Safety: Unplug the unit. Beware of sharp metal edges around the fan housing.

Steps:

Check for obstructions: Remove the air filter and visually inspect the fan wheel (blower). Remove any plastic, debris, or ice blocking rotation.
Spin test: Gently spin the fan by hand. It should rotate freely without grinding noises. If stiff or noisy, the motor bearings may be failing.
Access fan motor: Remove the rear or side panel to expose the fan motor assembly.
Inspect wiring: Ensure the fan motor plug is firmly connected to the main PCB. Look for burnt or loose terminals.
Test motor (if you have a multimeter): Measure resistance across motor windings. An open circuit indicates a failed motor.
Replace fan motor: If the motor is seized or electrically open, install a new Orbegozo-compatible fan motor assembly, transferring the fan wheel if necessary.
PCB issue: If a known-good motor does not run and E7 persists, the fan driver on the main PCB may be defective and require board replacement.

Dehumidifier displays E7 and will not start dehumidification

Possible Causes