原因:壓縮機故障、雪種洩漏、散熱塵垢過多
用戶自檢:檢查背後散熱位是否被雜物阻擋,門有冇關實
處理:清潔散熱網;雪種測漏加註;損壞需更換壓縮機
Cause:Compressor failure, refrigerant leak, dusty condenser
Self‑check:Check rear ventilation, confirm door fully closed
Repair:Clean condenser; leak test & refill refrigerant; replace compressor if damaged