Dehumidifier displays E8 and shuts down; may be accompanied by unusual compressor cycling.

Safety: Unplug the unit before opening the cabinet.

Steps:

• Check environment: Ensure the room temperature is not below the minimum operating temperature. Very cold rooms can cause frequent defrosting and errors.
• Inspect evaporator: Remove covers to view the evaporator coil. If it is heavily iced over, allow the unit to thaw completely (leave unplugged for several hours).
• Locate defrost sensor: This is often the same as, or in addition to, the evaporator thermistor, clipped to the coil or tubing.
• Check sensor placement: Make sure the sensor is firmly attached to the coil/tube in the original location. Reattach with clips or aluminum tape if loose.
• Inspect wiring: Look for damage or corrosion on the sensor wires and connector. Reseat the connector on the main PCB.
• Replace sensor: If the sensor is physically damaged or tests open/short with a multimeter, replace it with the correct defrost/evaporator sensor for your Sharp model.
• PCB issue: If a new sensor does not resolve E8, the main control PCB defrost circuit may be defective and require replacement.

Tip: Keep filters clean and airflow unobstructed to reduce icing and defrost-related faults.