中文
含义
温度传感器（NTC）短路报警。洗碗机NTC热敏电阻短路，主控读取到温度异常偏高，加热功能自动关闭。
常见原因
- NTC传感器引线绝缘破损后金属导体碰触短路
- 传感器探头进水或受潮导致测量值异常
- NTC元件被击穿失效（短路态）
- 接插件内部进水导致引脚间短路
- 加热器附近NTC引线高温烤焦绝缘层
自助排查
- 断电后检查NTC插头内部是否有水渍或腐蚀，用酒精清理并吹干
- 用万用表电阻档测量NTC两端——接近0Ω则短路，正常应约10kΩ（室温下）
- 检查引线是否有破损，特别是靠加热器段的高温区域
- 拔下NTC插头后单独测量传感器本体排除主板因素
- 传感器短路需更换NTC热敏电阻，同时排查进水原因
English
Meaning
Temperature sensor (NTC) short circuit alarm. The dishwasher NTC thermistor is shorted, causing the main control to read an abnormally high temperature. Heating is automatically disabled.
Common Causes
- Damaged NTC lead insulation with exposed conductors touching
- Water ingress or moisture in the sensor probe causing erratic readings
- NTC element breakdown (short-circuit failure mode)
- Water inside the connector causing pin-to-pin short
- Insulation melted by high heat from the nearby heater element
Self-Check Steps
- Power off, inspect the NTC connector for moisture or corrosion; clean with alcohol and dry thoroughly
- Measure NTC resistance with a multimeter — near-zero indicates a short; normal room-temperature reading is approximately 10 kΩ
- Inspect the leads for damaged insulation, especially near the heater area
- Disconnect the NTC and measure the sensor alone to isolate board-level issues
- Replace the NTC thermistor if shorted, and investigate the source of moisture ingress