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Next Century GadgetryAppliance repair, Farmington, NMAnswered any hour(505) 551-9065

Fridge stopped cooling? Safe checks to make before you call

A warm refrigerator gets attention fast, and the cause isn't always a failed part. A few safe checks take about fifteen minutes, protect your food, and tell you whether you need a tech or just a better spot for the milk jug.

By Dewey Haverty, Appliance Care EditorUpdated

Quick answer

When a refrigerator stops cooling, confirm it has power and the breaker or GFCI hasn't tripped, check the temperature setting, close the doors fully and inspect the gaskets, clear blocked vents, vacuum dusty condenser coils and listen for the condenser fan. Frost on the freezer's back wall or a compressor that clicks without running points to a failed part. Keep the doors closed and call us.

Is the refrigerator getting power at all?

Start with the obvious, because it catches more people than you'd think. Open the door. If the light is out and the control panel is dark, the problem is power. Check that the plug is fully seated, then look at the breaker panel and at any GFCI outlet nearby, since garage and kitchen-island outlets are often on one. A breaker that trips again right away is a sign to stop and call.

If the light works but nothing cools, the power is fine and the trouble lies in the cooling side. One odd case: some models have a demo or showroom mode that keeps the lights and display working while the compressor never runs. If your display shows a demo or cooling-off message, the owner's manual explains how to clear it.

Check the thermostat setting and the doors

Temperature dials get bumped while groceries are loaded, and touch controls get pressed by elbows. A fresh food section should sit around 37 degrees and a freezer around 0. Put a cheap thermometer in a glass of water on the middle shelf and read it after a few hours, since that tells you the real temperature better than the display.

Next look at the doors. A door left a crack open overnight lets warm air pour in, and the freezer can frost up while the fridge warms. Overstuffed door bins, a crisper drawer pulled out of its track, or a cabinet that leans forward can keep a door from sealing. Slide a dollar bill into the gasket and close the door on it. If it pulls out with no drag, that spot isn't sealing.

  • Wipe gaskets with warm soapy water, since dried spills stop them from sealing
  • Look for torn, flattened or twisted gasket corners
  • Raise the front leveling legs slightly so the doors swing closed on their own

Look for blocked vents inside the cabinet

In most top-freezer and bottom-freezer refrigerators, one evaporator behind the freezer wall does all the cooling, and a fan pushes part of that air through a vent into the fresh food section. A bag of frozen vegetables shoved against the freezer vent or a tall jug pressed against the air outlet in the fridge can cut that flow. Rearrange the shelves so the vents along the back wall and ceiling have a few inches of clear space.

Some models use a motorized or manual damper to meter that air. If the damper sticks closed or ices up, the fridge warms while the freezer stays cold. That one usually needs a tech, but clearing the vents first rules out the easy cause.

Clean dusty condenser coils and check the fan

The condenser coils shed the heat pulled out of your food. In Farmington, windy days blow fine dust under doors and into kitchens, and it settles right on those coils. On most newer models they sit under the fridge behind the toe grille. On older ones they cover the back. Unplug the fridge first, then use a coil brush and a vacuum to clear the dust and pet hair.

Many fridges with coils underneath also have a condenser fan near the compressor at the back. With the fridge plugged back in and the compressor running, you should hear the fan and feel warm air coming out at the bottom. If the compressor hums but the fan is still, a jammed blade or a dead fan motor is likely, and the compressor will soon overheat.

Frost on the back panel usually means defrost trouble

Open the freezer and look at the rear wall. A thin dusting of frost is normal. A thick white sheet, or frost growing through the vent slots, points to a defrost failure. Behind that panel sits the evaporator coil, and a frost-free fridge melts it clean several times a day with a defrost heater, a defrost thermostat or sensor, and a timer or control board. When one of those fails, ice chokes the coil and the evaporator fan can no longer move cold air.

A temporary fix confirms it. Empty the fridge into coolers, unplug it, prop the doors and let the ice melt onto towels for most of a day. If cooling comes back and then fades again over a week or two, the defrost system is the cause. A scraping or chirping sound from behind the panel can also mean the evaporator fan blade is hitting ice.

A clicking compressor and other signs to stop and call

Listen near the compressor at the back bottom of the fridge. A click, a brief hum, then another click a few minutes later usually means the compressor keeps attempting to start and giving up. The start relay on the side of the compressor is a common culprit, though a compressor near the end of its life sounds much the same. Don't keep unplugging and replugging it, since each try heats the compressor further.

Some problems are past the homeowner checks. Our tech tests the relay, fans, defrost parts and sealed system before replacing anything, so stop and call us if you notice any of these.

  • A burning smell, a scorched outlet or a breaker that trips again right away
  • An oily residue on tubing or on the floor near the compressor
  • Heavy frost coming back after a manual defrost
  • A compressor that is hot to the touch but not running
  • Water pooling under the fridge along with the warm-up

How long food stays safe while you wait

Keep the doors shut as much as you can. Food safety guidance generally says a closed refrigerator keeps food cold for about four hours, and a full freezer holds for about two days, a half-full one closer to one. Perishables that have sat above 40 degrees for more than two hours should go. When in doubt, a thermometer reading beats guessing.

Move milk, meat and medicine to a cooler with ice or to a neighbor's fridge if the repair can't happen soon. Our phones are answered 24/7. If a freezer packed with meat has quit, we'll send a tech at any hour, and a fridge that's only running warm gets a same-day slot when our schedule has room.

Questions readers ask us

What does it mean if my refrigerator stopped cooling but the light still works?

Power is reaching the fridge, so the fault lies in the cooling side. Common causes are dusty condenser coils, a failed condenser or evaporator fan, a defrost failure that iced over the coil, or a bad start relay. Some models also have a demo mode that runs the lights without the compressor.

Will unplugging a refrigerator that stopped cooling reset it?

Sometimes a power reset clears a confused control board, and a full unplugged defrost can bring cooling back for a while if the coil was iced. If cooling fades again, though, a part has failed. Don't cycle power over and over on a clicking compressor, since that overheats it.

How do I tell if a refrigerator condenser fan has stopped?

With the fridge running, kneel by the toe grille or pull the fridge out and look at the back near the compressor. You should hear a fan and feel warm air. If the compressor hums and the fan blade sits still, the motor may be dead or something may be jamming the blade.

Why is there frost on the back wall of my freezer when the fridge won't cool?

That pattern usually means the automatic defrost isn't working. Ice builds over the evaporator coil until air can't pass through, and the fresh food side warms first. The defrost heater, defrost thermostat or sensor, or the control that runs them is the usual fix. We test each part before replacing anything.

Rather have a tech look at it?

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