中文
含义
温度传感器（NTC）开路报警。洗碗机NTC热敏电阻断路，主控无法获取正确的水温信号，加热功能自动关闭。
常见原因
- NTC热敏电阻探针断裂或引线断开
- 传感器线束接口松动或接触不良
- 长期使用后NTC元件老化失效（开路）
- 加热腔内高温导致焊点开焊
- 线束被洗碗机底部金属锐边磨断
自助排查
- 断电后拔插NTC传感器插头，重新上电观察是否消除
- 用万用表电阻档测量NTC两端阻值（25°C约10kΩ），若无穷大则开路
- 检查线束是否有破损或被机器底部金属件割断
- 若阻值正常但报错持续，检查主板插座是否腐蚀
- 确认传感器损坏需更换同规格NTC，并检查线束走向避免再次磨损
English
Meaning
Temperature sensor (NTC) open circuit alarm. The dishwasher NTC thermistor is open, so the main control cannot read the correct water temperature and disables heating.
Common Causes
- Broken NTC thermistor probe or wire lead
- Loose or poor contact in the sensor harness connector
- Aged NTC element that has failed open-circuit
- Solder joint fatigue in the high-temperature wash chamber
- Harness chafed through by sharp metal edges under the dishwasher
Self-Check Steps
- Power off, reseat the NTC sensor connector, then restart to see if the error clears
- Measure NTC resistance with a multimeter (approximately 10 kΩ at 25°C); infinite reading confirms an open circuit
- Inspect the sensor harness for breaks or cuts from sharp metal edges in the base
- If resistance is normal but the error persists, check the mainboard socket for corrosion
- Replace the NTC with the correct specification and re-route the harness to prevent future chafing