成因：電源線斷裂、保險絲燒毀、內部變壓器損壞、開關接觸不良。維修：更換電源線/保險、維修變壓器、重接開關線路。

Cause: Broken power cord, blown fuse, damaged transformer, faulty power switch. Repair: Replace cord/fuse, fix transformer, rewire switch.

成因：出粉通道嚴重積粉阻塞、磨盤卡豆、傳動齒輪斷裂。維修：深度拆解清潔、取出卡滯咖啡豆、替換磨盤/齒輪組。

Cause: Chute clogged, beans stuck in burr, broken drive gear. Repair: Deep disassembly clean, remove stuck beans, replace burr/gear set.

成因：磨盤磨損變鈍、調節刻度移位、磨盤固定螺絲鬆動。維修：更換全新磨盤、重新校正研磨刻度、鎖緊固定結構。

Cause: Worn dull burr, misaligned adjustment dial, loose burr screws. Repair: New burr replacement, calibrate grind dial, fasten burr mount.

成因：金屬異物卡入磨盤、馬達軸承磨損、底座避震墊老化。維修：取出異物、更換馬達軸承、替換避震膠墊。

Cause: Metal foreign object stuck, worn motor bearing, aged shock pad. Repair: Remove debris, replace bearing, install new shock pads.

成因：馬達過載保護、線路短路、溫度感應器故障。維修：清理卡豆減輕負載、修復短路線路、替換溫控感應器。

Cause: Motor overload protection, short circuit, faulty thermal sensor. Repair: Clear stuck beans, fix wiring short, replace thermal sensor.

成因：出粉膠圈老化變形、接粉杯間隙過大、風扇回吹積粉。維修：更換密封膠圈、校正接粉位置、清理內部風道。

Cause: Aged chute rubber seal, gap between catch cup, air backflow powder. Repair: New rubber seal, adjust cup position, clean internal air duct.

成因：刻度螺紋積粉卡滯、調節金屬件生鏽、定位彈簧斷裂。維修：拆解清潔螺紋、除鏽潤滑、更換調節彈簧組件。

Cause: Powder jammed dial thread, rusted metal adjuster, broken spring. Repair: Disassemble & clean thread, anti-rust lubricate, replace spring assembly.

成因：計時電路板故障、光感計數器髒污、馬達轉速不穩。維修：維修/替換控制板、清潔光感感應、校正馬達轉速。

Cause: Faulty timer PCB, dirty optical sensor, unstable motor RPM. Repair: Repair/replace control board, clean optical sensor, calibrate motor speed.

成因：安全開關彈簧鬆脫、感應觸點氧化、蓋子定位變形。維修：重裝彈簧、打磨氧化觸點、校正豆倉蓋結構。

Cause: Loose safety switch spring, oxidized contact, deformed hopper lid. Repair: Reinstall spring, polish contact point, adjust lid mount.

成因：磨盤嚴重磨損崩齒、內部金屬件摩擦脫屑。維修：立即更換全新一組磨盤，全面拆解清洗機身。

Cause: Chipped heavily worn burr, metal part friction shedding debris. Repair: Full new burr set replacement, full machine disassembly deep clean.

成因：散熱風扇損壞、散熱孔積粉堵塞、馬達老化耗電過高。維修：更換散熱風扇、清理散熱通道、檢測馬達繞組。

Cause: Broken cooling fan, clogged vent, aged high-power motor. Repair: Replace cooling fan, clear vent holes, test motor winding.

成因：面板進水受潮、觸控IC燒毀、排線鬆脫氧化。維修：乾燥除濕、維修觸控電路板、重插替換排線。

Cause: Water/moisture damage, burnt touch IC, loose oxidized ribbon cable. Repair: Dehumidify unit, fix touch PCB, replace ribbon cable.

成因：豆倉卡扣斷裂、底座固定環磨損、螺絲遺失。維修：替換卡扣配件、更換固定環、補齊固定螺絲。

Cause: Broken hopper clip, worn base ring, missing screw. Repair: New clip parts, replace fixing ring, refill missing screws.

成因：馬達碳刷磨損、電壓供電不足、磨盤積油粉增加阻力。維修：更換馬達碳刷、檢查電源供電、深度清洗磨盤組。

Cause: Worn motor carbon brush, low voltage supply, oily powder jam burr. Repair: New carbon brush, power supply test, full burr deep clean.

成因：線路過熱塑膠融化、馬達繞組燒毀、積粉高溫碳化。維修：立即斷電檢查線路、維修或更換馬達、清除碳化殘粉。

Cause: Overheated melted wiring plastic, burnt motor winding, carbonized powder. Repair: Power off circuit inspection, repair/replace motor, remove carbon residue.

成因：磨盤積粉結塊、軸心生鏽潤滑流失。維修：全拆解清洗磨盤、軸心除鏽上食品級潤滑油。

Cause: Clumped powder on burr, rusted dry shaft. Repair: Full disassembly clean, anti-rust & food-safe lubricate shaft.

成因：紅外感應頭被粉覆蓋、感應器損壞、支架移位。維修：清潔感應鏡頭、替換紅外模組、校正支架位置。

Cause: Powder covered IR sensor, broken sensor, misaligned mount. Repair: Clean sensor lens, replace IR module, adjust bracket position.

成因：底部防滑膠墊磨平、馬達固定螺絲鬆動、桌面不平整。維修：更換全新防滑墊、鎖緊馬達固定螺絲、調平放置平面。

Cause: Worn anti-slip pad, loose motor screw, uneven countertop. Repair: New anti-slip pads, fasten motor screws, place on flat surface.

成因：潮濕環境金屬件氧化、殘粉受潮結塊卡死結構。維修：除鏽拆解保養、清除受潮積粉、內部乾燥防鏽處理。

Cause: Humidity metal oxidation, damp clumped leftover powder jam parts. Repair: Rust removal maintenance, clear damp powder, internal anti-rust dry treatment.

成因：長期未清潔殘粉油脂酸化、磨盤殘留陳年咖啡油垢。保養方案：每月深度拆解清洗磨盤與出粉通道，定期除油保養。

Cause: Oxidized old coffee oil & leftover powder on burr. Maintenance solution: Monthly full disassembly clean burr & chute, regular degrease maintenance.