E2 - TCL 空气净化器

中文

含义

空气净化器温湿度传感器故障。E2 表示温度和/或湿度传感器无响应或数据异常，显示屏上的温湿度读数可能为错误值或空白。

常见原因

1. 温湿度传感器（通常为单芯片 SHT/DHT 系列）损坏。
2. 传感器焊点虚焊或排线接触不良。
3. 传感器被灰尘覆盖，影响感知精度。
4. 传感器周围气流异常，如靠近出风口导致读数不准确。
5. 传感器供电电压异常。
6. 传感器长期暴露在高湿度环境中，内部腐蚀失效。

自助排查

1. 断电 2 分钟后重新通电，观察 E2 是否消失。
2. 用干棉签或软布轻轻擦拭传感器探头（通常为机器侧面的小格栅或通风孔内）。
3. 检查机器周围的空气是否过于潮湿——将机器移到通风干燥处再测试。
4. 若温湿度显示完全无数据，可能是传感器模块损坏。该故障通常不影响净化器的核心过滤功能。联系 TCL 售后更换传感器模块。

English

Meaning

The temperature and humidity sensor has a fault. E2 indicates the temperature and/or humidity sensor is unresponsive or data is abnormal; the temperature/humidity reading on the display may show an error or be blank.

Common Causes

1. The temperature/humidity sensor (typically a single-chip SHT/DHT series) is damaged.
2. The sensor solder joints are cracked or the ribbon cable has poor contact.
3. The sensor is covered with dust, affecting sensing accuracy.
4. Abnormal airflow around the sensor (e.g., too close to the air outlet), causing inaccurate readings.
5. Abnormal sensor supply voltage.
6. The sensor has been exposed to high humidity for extended periods, causing internal corrosion failure.

Self-Check Steps

1. Power off for 2 minutes, then power on again and check whether E2 clears.
2. Gently wipe the sensor probe with a dry cotton swab or soft cloth (typically located behind a small grille or vent on the side of the unit).
3. Check whether the air around the unit is excessively humid — move the unit to a well-ventilated dry area and retest.
4. If the temperature/humidity display shows no data at all, the sensor module may be damaged. This fault typically does not affect the purifier’s core filtration function. Contact TCL after-sales to replace the sensor module.