Refrigerator runs constantly and never cycles off; temperatures may be normal or slightly low.

Safety first: Unplug the appliance before cleaning coils or inspecting wiring.

Steps:

• 1. Verify actual temperatures: Use a thermometer to confirm fridge and freezer temperatures. If they are below recommended levels, increase the set temperatures slightly.
• 2. Check door seals: Inspect gaskets for gaps, tears, or hardened sections. Close a sheet of paper in the door; it should have firm resistance when pulled.
• 3. Clean condenser: Vacuum and brush the condenser coils at the rear or underneath. Poor heat dissipation forces longer run times.
• 4. Evaluate sensors: If the unit still runs continuously, test NTC sensors for correct resistance at known temperatures and replace any that are out of spec.
• 5. Control board: Persistent overrun with correct sensors and seals may indicate a faulty main PCB that is not cycling the compressor correctly.

Tip: Avoid setting the appliance to the coldest settings unless absolutely necessary; this can cause continuous operation.