04 - 夏普 空调

中文

含义

压缩机排气温度传感器故障。检测压缩机排气管温度的热敏电阻失效，可能导致压缩机排气高温保护失效或误报，严重时可能损坏压缩机。

常见原因

1. 排气温度传感器开路或短路
2. 传感器安装位置偏移，未接触排气管壁
3. 排气管高温导致传感器特性老化或损坏
4. 传感器线束耐热层破损短路
5. 主板检测电路滤波电容漏电导致采样偏移

自助排查

1. 断电后测量排气温度传感器阻值，常温下通常在50kΩ左右，高温时阻值下降
2. 检查传感器探头是否紧贴排气管且固定良好
3. 检查线束外皮有无高温熔融痕迹
4. 更换同型号排气温度传感器

English

Meaning

Compressor discharge temperature sensor failure. The thermistor on the compressor discharge pipe has failed, potentially disabling or falsely triggering high-discharge-temperature protection, which may damage the compressor.

Common Causes

1. Open or shorted discharge temperature sensor
2. Sensor probe misaligned — not contacting the discharge pipe wall
3. Sensor element degraded by prolonged exposure to discharge-pipe heat
4. Sensor wire insulation melted or shorted by high pipe temperature
5. Leaking filter capacitor on the main board’s sampling circuit causing reading drift

Self-Check Steps

1. Power off and measure the discharge sensor resistance — typically ~50kΩ at room temperature, decreasing at higher temperatures
2. Verify the sensor probe contacts the discharge pipe surface and is securely clamped
3. Inspect the wiring for melted insulation near the pipe
4. Replace with the exact discharge temperature sensor model specified for your unit