故障成因：沖煮頭堵塞、分水網咖啡油垢硬化；長期未清潔濾網導致壓力不足

Cause: Blocked group head, hardened coffee grease on shower screen, clogged filter basket

處理：拆洗分水網、濾網深度除油垢，嚴重堵塞帶來觀塘門店檢修

Solution: Disassemble & deep clean screen; severe blockage bring to Kwun Tong shop for inspection

故障成因：加熱管水垢堆積、溫控探頭老化、加熱絲損壞

Cause: Limescale buildup on heating tube, faulty temperature sensor, broken heating coil

處理：定期除水垢，溫控故障可預約上門維修

Solution: Regular descaling; sensor failure book onsite repair

故障成因：水泵老化、壓力開關故障、單向閥堵塞

Cause: Aging pump, defective pressure switch, clogged one-way valve

處理：泵體屬精密配件，建議帶機到觀塘門店專業檢測更換

Solution: Precision pump parts, professional inspection & replacement at Kwun Tong store

故障成因：蒸汽管路水垢、蒸汽閥堵塞、鍋爐積垢嚴重

Cause: Limescale in steam pipe, clogged steam valve, heavily scaled boiler

處理：每日用完放蒸汽沖洗，嚴重積垢需機器拆解除垢

Solution: Purge steam wand daily; heavy scale requires full machine disassembly descaling

故障成因：沖煮頭膠圈老化膨脹、分水器密封墊磨損

Cause: Aged group head rubber gasket, worn shower seal pad

處理：半年更換一次密封膠圈，本店備齊WPM Welhome原裝耗材

Solution: Replace gasket every 6 months, original WPM Welhome spare parts in stock

故障成因：過熱保護觸發、溫控器故障、線路接頭鬆動短路

Cause: Overheat protection triggered, broken thermostat, loose wiring short circuit

處理：禁止重複開機，立即聯絡師傅檢查電路板

Solution: Do not restart repeatedly, contact technician for circuit board inspection

故障成因：沖煮頭卡口積咖啡油垢、手柄膠圈變形

Cause: Coffee grease buildup on group head lugs, deformed portafilter gasket

處理：刷洗卡口油垢，膠圈變形直接更換耗材

Solution: Scrub grease from lugs, replace deformed gasket

故障成因：水位浮球水垢卡住、水位感應器氧化失效

Cause: Limescale stuck float ball, oxidized water level sensor failure

處理：拆卸水箱清洗浮球，感應器損壞門店更換配件

Solution: Disassemble tank & clean float; replace damaged sensor in shop

故障成因：水泵固定膠墊老化、鍋爐支架鬆動、內部水垢堆積

Cause: Aged pump rubber mount, loose boiler bracket, internal limescale buildup

處理：加固支架、更換減震膠墊、全面除水垢保養

Solution: Tighten brackets, replace shock pads, full descaling maintenance

故障成因：閥芯咖啡油脂黏住、彈簧老化失去彈性

Cause: Valve core stuck with coffee grease, aged weak spring

處理：拆解蒸汽閥清洗潤滑，彈簧損壞更換配件

Solution: Disassemble, clean & lubricate valve; replace broken spring parts