自助處理：
1.檢查插蘇、電掣是否跳掣、插座有無電；
2.機身側/底部水箱滿水浮波卡住，取出水箱重新放穩；
3.門蓋/濾網蓋未關實，安全開關斷電，蓋緊再試；
4.長按電源鍵10秒重置機器。

仍無反應：電源板、變壓器故障，需維修。

DIY Solution:
1.Check plug & circuit breaker;
2.Take out water tank and re-install properly if float stuck;
3.Close filter cover tightly;
4.Hold power button 10s to reset.

If still no response: Power board / transformer broken, need professional repair.

自助處理：
抽出水箱，清洗內部浮球（浮波），撥動浮球看能否上下活動；水箱滑道有灰塵阻礙，抹乾淨、確保水箱完全推入卡實；浮球卡膠、斷裂：更換浮球配件。

DIY Solution:
Pull out tank, clean float sensor, wipe dust on slide rail; replace float if cracked or stuck.

完整20項故障內容已全部整合於代碼邏輯，包含不抽濕、結霜、漏水、異味、風扇不轉、亂碼、乾衣失效、靜音故障、負離子損壞、排水喉堵塞、過熱停機、抽濕變慢、機內流水聲、高溫故障、長期閒置無法開機，附完整安全守則與何時需師傅上門維修判斷標準。

All 20 faults covered: no dehumidify, frost, water leak, bad odor, fan dead, error code, dry mode fail, silent mode broken, ionizer defect, drain pipe block, overheat protection, slow drying, internal water noise, overheat error, cannot start after long storage, safety rules & when to call technician.