中文
含义
6-2 表示主控板检测到进水电磁阀电路电气故障。进水电磁阀是一个由线圈驱动的电磁铁装置，主控板通过控制 TRIAC 或继电器间歇为阀线圈供电（通常 120V AC），通电时阀芯吸起打开水路，断电时弹簧复位关闭。当主控板检测到阀线圈回路电流异常（过流、短路或无电流），显示 6-2 代码并禁用进水功能。
常见原因
- 进水电磁阀线圈匝间短路或烧毁，导致通电时电流过大，主控板检测到过流后切断供电并报警。
- 进水电磁阀线圈引线端子氧化或接触不良，主控板输出驱动信号但线包无电流流过，检测为开路。
- 主控板上驱动进水阀的 TRIAC 被击穿短路，阀保持常通电状态持续进水（与 6-1 浮子触发配合），随后主控板检测到异常。
- 主控板上驱动进水阀的 TRIAC 或继电器开路，无法为阀线圈供电。
- 进水阀线束在机箱内侧被金属边缘割破接地，造成线圈回路对地短路。
- 阀体内机械卡滞导致阀芯无法正常吸合，线圈长时间通电过热烧毁。
- 供电电压异常波动（过高或过低），超出阀线圈的额定工作电压范围导致损坏。
自助排查
- 断开洗碗机电源，找到进水电磁阀（通常位于机器底部前方进水软管接口处），目视检查阀体外观是否有烧焦变色或塑料外壳熔化现象。
- 检查进水阀线束插头是否牢固连接，拔下插头观察金属端子是否有绿色铜锈或烧蚀黑点。
- 用万用表电阻档测量进水阀线圈两端：正常阻值通常为 500Ω–1500Ω（120V 阀）；如阻值为无穷大（OL），说明线圈已断路需更换；如阻值明显偏低（<100Ω），说明线圈匝间短路需更换。
- 检查进水阀至主控板的线束走线，确保没有被机箱金属边缘割伤或挤压。
- 如条件允许，在阀线圈端子上外加 120V 交流电（安全操作，防止触电），听是否有清晰的”咔嗒”吸合声；无声说明阀机械卡死或线圈断路。
- 若阀线圈和线束均正常但仍报 6-2，说明主控板驱动电路故障，需联系凯膳怡售后更换主控板。
English
Meaning
6-2 indicates that the main control board has detected an electrical fault in the water inlet solenoid valve circuit. The inlet valve is an electromagnet device driven by a coil; the control board intermittently supplies power to the valve coil (typically 120V AC) via a TRIAC or relay. When energized, the valve plunger lifts to open the water path; when de-energized, the spring resets and closes it. When the control board detects abnormal current in the valve coil loop (overcurrent, short circuit, or no current), it displays code 6-2 and disables the water fill function.
Common Causes
- The inlet solenoid valve coil has an inter-turn short or has burned out; the control board detects excessive current when powered and cuts off supply while raising the alarm.
- The inlet valve coil lead terminals are oxidized or have poor contact; the control board outputs the drive signal but no current flows through the coil, detected as an open circuit.
- The TRIAC driving the inlet valve on the main control board has broken down and shorted, keeping the valve constantly energized and continuously filling (in conjunction with the 6-1 float trigger); the control board subsequently detects the anomaly.
- The TRIAC or relay driving the inlet valve on the main control board has opened, unable to supply power to the valve coil.
- The inlet valve wiring harness has been cut by sharp metal edges inside the chassis and shorted to ground, causing a ground fault in the coil loop.
- Mechanical binding inside the valve body prevents the plunger from properly pulling in; the coil overheats and burns out from prolonged energization.
- Abnormal power supply voltage fluctuations (too high or too low) exceed the valve coil’s rated operating voltage range, causing damage.
Self-Check Steps
- Disconnect power, locate the water inlet solenoid valve (typically at the bottom front of the machine near the inlet hose connection), and visually inspect the valve body for scorch marks, discoloration, or melted plastic housing.
- Check that the inlet valve wiring harness connector is securely seated; unplug it and inspect the metal terminals for green copper corrosion or black arc-burn spots.
- Use a multimeter in resistance mode to measure across the inlet valve coil terminals: normal resistance is typically 500Ω–1500Ω for a 120V valve; infinite resistance (OL) means the coil is open and needs replacement; a significantly low reading (<100Ω) means an inter-turn short and requires replacement.
- Trace the wiring harness from the inlet valve to the main control board, ensuring it has not been cut or crushed by the chassis metal edges.
- If conditions permit, safely apply 120V AC to the valve coil terminals (with proper safety precautions to prevent electric shock) and listen for a clear “click” of the plunger pulling in; no sound indicates the valve is mechanically stuck or the coil is open.
- If the valve coil and harness are both normal but code 6-2 persists, the drive circuit on the main control board has failed — contact KitchenAid after-sales service for control board replacement.