Unit emits a loud buzzing or humming noise from the back that is louder than normal compressor operation.

Safety: Unplug the unit before accessing the rear compartment.

Steps:

• Access condenser area: Remove the rear lower panel to expose the condenser fan and coil.
• Inspect fan: Check for debris in the fan blades and ensure the blade is not contacting the shroud. Clean and adjust as needed.
• Check fan motor: Spin the blade by hand; if it feels rough or wobbly, the motor bearings may be worn. Replace the condenser fan motor.
• Secure condenser coil: Ensure the coil is firmly mounted and not vibrating against the cabinet. Tighten brackets or add foam spacers if necessary.

After repair: Reassemble and verify that the noise level is reduced to a normal hum.