Refrigerator and freezer both warm; compressor not running; interior lights still work.

Safety: Unplug the refrigerator before accessing the compressor compartment. High voltage and hot components may be present.

Steps to diagnose compressor start issues:

• Listen for sounds: Plug in the unit and listen for a brief hum followed by a click from the compressor area. Repeated clicking often indicates a start device problem.
• Access compressor: Remove the rear lower cover to expose the compressor and start device.
• Inspect start relay/PTC: Remove the start device from the compressor terminals. Check for burn marks, melted plastic, or rattling when shaken. Replace if damaged.
• Test compressor windings: With power off, measure resistance between the three compressor pins. You should see finite resistances and no continuity to ground. If windings are open or shorted to ground, the compressor is faulty and requires professional replacement.
• Check overload protector: Test for continuity through the overload device. Replace if open.
• Control board: If the compressor and start components are good but the compressor never receives power, the main control board relay may be defective and should be replaced.