Midea Washer Error Code E37

The E37 error code on a Midea washer indicates a failure in the drum drying outlet temperature sensor. This sensor is responsible for monitoring the air temperature as it exits the drum during the drying cycle. When the control board cannot read a valid signal from this sensor, it disables the drying function entirely to prevent potential overheating or unsafe operation. The washer's wash functions may still operate normally, but any drying capability will be suspended until the fault is resolved.

The outlet temperature sensor is a thermistor-based component, meaning it changes electrical resistance in response to temperature changes. A failure can stem from an open circuit, a short circuit, or a resistance value that falls outside the acceptable range expected by the control board. The sensor itself may have degraded due to heat exposure over time, or the wiring harness connecting it to the control board may have developed a break, loose connection, or corrosion at a connector terminal.

Before replacing the sensor itself, the recommended first diagnostic step is to inspect the internal wiring leading to the sensor. A visual check for pinched, burned, or disconnected wires, along with a continuity test on the harness, can quickly identify whether the fault lies in the wiring rather than the sensor. If the wiring checks out, the sensor should be tested for proper resistance values at room temperature and compared against specifications. Only after ruling out wiring issues should the sensor be considered for replacement.