西門子抽油煙機 LR96CAQ50B iQ500 專業維修 Siemens Range Hood LR96CAQ50B iQ500 Repair Service

故障現象 Fault Symptom

通電無燈光、無蜂鳴、風扇不啟動No light, no beep, fan cannot start

成因分析 Cause

插座斷電 / 插頭鬆脫、機內保險絲熔斷、電源線斷路、主控板供電電容擊穿、地線漏電保護跳閘Socket power cut, loose plug, blown fuse, broken power cord, damaged main board capacitor, earth leakage tripped

用戶自檢 Self-check

換插座測試；檢查全屋廚電空氣開關；拆開機頂接線盒看電源線有無發黑斷線Test another socket; check kitchen circuit breaker; open top wiring box for burnt wire

維修替換零件 Spare Parts

電源線、保險管、主控電路板、降壓電容Power cord, fuse tube, main control board, step-down capacitor

故障現象 Fault Symptom

觸控無反饋、按鍵錯亂、只有某一檔能用、螢幕不亮No touch feedback, disorder buttons, only single gear works, screen black

成因分析 Cause

面板油污滲入短路、觸控晶片損壞、排線鬆脫氧化、電壓衝擊燒壞觸控板Oil short circuit, broken touch IC, loose oxidized cable, voltage surge damage panel

用戶自檢 Self-check

用酒精徹底擦拭面板油污；斷電靜置5分鐘復位；重新插緊內部排線Clean panel with alcohol; power off 5 mins reset; re-plug internal cable

維修替換零件 Spare Parts

觸控面板總成、排線、主控板Touch panel assembly, ribbon cable, main board

故障現象 Fault Symptom

按鍵通電有聲，電機悶響，扇葉卡死不動Machine powered with hum, fan blade locked

成因分析 Cause

啟動電容容量衰減擊穿、電機軸承油污卡死、風輪纏保鮮膜/鋼絲球異物、電機繞組開路Degraded start capacitor, oil locked bearing, foreign object wrapped fan, open motor winding

用戶自檢 Self-check

斷電手動撥動風輪，卡頓=異物/軸承；順滑則電容損壞Turn fan wheel manually, stuck = foreign object; smooth = faulty capacitor

維修替換零件 Spare Parts

電機啟動電容、風機電機總成Motor start capacitor, fan motor assembly

現象：高低檔差距小，爆炒吸力不足；成因：電容不足、濾網堵塞、煙管壓扁、止回閥卡滯；自檢：清洗濾網；零件：啟動電容、電機、止回閥

Symptom: Weak suction; Cause: Bad capacitor, clogged filter, crushed duct; Self-check: Clean filter; Parts: Capacitor, motor, check valve

成因：掛架螺絲鬆動、風輪油污失衡；零件：風輪、電機支架

Cause: Loose bracket, unbalanced fan wheel; Parts: Fan wheel, motor bracket

成因：軸承磨損、風輪變形擦殼；零件：風機電機、變形風輪

Cause: Worn bearing, deformed fan scraping shell; Parts: Fan motor, fan wheel

成因：止回閥油污卡死、煙管過長彎頭多；零件：不鏽鋼止回閥、鋁箔煙管

Cause: Stuck check valve, long bent duct; Parts: Stainless check valve, aluminum duct

成因：安裝傾角不足、導油槽堵塞、膠條老化；零件：導油密封膠條、油杯、風輪

Cause: Wrong installation angle, clogged oil channel; Parts: Seal strip, oil cup, fan wheel

成因：LED燈板燒毀、排線鬆脫；零件：LED燈板、燈板連接線

Cause: Burnt LED board, loose cable; Parts: LED panel, light wire

成因：清洗水泵故障、加熱管燒斷；零件：清洗水泵、加熱組件、水位探頭

Cause: Broken pump, burnt heater; Parts: Clean pump, heater, water sensor

成因：濾網積油過載、加熱過熱保護；零件：溫度溫控器、疏通管路

Cause: Overloaded filter, overheat protection; Parts: Thermostat, clean pipeline

成因：主控板高速繼電器損壞、電機高速繞組斷路；零件：主控板、調速電機

Cause: Broken high speed relay, open motor winding; Parts: Main board, speed motor

成因：延時程式故障、繼電器黏連；零件：觸控面板、主控板

Cause: Delay program error, stuck relay; Parts: Touch panel, main board

成因：電機溫控跳脫、濾網堵塞散熱差；零件：電機熱保護器、風機電機

Cause: Tripped thermal protector, clogged filter; Parts: Thermal fuse, fan motor

成因：電機繞組短路、線路融化；零件：電機總成、主控板、內部線束

Cause: Short motor winding, melted wire; Parts: Motor assembly, main board, wiring harness

成因：電池無電、紅外接收板油污遮擋；零件：紅外接收板、原廠遙控

Cause: Flat battery, dirty IR receiver; Parts: IR board, original remote

成因：聯動感應頭油污遮擋、信號線脫落；零件：聯動探頭、訊號線、主控板

Cause: Dirty link sensor, loose signal wire; Parts: Link sensor, signal cable, main board

成因：供電不穩、排線氧化接觸不良；零件：顯示面板、主控板

Cause: Unstable power, oxidized cable; Parts: Display panel, main board

成因：地線未接好、線皮破損漏電；零件：破損線束、漏電電機、主控板

Cause: Bad earth wire, broken insulation; Parts: Wiring harness, leakage motor, main board

成因：未執行復位、感應開關損壞；零件：濾網感應微動開關

Cause: No reset operation, broken sensor switch; Parts: Filter micro switch