Fridge Won’t Cool / Not Cooling?
Don’t panic — this is one of the most common refrigerator issues, and it’s usually simple to fix. Most warm-fridge problems trace back to a handful of parts: start relay/overload, condenser or evaporator fan motor, defrost heater/thermostat/control, or a bad thermistor. With the quick checks below, you can pinpoint the issue fast.
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Common Causes
- ✔ Start relay/overload failure — compressor clicks but won’t run
- ✔ Dirty condenser coils or weak condenser fan motor
- ✔ Evaporator fan not running or iced over
- ✔ Defrost system failure causing a frost wall on the freezer panel
- ✔ Faulty thermistor or control board not calling for cooling
How to Diagnose It
- ✔ Listen for the compressor: steady hum = running; rapid clicking = relay/overload.
- ✔ Confirm both fans run (condenser in back/bottom, evaporator in freezer).
- ✔ Check freezer back panel for heavy frost (defrost failure).
- ✔ Verify vents are clear and gaskets seal tight (paper slip test).
- ✔ Meter test: thermistor ohms vs temp; defrost heater continuity; bi-metal closed when cold.
Quick DIY Steps
- Unplug fridge and pull it away from the wall.
- Vacuum/brush condenser coils; confirm condenser fan spins freely.
- Press the door switch: does the evaporator fan run? If not, replace it.
- If freezer panel is iced, troubleshoot defrost heater, thermostat, and control.
- If compressor just clicks, replace start relay/overload; re-test.
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Repair & Safety Disclaimer: All appliance repair information provided on this page is for educational purposes only. Always disconnect electrical power, shut off water supply, and use proper safety equipment before servicing any appliance. PartsDiscount.com is an independent retailer of OEM-compatible replacement parts and is not affiliated with or endorsed by any appliance brand. Brand names and part numbers are used for compatibility and identification only. Any repairs you perform are done at your own risk. If you are not confident in completing a repair safely, please consult a qualified technician.