成因：電源線斷裂、開關燒毀、保險絲熔斷、馬達線路脫落、溫度保護鎖機。自檢：檢查插座、電源插頭、機身開關；維修：更換保險絲、電源開關、重接馬達線、維修溫控模塊。

Cause: Broken power cord, burnt switch, blown fuse, loose motor wire, thermal lock. Self-check socket & power plug; Repair: replace fuse/switch, rewire motor, fix thermal module.

成因：傳動皮帶斷裂、聯軸器磨損、刀盤卡滿咖啡殘渣、金屬異物卡住刀組。自檢：清空豆倉觀察刀盤；維修：更換皮帶、聯軸器、拆解清潔刀盤。

Cause: Broken drive belt, worn coupler, coffee residue jam, metal stuck in burrs. Self-check hopper; Repair: replace belt/coupler, full burr cleaning.

成因：刀盤鈍化、刀盤移位、調節螺絲鬆動、中軸磨損間隙過大。保養：每3-6個月研磨清潔粉；維修：更換新刀盤、校正刀盤間距、更換中軸軸承。

Cause: Dull burrs, shifted burrs, loose adjustment screw, worn spindle bearing. Maintenance: clean burr every 3-6 months; Repair: new burr set, spindle bearing replacement.

成因：刀盤互相刮擦、軸承磨損缺油、螺絲脫落碰撞機殼、金屬雜質進入刀組。自檢：清空豆倉空轉測試；維修：校正刀盤、替換軸承、潤滑傳動組件。

Cause: Burr collision, dry worn bearing, loose screw, metal debris inside burrs. Self-check empty grind test; Repair: align burrs, new bearing, mechanical lubrication.

成因：豆倉擋板彈簧老化、閥門膠圈磨損、豆倉底座裂縫。維修：更換彈簧、密封膠圈、修補/替換豆倉。

Cause: Aging hopper shutter spring, worn rubber seal, cracked hopper base. Repair: new spring & seal, hopper replacement.

成因：油脂堆積結塊、潮濕咖啡粉黏附、導粉槽變形。保養：每週清潔導粉通道；維修：拆解深度除油、校正變形導粉槽。

Cause: Coffee oil buildup, damp powder stick, deformed chute. Maintenance: weekly chute cleaning; Repair: full degrease, chute reshaping.

成因：馬達過熱觸發溫度保護、散熱孔堵塞、電路板短路。自檢：清理散熱灰塵；維修：維修控溫板、更換老化馬達。

Cause: Motor overheat thermal cutout, blocked vent, short circuit PCB. Self-check vent dust; Repair: fix thermal PCB, replace aging motor.

成因：調節齒輪卡粉卡死、螺紋磨損滑牙、定位彈簧斷裂。維修：拆解清潔齒輪、更換調節機構、替換彈簧。

Cause: Gear jam with coffee dust, stripped thread, broken detent spring. Repair: gear cleaning, adjustment mechanism replacement.

成因：馬達碳刷磨損、電壓不穩、刀盤負荷過大、皮帶鬆弛。維修：更換碳刷、緊固傳動皮帶、校正刀盤間距減少負荷。

Cause: Worn motor carbon brush, loose drive belt, overloaded burrs. Repair: new carbon brush, belt tension adjustment.

成因：減震膠墊老化脫落、中軸偏心、刀盤不平衡、機腳磨損。維修：更換減震墊、校正中軸、平衡刀盤組。

Cause: Worn anti-vibration pad, unbalanced spindle & burrs. Repair: new shock pad, spindle balancing.

成因：控制面板受潮、按鍵電路氧化、主板供電故障、顯示屏損壞。維修：清潔觸控電路、更換控制面板、維修主控板。

Cause: Humid touch PCB, oxidized button circuit, faulty mainboard. Repair: PCB cleaning, touch panel / mainboard replacement.

成因：計時模塊故障、計量閥門卡粉、編碼器髒污、電路計數錯亂。維修：校正定量參數、清潔計量閥、替換計時模塊。

Cause: Faulty timer module, clogged dosing shutter, dirty encoder. Repair: recalibrate dose, clean dosing system, replace timer PCB.

成因：馬達線圈過熱燒損、電路板燒焦、塑膠件接觸高溫、咖啡油脂碳化。維修：檢查馬達絕緣、更換燒毀電路、深度除油清潔。

Cause: Burnt motor coil, charred PCB, carbonized coffee oil. Repair: motor insulation test, burnt circuit replacement, full degrease.

成因：電線絕緣層破損、接地線脫落、主板受潮短路。維修：更換破損線材、重接接地保護、烘乾維修電路板。

Cause: Damaged wire insulation, loose ground wire, damp short PCB. Repair: wire replacement, ground reconnection, PCB drying repair.

成因：刀盤散熱不良、馬達負荷上限不足、傳動機構磨損、油脂大量堆積。保養：每日收工清潔刀盤；維修：升級散熱、替換強化傳動配件。

Cause: Poor burr cooling, overloaded motor, worn drive parts. Maintenance: daily burr clean; Repair: cooling upgrade, heavy-duty drive replacement.

成因：刀盤生鏽、軸承磨損脫金屬、螺絲磨損脫屑。維修：拋光/更換刀盤、替換不鏽鋼軸承、加固全部固定螺絲。

Cause: Rusted burrs, worn bearing metal shedding, loose screw debris. Repair: polish/new burrs, stainless bearing swap.

成因：卡扣彈簧斷裂、塑膠卡扣磨損、豆倉蓋變形。維修：更換卡扣彈簧、替換塑膠卡扣、校正變形蓋體。

Cause: Broken lid latch spring, worn plastic clip, deformed cover. Repair: new spring & clip, cover reshaping.

成因：環境乾燥、導粉槽無靜電消除配件、塑膠材質導電差。保養：使用靜電消除刷；維修：加裝靜電消除金屬片、替換金屬導粉槽。

Cause: Dry environment, plastic chute without anti-static part. Maintenance: anti-static brush daily; Repair: install static eliminator metal piece.