紅磡 WPM Welhome 咖啡機沖煮完持續滴水｜單向閥故障維修
作者：香港駿弘電器維修公司
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发表时间：2026-07-11 22:04:49
????特大喜訊｜咖啡機觀塘門店自提檢查費只須HK$300｜紅磡WPM Welhome咖啡機滴水單向閥專業維修
????Big Promotion｜Coffee Machine Inspection Only HK$300 at Kwun Tong Store | WPM Welhome Coffee Machine Leak Repair Hung Hom
WPM Welhome咖啡機專業維修｜紅磡滴水單向閥故障根治
Professional WPM Welhome Coffee Machine Repair | Fix Hung Hom Leaking One-way Valve
觀塘門店自提檢查僅HK$300，維修全港所有進口、國產半自動/全自動/商用咖啡機，資深技師上門維修，價格透明無隱藏收費
Walk-in inspection at Kwun Tong shop only HK$300. Repair all domestic & commercial coffee machines across HK, transparent pricing, experienced technicians
20 Common WPM Welhome Coffee Machine Faults & Maintenance Tips
No.80 Hung Hom WPM Welhome machine dripping after brewing | One-way valve failure repair (Main Service)
Common Fault List
1. Continuous dripping after brewing (One-way valve broken)
Frequent issue in Hung Hom. Valve seal aging by coffee grease, replace valve core to fix, no full brew head replacement needed.
2. No water / weak flow from brew head
Blocked shower screen & limescale buildup, full descaling & screen cleaning required.
3. Slow heating, unstable temperature
Thick limescale on boiler, faulty thermostat, worn heating element.
4. Low pump pressure, no crema
Worn pump, faulty pressure regulator, water leakage.
5. No steam / weak steam from wand
Clogged steam pipe, boiler limescale, leaking steam seal.
6. Water leak under machine
Aged pipe seals, boiler joint leak, broken water tank gasket.
7. No power, machine won’t turn on
Blown fuse, faulty mainboard, broken power switch.
8. Alarm light flashing after power on
Faulty water level sensor, temp sensor error, low water protection.
9. Portafilter loose, cannot lock
Worn brew head lock, deformed group gasket.
10. Sour / bitter unstable coffee taste
Inaccurate temperature control, old coffee grease residue.
10 Daily Maintenance Tips
11. Clean shower screen & group gasket every 3 days
Residual coffee clogs pipes & damages one-way valve quickly.
12. Full machine descaling every 2 months
Hard water in HK causes fast limescale, reduces heating efficiency.
13. Wipe steam wand & purge steam after each use
Dried milk clogs steam pipes & weakens steam output.
14. Disassemble & clean portafilter weekly
Grease buildup creates uneven extraction & odd coffee flavour.
15. Empty boiler water if machine idle long term
Stagnant water causes pipe rust & water leakage.
16. Use filtered water to slow limescale
Tap water impurities wear boiler & pump faster.
17. Avoid corrosive cleaner on rubber seals
Strong acid hardens rubber seals & causes water leak.
18. Full disassemble maintenance every 6 months
Deep clean internal pipes, pump & valve to prevent sudden breakdown.
19. Inspect water tank gasket regularly
Aged tank gasket is top cause of bottom leakage.
20. Place machine on stable flat surface
Vibration loosens boiler joints leading to hidden slow leaks.
All Coffee Machine Brands We Repair
Fully automatic built-in, semi-auto home, commercial cafe, capsule, local budget & temperature storage equipment
1. High-end Built-in Fully Automatic
- Miele 美諾
- Jura 優瑞
- Delonghi 德龍
- Saeco 喜客
- Philips 飛利浦
- Bosch 博世
- Siemens 西門子
- AEG
- Liebherr 利勃海爾
- De Dietrich 帝澤
- Smeg 斯麥格
- Gaggenau 嘉格納
2. Semi-Auto Home Espresso (WPM Welhome Range)
- WPM Welhome（主力維修）
- Breville 鉑富
- Rocket 火箭
- Gaggia 加吉亞
- Bezzera 貝澤拉
- ECM / Profitec / Quick Mill
- Ascaso 艾斯卡索
- La Pavoni 拉帕沃尼
- Lelit 萊利特
- Gemilai 格米萊
- Caffè Casa 卡法
- Nuova Simonelli Musica
3. Commercial Cafe Coffee Machines
Premium Commercial: La Marzocco, Slayer, Kees, Synesso
Mid-tier Chain: Nuova Simonelli, Faema, Wega, Rancilio, Cimbali etc.
4. Capsule Coffee Machines
- Nespresso 奈斯派索
- Dolce Gusto 多趣酷思
- Lavazza A Modo Mio
- Illy 意利
- Tassimo 達斯莫
5. Drip Filter & Office Coffee Maker
- Melitta、KitchenAid、Panasonic、Bialetti、Bodum
- Hamilton Beach、Cuisinart、Mr.Coffee、Zojirushi
6. Local Chinese Coffee Machine Brands
- WPM Welhome、Gemilai、Caffè Casa、Barsetto、HiBREW
- 蘇泊尔、小熊、摩飛、柏翠、SAIARA
7. Cold Brew, Grinder & Temp Storage Equipment
- Marco、Fetco
- Mahlkönig、Eureka
- Raching、Vinvautz
- S.T.Dupont、Oasis
Professional Repair Tools
- Pressure & temperature tester
- Valve & pump disassembly tool set
- Full stock of gaskets & shower screens
- Industrial descaling & ultrasonic cleaner
- Circuit board tester & multimeter
Standard Repair Service Flow
1
Quote Inquiry: Send fault photos/videos via WhatsApp
Quick fault diagnosis & price estimate
2
Two service options: Walk-in shop / On-site repair
Walk-in inspection at Kwun Tong only HK$300
3
Full disassembly & detailed fault inspection
4
Confirm repair price before parts replacement
5
Full descaling & steam/extraction test
6
Machine handover + basic maintenance guide
Genuine Customer Reviews
My WPM Welhome machine in Hung Hom kept dripping after brewing. Brought to Kwun Tong shop, inspection only HK$300, valve replaced same day, no more leaks, fair price!
Mr. Chan, Hung Hom | WPM Welhome One-way Valve Repair
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