Dryer stops mid-cycle and displays E04; may be accompanied by very hot cabinet or drum.

Safety first: Disconnect power and allow the dryer to cool completely before working on it.

Restore airflow:

• Clean the lint filter: Remove the door filter and any secondary filters. Wash with warm soapy water, dry thoroughly, and refit.
• Check the condenser (condenser models): Remove the condenser unit from the bottom front compartment. Rinse thoroughly under running water to clear lint from the fins. Allow to drain and refit securely.
• Inspect venting (vented models): Disconnect the vent hose from the back of the dryer and from the wall outlet. Clear any lint build-up, kinks, or crushed sections. Ensure the external vent flap opens freely.
• Check the fan: Access the fan housing (usually from the rear or side). Ensure the fan wheel is not clogged with lint and spins freely on the motor shaft.

Reset and test: Some Belling dryers have a manual reset thermostat on the heater housing. With power off, press the small red button if present. Reassemble, reconnect power, and run a short cycle while monitoring temperature.

If E04 returns: The fan motor may be weak or the control board may be misreading temperature. Professional diagnosis is recommended.