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When your refrigerator stops cooling, the instinct is to assume the worst — dead compressor, huge bill, new fridge. In reality, over 70% of refrigerators that stop cooling have a simple, inexpensive fix. A defrost heater. An evaporator fan. A dirty coil. The key is correct diagnosis before any parts are replaced.
Food safety alert: Refrigerators should stay below 40°F. If yours has been warm for over 4 hours, move perishables to a cooler with ice while waiting for repair.
Check These 3 Things First — Free
Before calling anyone, spend 2 minutes here. These resolve about 20% of all "not cooling" calls at zero cost:
- Temperature settings — check the dial wasn't accidentally moved. Set fridge to 37°F, freezer to 0°F.
- Condenser coils — pull the fridge from the wall or remove the kick plate. If coils are covered in dust and pet hair, vacuum them. This alone can restore cooling on older units.
- Door gaskets — close the door on a piece of paper and pull it. If it slides out easily, the gasket is failing and warm air is entering continuously.
Still not cooling after these checks? We diagnose it same-day in Kerrville TX. Free estimate. Parts and labor warranty.
Call (830) 532-2188Defrost System Failure
Every modern refrigerator runs a defrost cycle every 6–12 hours to melt frost on the evaporator coils. If the defrost heater, thermostat, or timer fails, frost builds up until it completely blocks airflow. Result: freezer stays cold, refrigerator section warms completely.
How to check: Open the freezer and remove the back panel. A thick wall of frost covering the coils confirms defrost system failure.
Evaporator Fan Motor Failed
The evaporator fan circulates cold air from the freezer into the refrigerator section. When this motor fails, the freezer stays cold but the refrigerator section warms to 50°F+. You will hear silence from the freezer where a fan should be running.
Dirty Condenser Coils
Condenser coils release heat from the refrigerant system. When coated in dust and pet hair, they cannot release heat efficiently — causing gradual cooling loss over weeks. This is one of the most preventable fridge failures.
Condenser Fan Motor Failed
Bottom-freezer and side-by-side refrigerators have a condenser fan near the compressor at the bottom rear. When it fails, the compressor overheats and cooling stops even though the compressor is running.
Refrigerant Leak
A refrigerant leak causes gradual cooling loss over days or weeks. The fridge runs constantly but never reaches temperature. Requires an EPA-certified technician — call us for same-day diagnosis in Kerrville TX.
Compressor Failure
Compressor failure is real but far less common than assumed. A failed compressor causes clicking sounds from the back as it tries to start and trips the overload protector. The entire unit will be room temperature. Do not assume compressor failure before a technician tests it electrically — we routinely see refrigerators misdiagnosed as needing compressors when the real cause is a $150 defrost heater.
By Brand — Common Failure Patterns
| Brand | Most Common "Not Cooling" Cause | Brand Page |
|---|---|---|
| Samsung | Ice maker icing over evaporator fan, defrost sensor failure | Samsung Repair → |
| LG | Linear Compressor failure, evaporator fan motor | LG Repair → |
| Whirlpool / Maytag | Defrost heater failure, evaporator fan motor | Whirlpool Repair → |
| GE / GE Profile | Defrost system, damper control failure | GE Repair → |
| Frigidaire | Evaporator fan circuit failure, defrost thermostat | Frigidaire Repair → |
| Bosch | Sealed system issues, temperature sensor faults | Bosch Repair → |
Need same-day refrigerator repair Kerrville TX? Call (830) 532-2188 — we carry parts for every brand on every truck.