Possible Causes

Dirty condenser coils, Failed condenser fan motor, Low refrigerant charge or sealed system leak, Faulty temperature sensor (thermistor)

How to Fix / Troubleshooting

Safety first: Unplug the refrigerator before cleaning coils or accessing the rear compartment.

Check door seals and loading: Make sure doors are closing fully and gaskets are intact. Avoid blocking air vents with food items.
Clean condenser coils: Pull the refrigerator away from the wall. Remove the lower rear access panel if present. Use a coil brush and vacuum to remove dust and pet hair from the condenser coils and around the condenser fan motor.
Verify condenser fan operation: With power restored, observe the fan next to the compressor. It should run whenever the compressor is running. If the compressor is hot and the fan is not spinning, replace the condenser fan motor.
Check for excessive frost: Frosted-over evaporator coils inside the freezer can reduce cooling and trigger CC. If present, see defrost-related codes (dE/dH) and address defrost system issues.
Monitor temperatures: After cleaning and verifying fan operation, allow 24 hours for temperatures to stabilize. If CC persists and the compressor runs almost constantly but cooling is poor, a sealed system issue (refrigerant leak, weak compressor) is likely and requires a certified technician.

2 Videos