purifying/filling. Tap the self-clean key mid-cycle to abort manually.

Tank Water Rules

1. Never pour hot water, ice water, or ice cubes into the tank — may deform it.

2. Never pour sewage, beverages, or non-tap/purified water into the tank — it severely shortens filter life, clogs lines/filters, or causes mold/odor.

3. While purifying, do not move the raw or purified tank — causes air trapping and leaks.

Temperature Levels & Cooling Modes

Four cooling modes (MODE-ICE 2.0): dual-ice / ice-only / ice-water / smart eco — on demand, no redundancy. The pitcher light ring syncs 6 states. During key ice-making, ice-water dispense is limited (~300mL in dual mode) — normal.

Filter Structure & Life

The G7i uses three independent filters; when one reaches end of life, replace only that one. The panel has filter-life indicators with smart monitoring and beeps when due.

Actual life depends on power-on hours after activation, local water quality, and dispensed volume.

Filter Replacement & Reset

1. Cut power to the whole unit.

2. Open the top cover; find the old filter; per the frame rotation marking, turn from "Lock" to "Unlock" and lift out.

3. Insert the new filter; per markings turn from "Unlock" to "Lock", confirm tight, replace the top cover.

4. Power on; within 60 seconds the unit auto-detects the filter and empty bars become full — replacement complete.

Notes

1. If the indicator does not change within 60 seconds after power-on, cut power, pull out the filter, and re-seat. If still not reset, contact the store where you purchased.

2. After installing a new filter, drain 3 times per the new-unit flushing guide to fully wet it.

3. Each filter chip can only reset its corresponding filter once; wait for the life-monitoring prompt before resetting, and carefully match the filter to reset.

Use Bewinch original filters; non-original accessories may cause substandard water quality or malfunction.

Daily Cleaning: Purified Tank / Cold Chamber / Raw Tank

For clean, healthy water, even with smart self-clean on, we recommend every 2–3 months wiping the purified tank, cold chamber, and raw tank with clean water and a lint-free non-woven cloth. If the raw tank has no scale, no citric acid descaler is needed. Never use citric acid descaler on the purified tank or cold chamber.

Ice Bin & Ice Chamber

G7i uses an open ice system; the ice bin and ice-chamber lid are removable. Periodically pull out the ice bin and rinse with clean water. The scoop is stored in the top-cover slot; return after use.

Body Care

Wipe daily with a soft dry cloth; avoid corrosive cleaners or hard pads. Place away from direct sunlight and heaters.

Waste Water

Why does the unit produce "waste water"?

RO reverse osmosis is essentially water separation at 0.1-nanometer precision, trapping heavy-metal ions, bacteria, and viruses. At the moment the membrane separates calcium/magnesium from water, those ions quickly crystallize on the membrane surface and must be flushed away, or the membrane clogs. Hence all RO units produce "waste water".

G7i's 4th-Gen Split Float-Magnetic Settling Tank

G7i's 4th-gen split tank adds a waste-water separator plate; physical isolation plus vortex convection reduces mixing of raw and waste water, reducing repeated filtration of concentrated water through filters, stabilizing waste ratio and extending filter life. Because G7i adds deep self-clean and the 4th-gen split tank, even with the same filters as some models, filter life is longer and rated total purified water is higher, reaching Grade-1 efficiency.

Waste water is not true "waste" — it is concentrated water after PP-cotton and activated-carbon filtration. Apart from higher salt, turbidity, color, and chlorine are all below tap water; reuse for mopping, watering, toilet flushing.

Deep Cleaning & Descaling

Every 2–3 months, wipe the purified tank, raw tank, cold chamber, and ice bin with clean water and lint-free cloth; rinse the pull-out ice bin; keep the scoop clean.

Self-Clean & Descaling Notes

0-standby-water self-clean: smart mode re-filters both chambers every 12h/24h; or long-press self-clean 5 seconds for manual deep clean (purple light breathing).

Descaling limits: no citric acid needed if the raw tank has no scale. Never use citric acid descaler on the purified tank or cold chamber — it may damage lines and the sterilization system. If you see condensation on the ice-bin pull handle, wipe with a clean soft cloth and check whether placement ambient has excessive temp swing.

Ice-Making Questions

Screen shows full ice but bin isn't full?

If the screen shows full ice but pulling the bin reveals it isn't full, it is usually random stacking during ice-drop that blocks the bin's infrared ice-level sensor. Gently shake the bin to level the ice, return it, and ice-making continues.

Condensation on the ice-bin handle during making?

The ice-bin pull handle is thin; during making, if ambient temp is high, condensation may form on the surface due to internal/external temp difference — a normal physical phenomenon. It usually does not occur at comfortable room temperature, only under specific temp swings. Wipe the exterior with a clean soft cloth when found. Place the unit on a suitable countertop, away from long-term sun or heaters.

Vibration noise after ice-making starts?

After cooling/ice-making starts, the unit emits slight vibration — normal compressor running. After turning on ice, the unit does not cool immediately; ~3 minutes later the compressor starts — normal program.

Why is ice-water dispense limited during making?

To protect ice quality, when cooling temp is below 3°C, ice-water dispense is limited to ~300mL. This is a protection mechanism that prioritizes ice efficiency during key making stages.

Water Quality Questions

White misty cloudiness in the new tank?

Normal physical phenomenon, not impurities. G7i uses RO reverse osmosis; the pump compresses air in water into dense bubbles — the "cloudiness". Safe to drink; after multiple flushes, internal air decreases and the effect weakens. Initial purified water may also show white foam in the container — it disappears on standing.

Does waste water returning to the tank affect quality?

No. G7i's 4th-gen split float-magnetic tank uses physical isolation plus vortex convection to greatly reduce returned waste water and filter wear. The unit has an independent purified tank that stores filtered water in advance, ensuring what you drink is safe. When raw-tank concentration reaches a level, the unit prompts water change; pour out waste and refill fresh each time.

What is mineral alkaline water?

G7i passes five-stage composite filtration; after RO core filtration, the #3 mineral composite filter (RA+ ore activation) releases trace minerals, producing weakly alkaline low-sodium mineral water. Weakly alkaline, clean and sweet, better tea; low-sodium light-mineral design suits infants and fitness users.

Operation Questions

Dry-pump sounds / no water on new-unit drain?

Normal, not a fault. G7i is dual-pump/dual-chamber/dual-path; new-unit drain flushes both cold and normal paths. The program drains the cold chamber first, with a buffer and brief dry-pump sounds as it ensures the front chamber empties. Then it drains the pitcher until the green drain light turns off — full drain complete. If the pitcher has water but dry-pumps for over 1 minute without continuing, contact the store where you purchased.

How to adjust ice size?

After ice-making starts, short-press the ice-size switch to toggle small/standard/large. During single-size making, you may switch to other sizes for mixed storage in the bin, but mode changes have a buffer — please wait, do not toggle rapidly to avoid program interference.

Screen dark in night eco?

This is normal ECO night eco behavior. The light sensor identifies darkness and enters night mode; after 1 minute idle the screen goes fully dark. Tap any key to wake. If unstable ambient light causes frequent auto on/off cooling, long-press the 200/300mL key 5 seconds to manually turn off the light sensor.

Water Rules

What water can go in the tank?

We recommend municipal tap water (5–35°C) or purified water. Never pour hot water, ice water, or ice cubes (may deform the tank). Never pour sewage, beverages, or non-tap/purified water — it severely shortens filter life, clogs lines/filters, or causes mold/odor.

Filter Questions

How often should filters be replaced?

#1 PP composite and #3 mineral composite every ~6–8 months; #2 RO membrane every ~2–3 years. Actual life depends on post-activation power-on hours, local TDS, and daily dispensed volume; the unit smart-prompts.

Why does purified TDS temporarily rise after a new filter?

New filter interfaces have food-grade lubricant; new activated-carbon filters release a small amount of carbon powder on first use, causing temporary TDS rise — normal. After 2–3 purification batches, values return to normal.

Filter life not reset after replacement?

If life does not reset after replacement, pull out and re-rotate the filter to ensure it twists to Lock. Confirm you are using Bewinch original filters — non-original ones cannot be recognized or auto-reset.

After-Sales Questions

How long is the G7i warranty?

G7i Petermann enjoys 3-year nationwide warranty; quality issues within 3 years are repaired free. It also includes 1-year replacement-only — within 1 year, non-human quality problems are resolved by direct replacement, no repair. For support, contact the store where you purchased.

Is first on-site installation needed? Is it charged?

G7i is a non-plumbed countertop purifier — plug in and add water; no professional installation. If you want first on-site commissioning, book via the Bewinch WeChat mini-program; first on-site installation is free (including accessories and drilling, except natural marble countertops).

Is no-reason return supported?

Yes. Within 7 days of receipt, if water/power have not been connected, it has not been installed/used, accessories are complete, and it is resalable, you may apply for no-reason return. If water/power have been connected, no-reason return does not apply — contact the store where you purchased for warranty service.

Ice & Cooling

How long does first ice take?

G7i Petermann's first ice takes ~25 minutes, then ~8–9 minutes per cycle. It produces crescent ice — solid, bubble-free, three adjustable sizes. Because the product contains a compressor cooling system, after transport bumping, let it stand 2 hours before using the ice maker.

What is crescent ice?

Crescent ice is solid, crystal-clear ice — unlike ordinary bullet ice, it melts slowly and does not stick, ideal for cold drinks, sparkling water, and cocktails.

How to clean the open ice chamber?

Periodically remove the ice-chamber lid and wipe the interior with a soft cloth dipped in warm water; when long-idling, drain the tank. Power off before cleaning; do not spray water directly on the motor.

What is "draw-back storage"?

After dispensing, draw-back draws residual water in lines back to the cold tank, avoiding spout drips and standing water, keeping the counter dry and water fresh.

How to activate cooling on first use?

On first use or after draining cold water, place a container >1.5L under the spout, long-press "Cold/Stop" ~5 seconds; the light ring flashes; when cold water flows it auto-stops — activation done. Flush 1–2 more times.

How long does cooling take?

Cool-water C1 takes ~30 minutes; ice-water C2 takes ~60 minutes. Cooling time extends at high room temp. When cooling completes the light ring is solid; after 1 minute idle the ring turns off; tap to wake.

Use & Care

Why is hot flow slower than ambient?

Based on the specific-heat formula: higher temperature needs more energy; at max power the unit reduces flow to reach target temperature — normal energy conservation. Higher temp = lower flow.

Why doesn't it boil to 100°C?

To avoid excessive steam pressure in the closed structure, heating is controlled between 90–100°C; output passes RO multi-stage filtration to direct-drink standard, so it is safe to drink without boiling.

How to flush before first use?

Unbox and air 12–24 hours; fill the raw tank and power on to purify; ambient drain 3–5 times; then 45°C flush 1–2 times and 98°C flush 1–2 times; beware of hot splashing.

Why does the unit produce waste water?

"Waste water" is concentrated water RO uses to flush membrane impurities; the pure-to-waste ratio is about 3:1 — a low ratio that protects RO membrane life. Waste water is cleaner than tap water (not drinkable); collect it for mopping or watering.

Do filters have a shelf life?

5 years; store unopened in a cool place.

Fault Codes (G7i-Specific)

When these codes appear, contact the store where you purchased to arrange temperature-sensor service.

Water leaking from bottom?

Symptom: Pooled water under or around the unit.

Cause: Spilled water; raw tank over max line; raw-tank bottom inlet/outlet valve loose or scaled; filter not seated.

Solution: ① Self-check for spills or over-level. ② Fill the tank, wipe the bottom, place on a flat surface outside the unit; if it still leaks, confirm tank leakage — check the bottom valve, rotate/press with a finger until it stops. ③ Power off, remove the purified tank, lift the top cover, check filters; remove all 3 and reseat. If unresolved, contact the store where you purchased.

No ice / abnormal ice making?

Symptom: Long time no ice after enabling, or abnormal ice quality.

Cause: First compressor cold start is long (~25 min normal); raw tank empty causing no purification; ice bin not seated; de-icing in progress.

Solution: ① First startup takes ~25 min; after stable running ~9–12 min/cycle. ② Check raw-tank level; ensure purification works. ③ Confirm the ice bin is seated (the not-in-position light stays on if not). ④ Do not pull the bin or cut power during de-icing. If still no ice, contact the store where you purchased.

Ice water not cold / too warm?

Symptom: After enabling ice water, output isn't cold enough.

Cause: Single ice-water mode is ~8°C (not near-ice-point); cooling just started and hasn't reached set temp; ambient too high.

Solution: ① Only dual-ice mode reaches near 0°C (~1°C); single ice-water is ~8°C. ② Wait for the cooling icon to become solid before dispensing ice water. ③ In summer high ambient, cooling load is large — be patient. If cooling does not start for a long time, contact the store where you purchased.

No water / slow dispensing?

Symptom: Press dispense but no water or slow flow.

Cause: Raw tank empty; purified tank not full; child lock on; pitcher not seated; filter clogged.

Solution: ① Check raw-tank level; add water. ② Wait for purification. ③ If child lock on, unlock first. ④ Confirm pitcher is seated (missing-pitcher light solid means not seated). ⑤ Check filter life; replace if due. If still no water, contact the store where you purchased.

Raw TDS shows 999 and alarm?

Symptom: Raw TDS shows 999, buzzer sounds, raw-shortage light on.

Cause: Local water poor or raw water not changed timely. Even after changing water, if purification hasn't run, it still shows 999.

Solution: ① Replace all raw water. ② After changing, dispense so the unit purifies; the raw probe detects new water quality and TDS drops. ③ If hard water cannot be changed, long-press 65/75°C 5 seconds to cancel the alarm; long-press again to restore.

Indicator unchanged after filter replacement?

Symptom: After installing a new filter and powering on, the life indicator does not reset within 60 seconds.

Cause: Filter not twisted tight, causing poor chip contact.

Solution: ① Power off, pull out the filter, turn from Lock to Unlock per markings, then reseat and turn to Lock. ② Power on and wait 60 seconds. ③ If still not reset, contact the store where you purchased. Note each chip resets only once.

Screen prompts "Drain"?

Symptom: Panel shows the "Drain" icon.

Cause: When smart self-clean is off and the unit has not dispensed for 72 hours, the panel shows "Drain" as a reminder.

Solution: Long-press "Dispense/Stop" 5 seconds to start drain; complete one drain cycle to resume. After long non-use, run a full drain flush before reuse.

Off-taste / odor in output?

Symptom: Plastic taste, disinfectant taste, or other odor.

Cause: New unit not fully flushed; filter due; tanks long-uncleaned; raw water quality worsened.

Solution: ① Complete full new-unit flushing (cold drain 3 + 45°C flush 1–2 + 98°C flush 1–2). ② Check filter life; replace if due. ③ Clean raw tank, purified tank, and ice bin. ④ If raw water suddenly worsened, replace all raw water.

Noise / abnormal sound?

Symptom: Noticeable noise during purification, ice-making, or heating.

Cause: Raw-tank empty causing pump dry-running; unit unsteady; filter not seated; normal compressor vibration.

Solution: ① Check raw-tank level; add water. ② Adjust placement to level. ③ Open the top cover, check filters. ④ Slight compressor vibration during ice/cooling is normal. If明显 abnormal noise or vibration, contact the store where you purchased.

White scale on raw-tank inner wall?

Symptom: White powdery crystals form on the raw-tank inner wall over time.

Cause: Regional water hardness causes scale on long use.

Solution: ① Take a cup of ~65°C hot water, add 5–10g food-grade citric acid, stir to dissolve. ② Fill the raw tank, pour in the citric acid solution. ③ Soak 30–60 minutes; wipe with a clean cotton cloth until scale detaches. ④ Pour out and rinse thoroughly. Never use citric acid on the purified tank or cold chamber.

New filter packaging swollen?

Symptom: New filter outer heat-seal is swollen/bulging.

Cause: Filters undergo air-tightness testing and are heat-sealed under pressure to preserve condition and filtration speed.

Solution: Normal; no need to worry. As long as the seal is intact, it is safe to use.

Slow ice making?

Symptom: Ice making明显 slower than expected.

Cause: First cooling startup long; ambient too high; intake/exhaust blocked.

Solution: ① First cold-start is long; after stable running ~9–12 min/cycle, and subsequent cycles speed up. ② Use the unit below 32°C ambient. ③ Ensure at least 10cm clearance around the rear exhaust and left intake. If slow persists, contact the store where you purchased.

Ice cubes too small or slushy?

Symptom: Made cubes are too small or slushy.

Cause: Long time without taking ice causing melt; ambient too high.

Solution: ① Remove all ice and re-make. ② Use below 32°C ambient. ③ Three ice sizes are adjustable as needed.

Ice not dropping when taking ice?

Symptom: Press take-ice but cubes don't drop from the outlet.

Cause: Ice in the chamber frozen together; frozen cubes stuck at the outlet.

Solution: ① Open the chamber, break apart frozen cubes. ② Manually remove stuck cubes. ③ If long no-ice, empty the chamber to avoid sticking. If frequent jams, contact the store where you purchased.

Shows full ice but chamber empty?

Symptom: Full-ice indicator solid but no cubes in the chamber.

Cause: Ice-full sensor abnormal or ice-drop mechanism fault.

Solution: Contact official after-sales to inspect the ice-full sensor and drop mechanism; may need replacement or repair.

Cannot take cold water?

Symptom: Tap the cold-water key but no flow.

Cause: ① Unit power switch off. ② Cooling module running to lower temp. ③ Ice-water chamber empty. ④ Purified-tank level below one bar.

Solution: ① Turn on the unit power switch. ② Wait 10 minutes then retry. ③ Wait 5 minutes for refill then retry. ④ Wait until purified-tank level reaches one bar to auto-fill the cold tank.

Ice maker leaking?

Symptom: Water leaking from the ice-maker bottom or around.

Cause: ① Ice maker not fully seated/sealed. ② After manual drain, the drain plug not reinstalled.

Solution: ① Install the ice maker until its top is nearly flush with the host top. ② Reinstall the drain plug.

Cold/ice module light ring not on?

Symptom: Ice-water or ice-module light ring not lighting.

Cause: If no operation for over 1 minute, the light ring auto-off enters eco mode.

Solution: Tap the panel's "Cold/Stop" touch button to wake it.

H01 prompt?

Symptom: Screen shows H01.

Cause: ≥3 days without hot-water dispense; system reminds to drain.

Solution: Press the panel "Help" key to enter "Smart Functions", select "Drain", long-press "Dispense/Stop" 5 seconds to drain.

New screen shows 0403, no purification?

Symptom: New screen shows raw 04 / purified 03, unit not purifying.

Cause: Production-line default; before first water-run, new units default to raw 04 / purified 03 — not a fault, just no water has actually run through lines yet.

Solution: ① If the raw-water-change light is on with 0403: check whether the raw-tank float is missing; reseat the tank several times. ② If the raw-change light is off but 0403 persists: may be booster-pump or waste-solenoid fault — contact official after-sales.

Slow / low-volume dispensing?

Symptom: Output noticeably reduced or dispensing interrupted.

Cause: Filter beyond life or clogged; raw tank empty; purified flow very low.

Solution: ① Replace the filter. ② Add standard municipal tap water. ③ If slow persists after filter replacement, may be diaphragm/booster-pump fault — contact official after-sales.

Tank has water but shows shortage / raw replacement?

Symptom: Raw tank has water but the unit still prompts raw replacement or shows shortage.

Cause: ① Tank float not seated or weak magnetism. ② Poor tank contact. ③ TDS 999 alarm.

Solution: ① Fill the tank to max, check the float is seated and floats in full water. ② Reseat the tank. ③ At TDS 999, after changing water, dispense so the unit purifies; the raw probe detects new water quality and TDS drops.

Steam / splatter when dispensing hot water?

Symptom: Steam or hot-water splatter when dispensing high-temperature water.

Cause: At high altitude, boiling point drops; large steam volume in the heating tube exits with the water.

Solution: In high-altitude areas, beware of hot splashing on first use; hold the container close to the spout. Some high-altitude areas may not be able to use the max-temperature level normally.

Ambient no water, 45°C dispenses scalding?

Symptom: Ambient level no water, but 45°C level dispenses scalding water.

Cause: Temp sensor or heating-control system abnormal.

Solution: This is a quality issue — contact the store where you purchased for replacement or repair.

Raw tank leaking?

Symptom: Water seeping from the raw-tank bottom.

Cause: Raw-tank bottom valve loose or not seated.

Solution: Reinstall the bottom valve, ensure tight. Contact the store where you purchased for an operation video.

Leak / noise after new filter install?

Symptom: Leak and noise after filter replacement/installation.

Cause: Filter not twisted tight or seated; using an old filter may cause poor sealing.

Solution: Re-tighten the filter, ensure seated. We recommend using a new filter; old filters, while bars may recover, have degraded purification efficiency and speed.

Continuous beeping during dispensing?

Symptom: Screen normal but unit beeps continuously during dispensing.

Cause: Heating element or diaphragm pump issue.

Solution: Contact official after-sales to inspect the heating element or diaphragm pump.

Touch unresponsive / keys dead?

Symptom: Tap the screen with no response; all keys unresponsive.

Cause: Screen assembly fault.

Solution: If all keys are dead, the screen assembly needs replacement — contact official after-sales.

Display abnormal?

Symptom: Display abnormal — temp icons flashing, screen black, etc.

Cause: Display control module abnormal.

Solution: Contact official after-sales to replace the display assembly.

TDS still 999 after water change?

Symptom: New unit shows 999 for days; repeated water changes and drains don't help.

Cause: TDS probe scaled.

Solution: For a new unit, contact after-sales for exchange, or contact the store where you purchased for inspection.

Raw TDS lower than purified TDS?

Symptom: Raw TDS is lower than purified TDS.

Cause: ① You poured purified water into the raw tank, so raw TDS is naturally low. ② New unit not fully flushed; internal lines not clean. ③ When raw water is too pure, RO produces little waste, flushing the purified probe less.

Solution: ① Use municipal tap water as raw. ② Complete full new-unit flushing. ③ Use higher-TDS tap water for a week; raw value will exceed purified value — normal, no impact.

Strong odor on new unit?

Symptom: Despite airing and repeated boiling, the new unit still smells strongly.

Cause: New-unit filters and lines may carry slight odor.

Solution: Open the top cover, air the purified tank for 24 hours. If odor persists, brew citric acid and pour it in to resolve.

Air-trapping leak after moving tank during purification?

Symptom: After moving raw/purified tanks during purification, air trapping and leaks occur.

Cause: Moving tanks while purifying lets air into the water path.

Solution: Do not move raw/purified tanks while purifying. Wait until purification completes or power off (and until water-change prompt) before moving tanks.

Insects entering the unit?

Symptom: Insects found inside or at the bottom of the unit.

Cause: The base has drainage holes (to prevent internal leakage safety risks); in insect-heavy environments they may enter.

Solution: ① Place the unit in a clean, ventilated, dry area; clean regularly. ② Place 1–2 non-toxic insect-repellent sachets around each of the four feet, flat and stable. Internal water path is fully sealed and does not affect water quality.

Error Code Quick Reference

Helpful Tips & Self-Service Methods

Slow/no/intermittent purification — suspected "air trapping"

Symptom: Slow purification, no flow, or intermittent dispensing — suspected air trapping.

Solution: ① Power on and wait for purification to start (pulsing "thump-thump" sound); after purification completes, open the top cover and pull out a filter. ② Use a chopstick to gently poke the holes at the filter bottom to release pressure/air (note: if the chopstick meets resistance, air trapping is confirmed; water may spray from the filter bottom — never point the bottom toward your face). ③ Repeat for each filter, then screw filters back, wipe the table, and close the cover.

Off-odor / plastic taste after new unit or water change

Symptom: Off-odor or plastic taste persists despite repeated flushing.

Solution: ① Open the top cover and purified-tank lid, air for 24 hours. ② If odor remains, brew edible-grade citric acid, pour into the purified tank to soak, then drain and flush 2–3 times. ③ Ensure you complete the full new-unit flushing (cold drain 3–5 + warm flush 1–2).

Spout drips a few drops after removing the cup

Symptom: Spout drips a few drops after the cup is removed.

Solution: On a new unit, dripping is usually residual carbon powder or debris in the water path; drain a few more times (3–5) to normalize. If dripping continues after a period, contact the store where you purchased.

White floating particles in dispensed water

Symptom: White floating particles in dispensed water.

Solution: On a new unit or after a filter change, residual food-grade lubricant in lines may flow out — normal. After a few more drains (5–10 cups), particles disappear naturally. Harmless; safe to drink.

Screen numbers jumping, touch unreliable

Symptom: Screen numbers jumping, touch unreliable, intermittent.

Solution: ① First wipe water off the screen with a dry cloth — capacitive touch triggers误动作 when wet. ② Check for unstable voltage; try a dedicated outlet. ③ If the screen still frequently jumps/flashes, the touch-film assembly may be faulty — contact after-sales.

Press dispense but no flow, display normal

Symptom: Press dispense but no water; display looks normal.

Solution: ① Check the top cover is pressed down firmly (an unseated cover triggers safety lockout). ② Power off for 1 minute, then restart. ③ Confirm the raw tank has water and the float floats normally. ④ If none work, the diaphragm pump may be a hardware fault — contact after-sales.

Does the purified tank need regular cleaning?

Symptom: Does the purified tank need regular cleaning? How?

Solution: We recommend every 2–3 months: ① Remove the raw tank; open the top cover and purified-tank lid. ② Long-press "Dispense/Stop" 5 seconds to drain; auto-stops when empty. ③ Wipe inner walls with a clean lint-free non-woven cloth. ④ Refill the raw tank and wait for auto-purification. ⑤ Long-press to drain 2–3 more times.

Intermittent hot flow with steam

Symptom: Intermittent hot flow with accompanying steam.

Solution: With swirl-flow instant-heat technology, water passes through the heating tube and instantly heats to near 100°C, generating large steam — the flow is finer than ambient and may fluctuate. Normal. In high-altitude areas, lower boiling point causes similar effects; try 85°C.

Insects found at bottom/around the unit

Symptom: Insects found at the bottom or around the unit.

Solution: The base has drainage holes for safety; in insect-heavy environments they may enter. ① Place the unit in a clean, ventilated, dry area; clean regularly. ② Place 1–2 non-toxic insect-repellent sachets around each of the four feet. Internal water path is fully sealed and does not affect water quality.

Plastic taste after flushing — deep deodorizing

Symptom: Plastic taste remains after new-unit flushing; how to deeply deodorize?

Solution: New-unit water-contact plastic parts are factory deodorized, but sealed packaging may leave a slight plastic taste — normal. Standard method: air the purified tank for 12–24 hours, then complete flushing. If odor remains, use the "dish-soap method": dilute food-grade dish soap, pour into the purified tank and circulate/flush, then rinse repeatedly with clean water 3–5 times. See official video tutorial.

White scale/crystals on raw-tank inner wall

Symptom: White scale/crystals on the raw-tank inner wall.

Solution: After long use, white powdery scale may appear — normal. Descaling: ① Take a cup of ~65°C hot water, add 5–10g food-grade citric acid, stir to dissolve. ② Fill the raw tank, pour in the citric acid solution. ③ Soak 30–60 minutes. ④ Wipe with a clean cotton cloth until scale detaches. ⑤ Pour out and rinse thoroughly.

New filter outer packaging swollen

Symptom: Newly received filter outer packaging is swollen/bulging.

Solution: This is normal. Filters undergo air-tightness testing before leaving the factory and are heat-sealed under pressure to preserve condition and filtration — hence the packaging may bulge. As long as the seal is intact, it is safe. Bewinch uses double heat-sealed packaging to protect filters during shipping.

Loud purification noise on first use

Symptom: On first use, purification sound is very loud.

Solution: This is normal. New-unit filters, booster pump, and internal lines contain lots of air; the pump compresses air and produces louder noise. After repeated purify-drain cycles fully wet internal lines, noise gradually decreases. If still loud, check the unit sits on a flat surface; a soft flat pad underneath reduces resonance.

Black powder in raw/purified tank on first water run

Symptom: Black powder appears in the raw or purified tank on first water run.

Solution: This is normal. Activated-carbon filters are sintered from carbon powder plus food-grade binder; new filters release a small amount of carbon powder on first use — non-toxic. For black powder in the raw tank, flush the new unit 3–5 times. In the purified tank, rinse with tap water, wipe with a clean cloth, then drain-flush a few times.

Cloudy water with green/brown suspended matter

Symptom: Water in the raw tank looks cloudy with green or brown suspended matter.

Solution: Usually algae spores or pipe sediment from aging tap-water networks, more noticeable in summer. The raw tank holds unfiltered tap water; cloudiness does not affect output — after RO membrane filtration (0.0001 micron), microbes, bacteria, and impurities are all removed, and output is safe for direct drinking. Clean the raw tank regularly.

Water leaking from bottom/around the unit

Symptom: Water leaking from the bottom or around the unit.

Solution: ① Immediately close the inlet valve (if any), stop water supply, and cut power. ② Self-check: check for spills, and whether the raw tank exceeds MAX. ③ Open the top cover, check the three filters are seated; remove and reseat each. ④ Wipe water off the table and unit bottom, then power on and observe. If leaking recurs, contact the store where you purchased.

What is TDS?

Symptom: What is TDS? Why do TDS numbers differ each time?

Solution: TDS (total dissolved solids) is the total of dissolved substances in water; higher numbers mean more minerals and impurities. TDS is determined by the raw water you add, not a fixed value. Internal pipes and filters retain some old water; after mixing with new water, the reading may be slightly higher than tap water. After changing raw water, dispense a cup so the unit purifies — the TDS probe updates to the new water quality.

Raw-tank leftover water getting more concentrated — what's "waste water"?

Symptom: Raw-tank leftover water gets more concentrated — what is waste water about?

Solution: RO membrane precision reaches 0.1 nanometer; to avoid impurity buildup clogging membrane pores, some water flushes the membrane surface — this flush water returns to the raw tank as "waste". Waste water is only slightly higher in salt than tap water, not sewage. Pour out all leftover raw water and refill fresh each time; do not reuse waste water.

Fixed-volume dispensing inaccurate

Symptom: Fixed-volume dispensing is inaccurate; measuring cup reads slightly less or more.

Solution: Residual water in the unit's pipes means fixed-volume dispensing has some normal error. Hot-water volume error may be slightly larger because flow speed changes with temperature. We recommend using an accurately marked measuring cup/bottle — within normal error range.

Vertical line/mark on the unit shell

Symptom: A vertical line/mark on the unit shell.

Solution: This is a natural weld line formed when plastic fuses during injection molding — an industry-wide phenomenon that does not affect use or appearance. We continuously improve the process to minimize weld lines.

How is filter-life indicator calculated?

Symptom: How is the filter-life indicator calculated? Must I replace when due?

Solution: Filter life is computed from three dimensions: ① Power-on time (like a food shelf life — decays over time even unused after wetting); ② Raw TDS change (poorer water = faster consumption); ③ Cumulative dispensed volume (more dispensing = faster consumption). The life reminder is a suggested cycle, not a hard deadline, but do not wait until the filter is fully clogged — otherwise the booster pump may overload or pipes may rupture.

G-Series Models Currently Sold

G7i Petermann is the newly launched ice-making model in the G7 series. Each G7 model has a different positioning; choose by need:

The main page showcases G7i Petermann; please distinguish models when purchasing. G7i health license: (Su) Wei Shui Zi (2026) No. 3205-0063.

G7i Petermann vs G7s Wanxiang Slush Edition

G7i Petermann focuses on commercial-grade crescent ice, for users wanting crystal slow-melt crescent ice and iced coffee/tea/cocktails. G7s Wanxiang focuses on modular multi-function, for users wanting slush, tea brewing, and diverse drinks.

G7 Series vs G3 Series

As G-series countertop purifiers, G7 is significantly upgraded over G3 in water taste, main functions, filtration performance, instant heat/cold, temp levels, tank structure, and after-sales. Choose by need.

Home & Small-Business Use

Bewinch has learned from chain commercial experience; G7i gives back to small commercial venues at lower machine cost, meeting some commercial needs — providing brighter ice for small reception rooms and lounges with low-frequency ice use.

Because this unit prioritizes home configuration, it does not yet support high-frequency commercial ice venues; not recommended for professional beverage shops. High-frequency overuse may cause machine malfunction and affect warranty.

How to Choose Among the Four G7 Models? (G7s / G7i / G7 / G7c)

The G7 series is Bewinch's countertop purification line; all output alkaline/low-sodium light-mineral water and enjoy 3-year nationwide warranty (incl. 1-year replacement). Key differences:

Buying advice: For home crescent ice and near-0°C ice-point water, choose G7i Petermann. For modular expansion and wellness brewing, choose G7s Wanxiang. For classic instant-heat direct drinking, choose G7 Heidelberg. For the classic G7 experience plus 6-minute instant ice water, choose G7c.

After-Sales Policy

As the inventor of countertop purifiers, Bewinch is a premium brand repeatedly ranking #1 across major e-commerce categories. G7i Petermann enjoys 3-year nationwide warranty, with replacement-only in year 1.

Contact the Store Where You Purchased

National Service Hotline

400-828-0808

Online Support

JD Bewinch Official Flagship Store, Tmall Bewinch Official Flagship Store, and the Bewinch WeChat mini-program — all reachable to contact the store where you purchased.

Please purchase Bewinch only through official channels; beware of refurbished units, demo units, and filters sold at low prices through special channels.

Safety Precautions

• Read the user manual carefully before use and keep it for future reference.
• Children must operate under adult guidance to avoid scalding.
• Do not disassemble, repair, or modify the unit yourself, to prevent malfunction or danger.
• Only connect the power cord to a supply matching the rated voltage on the plate.
• Do not use a damaged power cord or plug, or a loose outlet.
• Do not lift the unit by pulling the power cord.
• Use municipal tap water as raw water (5°C–35°C).
• Because it contains a compressor, do not place the unit in long-term direct sun or near heaters.
• Place the unit steadily and keep water out.
• Do not immerse the whole unit in water or spray-wash.
• Replace filters on time; interval varies with water usage and quality.
• After installing a new filter, drain 3 times per the new-unit flushing method to fully wet it.
• Do not pour any liquid directly into the ice bin or cold chamber — sugar may stick to lines and chambers.
• Keep surroundings clean; clean the storage tank, cold chamber, and ice bin every 2–3 months.
• Never use citric acid descaler on the purified tank or cold chamber.
• When cleaning, do not use corrosive solutions, to avoid fading or corrosion.
• Do not place containers of water, medicine, food, or small metal objects on top.
• If water enters the unit, or the unit makes abnormal noise or leaks, unplug immediately and contact the store where you purchased.
• Non-genuine filters may lack hygiene/safety assurance, degraded filtration, and poor sealing — potentially causing abnormal water quality, safety risks, and shortened machine life.

Manual & Video Tutorials

Product Manual — PDF format · complete instructions · new-unit flushing and ice-making guide.

Contact Support

Video Tutorials

• New-unit flushing tutorial
• Dispensing & ice-taking tutorial
• Self-clean tutorial
• Filter replacement tutorial
• Eco mode tutorial