E7 - hisense Washer

中文

含义

E7 为 NTC 温度传感器开路或短路。NTC 用于检测洗涤水温，配合加热管实现精确控温。

常见原因

1. NTC 传感器老化阻值漂移
2. NTC 连接线束断裂
3. NTC 探头水密失效进水
4. 控制板检测电路故障

自助排查

1. 选择常温洗涤确认洗衣机能否正常工作，如能则问题在加热或温度检测回路。
2. 用万用表测量 NTC 阻值，室温下通常为数十 kΩ，如偏差过大或无穷大说明损坏。
3. 检查 NTC 连接线束是否松动或断裂。
4. 如 NTC 正常，控制板检测电路可能有问题，需联系海信售后诊断。

English

Meaning

NTC temperature sensor open or short circuit. The NTC detects wash water temperature and works with the heating element for precise temperature control.

Common Causes

1. NTC sensor aging, resistance drift
2. NTC wiring harness broken
3. NTC probe water seal failed causing water ingress
4. Control board detection circuit fault

Self-Check Steps

1. Select a cold wash cycle to confirm the washer works normally; if so, the problem is in the heating or temperature detection circuit.
2. Use a multimeter to measure NTC resistance; at room temperature it is typically tens of kΩ; infinite or zero indicates damage.
3. Check whether the NTC wiring harness is loose or broken.
4. If the NTC is normal, the control board detection circuit may be faulty; contact Hisense service for diagnosis.