Dehumidifier displays E2 and will not run the compressor or fan.

Safety: Disconnect power before opening the cabinet. Sharp metal edges are present around the coil.

• Reset attempt: Unplug the unit for 10 minutes to clear any transient error. If E2 returns immediately, proceed with inspection.
• Locate evaporator sensor: Remove the bucket and front cover. The evaporator sensor is usually clipped directly to the evaporator coil tubing or fins, often wrapped in a small metal or plastic clip with two wires leading back to the PCB.
• Visual inspection: Look for a sensor that has fallen off the coil, broken insulation, or corrosion at the clip. Ensure the sensor is firmly attached to the coil surface.
• Check connection: Trace the sensor wires to the main control board. Unplug and replug the connector several times to clean contacts.
• Measure resistance: Use a multimeter to measure the NTC resistance at room temperature. Compare to the ambient sensor if they are the same part number. A reading of OL or 0 Ω indicates a failed sensor.
• Replace sensor: If faulty, install a new Comfee evaporator temperature sensor (NTC). Clip it securely to the coil in the same location to ensure proper defrost sensing.
• Control board evaluation: If a new sensor does not clear E2, the main PCB is likely defective and should be replaced as an assembly.