香港專業咖啡機維修｜WPM Welhome散熱故障｜全品牌上門維修 Hong Kong Professional Coffee Machine Repair | WPM Welhome Overheat Shutdown Fix | All Brands Home Service

WPM Welhome咖啡機20大常見故障 20 Common WPM Welhome Coffee Machine Faults

1. 開機運行一段時間自動熄機、斷電停機：散熱風扇/溫控故障 Auto shutdown after running: Cooling fan / temperature sensor failure
2. 加熱慢、出水溫度不足，咖啡偏酸 Slow heating, low water temperature, sour coffee
3. 沖煮頭出水細、不出水、斷續滴水 Weak / no water / intermittent dripping from brew head
4. 水泵噪音震動大、內部異響 Loud pump vibration & abnormal internal noise
5. 蒸汽棒無蒸汽、奶泡無法製作 No steam from wand, cannot foam milk
6. 機身底部漏水、沖煮頭滲水 Water leakage at machine base & brew head
7. 面板按鍵失靈、屏幕亂碼 Unresponsive buttons, garbled display screen
8. 壓力表無壓力、萃取壓力不足 Zero pressure gauge, insufficient extraction pressure
9. 完全無法加熱、鍋爐常溫 No heating, boiler stays cold
10. 萃取咖啡噴濺、濾杯溢粉 Splashing coffee, portafilter overflow
11. 關機後持續滴水 Continuous dripping after power off
12. 機身過熱、頻繁觸發過熱保護 Overheated casing, frequent thermal protection trigger
13. 滿水仍提示缺水報警 Water shortage alarm with full tank
14. 蒸汽閥卡死、閥門滲汽 Stuck steam valve, steam leakage
15. 萃取後無法自動回水、水路積水發臭 No auto drain, smelly residual water
16. 機器反覆自動重啟、斷續供電 Frequent auto restart, intermittent power supply
17. 咖啡Crema稀薄、口感平淡 Thin coffee crema, flat flavor
18. 機內異味、咖啡帶金屬/霉味 Strange internal odor, metallic/moldy coffee taste
19. 沖煮手柄卡死無法拆卸 Stuck portafilter cannot be removed
20. 開機燈閃爍、報故障代碼無法啟動 Flashing power light, error code boot failure

WPM Welhome咖啡機10項專業保養知識 10 Professional WPM Welhome Coffee Machine Maintenance Tips

• 每7天清潔沖煮頭分水網與濾杯，清除咖啡油脂 Clean shower screen & portafilter every 7 days to remove grease
• 1–2個月使用食品級除垢劑清洗水路，預防水垢損壞鍋爐 Descale circuit every 1–2 months to prevent boiler limescale damage
• 每日用完蒸汽棒沖洗，擦淨奶漬避免細菌 Purge steam wand daily to eliminate milk residue bacteria
• 每3個月更換沖煮頭、蒸汽閥密封圈，防漏水滲汽 Replace gaskets every 3 months to stop water/steam leakage
• 機器兩側預留散熱空間，封閉會造成過熱自動熄機 Reserve ventilation gap to avoid overheat auto shutdown
• 每日更換水箱清水，長期停用排空水路防發霉 Refill fresh water daily; drain all water for long idle periods
• 禁止硬礦泉水，軟化水大幅減少水垢產生 Use softened water only, avoid hard mineral water
• 半年清潔散熱風扇與灰塵通道，維持散熱效能 Clean cooling fan & dust vents every 6 months
• 萃取後即時擦拭機身，殘漬會腐蝕金屬零件 Wipe machine after extraction to avoid metal corrosion
• 長期停用前完整除垢、排空水路、清潔膠圈乾燥存放 Full descaling & draining before long-term storage