The wine cooler is not cooling at all; the interior is at room temperature, but the lights and display work.

Safety: Unplug the unit before accessing the rear compartment. High voltage is present when powered.

Steps:

• Determine cooling type: Most larger Magic Chef wine coolers use a compressor; some small countertop units use thermoelectric (Peltier) modules. A compressor unit has a black metal can (compressor) at the back; a thermoelectric unit has a small metal heat sink with a fan and no compressor.
• Check for compressor operation: Plug in the unit and listen: do you hear a low hum or vibration from the compressor? If it is silent and cool to the touch after 15–20 minutes, it is not running.
• Inspect start relay/overload (compressor models): Unplug the unit, remove the start device from the compressor, and check for burn marks or rattling. Replace with the correct Magic Chef-compatible start relay/overload if suspected.
• Check fans: Ensure both interior and condenser fans run when cooling is called for. If the fans run but the compressor never starts, suspect a faulty relay or control board.
• Thermoelectric models: Verify that the Peltier module fan runs. If the fan runs but the heat sink stays at room temperature, the Peltier module may be open or the DC power supply on the board may have failed.
• Replace failed component: For compressor units, replace the start relay first; if no change, the main control board or compressor may be faulty. For thermoelectric units, replace the Peltier module and/or DC power board as a set.

Warning: If the compressor is receiving power but not starting (verified by a professional), the compressor itself has likely failed and requires sealed system service or unit replacement.