Refrigerator not cooling but lights are on; both fresh food and freezer sections are warm.

Safety first: Do not attempt to open sealed system lines. Unplug the refrigerator before removing rear panels.

Steps to resolve:

• Check basic power: Confirm the outlet has power by plugging in another device. Ensure the refrigerator is not in showroom/demo mode (refer to user manual for exit procedure).
• Listen at the back: With the unit plugged in and calling for cooling, listen for the compressor. A steady hum indicates running; silence or a brief click every few minutes suggests a start problem.
• Inspect start relay: Remove the rear lower panel (power off). The start device is attached to the compressor. Check for burnt smell or rattling when gently shaken—signs of failure.
• Check condenser fan: When the compressor should be running, the condenser fan should also run. If the fan runs but the compressor does not, the compressor or start device is suspect.

If the compressor is hot to the touch and not running, or if there is no cooling despite the compressor running continuously, a sealed system issue is likely. These repairs require specialized tools and EPA certification; contact a professional technician.