Safety: Unplug the refrigerator before working in the rear machine compartment.

Steps to troubleshoot E10:

Access the condenser fan: Remove the rear lower cover to expose the condenser coil and fan assembly.
Visual inspection: Check if the fan blades are blocked by dust, pet hair, or debris. Clean thoroughly with a brush and vacuum.
Spin test: Try spinning the fan by hand. If it is stiff or seized, the motor is likely bad and should be replaced.
Electrical test: With the fan disconnected and power off, measure resistance across the motor terminals. An open circuit indicates a failed motor. On DC fans, verify that the main board is supplying the correct voltage when the compressor is running.
Check wiring: Inspect the harness from the main board to the fan for damage or loose connectors.
Replace components: Install a new OEM Danby condenser fan motor if defective. If the fan is good but not receiving power, the main control board may need replacement by a technician.

Danby refrigerator displays E10 and the condenser fan may not run, causing the cabinet to run hot on the sides.

Possible Causes