Most likely causes
- Blocked front vent on built-in units. Undercounter models need clear airflow at the kick plate.
- Failed condenser or interior fan.
- Worn door gasket letting warm air in.
- Thermostat or temperature sensor failure.
- Thermoelectric unit in too warm a room. Most can only cool about 20–25°F below room temperature.
Try this before you book
- Check that the vent grille is clear and dust-free.
- Make sure a freestanding unit isn't installed in a cabinet. Freestanding models need side clearance.
- Close the door on a piece of paper in a few spots to test the seal.
- Move bottles to a backup fridge if temperatures have climbed more than a few degrees.
Parts we replace most often
- Fan motor
- Door gasket
- Thermostat or sensor
- Control board
- Compressor or sealed system (the major repair)
Fix it or replace it?
For compressor-cooled and built-in units, repair almost always makes sense, since replacements cost more and must fit an existing cabinet opening. Small, inexpensive thermoelectric units often aren't worth more than a fan or thermostat repair.
From John's notes: A lot of thermoelectric coolers fail in Dallas because they sit in a sunroom or a kitchen that hits 85°F in summer. They were never designed for that. Moving the unit can solve the "failure" entirely.
Collection at risk? Book a wine cooler repair with TrueFix Appliance Repair Dallas.