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Refrigerator Not Cooling: Causes & Fixes

The cabinet is warm but the light still comes on.

The cheapest explanation first: the refrigerator has a cooling mode that can be switched off while the lights and the display keep working. Samsung calls it Cooling Off Mode and shows OF OF or scrolling bars; Whirlpool calls it showroom or demo mode, used when the unit is on display in a store.

Before you work on your refrigerator

  • Power: Unplug the refrigerator or switch off its circuit breaker before removing panels or touching wiring.
  • Water: Turn off the water supply valve before disconnecting hoses or the inlet valve.
  • Heat: Water and the heating element can be hot right after a cycle; let the refrigerator cool first.
  • Sharp debris: Wear gloves when reaching into the filter or sump; broken glass often collects there.
  • Stop: If you smell burning, see smoke or sparks, or find water near wiring, switch off the breaker and call a technician.
  • The circuit breaker keeps tripping: If the breaker or fuse that feeds the refrigerator trips again as soon as you reset it, leave it off. Repeated tripping reports a fault in the circuit or the appliance, not a cooling problem. Do not keep resetting it, and never tape or wedge a breaker on.
  • Mains wiring, the power cord, or the outlet is involved: Work on the refrigerator's power cord, its outlet, the house circuit, or the wiring behind the back panel is not a do-it-yourself repair. Do not cut back a damaged cord, bypass a control board, or run the refrigerator from an extension lead as a workaround.
  • The sealed refrigerant system is involved: The compressor, the condenser and evaporator tubing, the filter drier and the refrigerant inside them are a sealed pressurised system. Do not cut, braze, puncture, vent or top up any refrigerant line, and do not buy a can of refrigerant to recharge a refrigerator. Federal law requires certification to open that circuit.
  • Disconnect power before cleaning the coils or removing a panel: Unplug the refrigerator or switch off its circuit breaker before you remove the base grille, clean the condenser coils, pull the refrigerator out, or take off any interior or rear panel. Plug it back in only once every grille and panel is secured.
  • A refrigerator is heavy: pull it straight out, do not walk it: A full-size refrigerator is heavy and top-loaded, and it can tip or damage the floor if it is rocked. Empty the doors first, get a second person, cover the floor, and pull it straight out rather than wiggling or walking it from corner to corner.
  • Condenser fins bend and dust flies when you clean the coils: Condenser fins and tubing are thin metal that bends and cuts easily, and vacuuming a dusty coil throws debris upward. Wear safety glasses, use a soft brush rather than anything rigid, and do not force a nozzle between the fins.

Why your refrigerator is not cooling

  1. Evaporator fan failed (fridge warm, freezer still cold): This is the single most useful distinction on this page: a fridge that is warm while the freezer stays cold is usually an air-movement fault, not a refrigeration fault. iFixit describes the evaporator fan circulating air from the cooling coils into both compartments, and a failed fan as no longer moving cold air into the refrigerator. Difficulty 3/5.
  2. Air vents blocked by food, bulky containers or frost: Most refrigerators make all their cold in the freezer and blow it into the fresh food section through vents, so a packed fridge can starve itself. Whirlpool describes the return air vents being blocked by bulky items as breaking the cycle and warming the refrigerator compartment; GE singles out large containers at the back. Difficulty 1/5. Part cost no parts needed.
  3. Defrost system failed and the evaporator has frosted over: Look at the vents themselves, not just the food in front of them. Samsung has you check the openings on the back wall of the refrigerator for ice or frost and clear anything you find; frost across the vents blocks the same airflow that bulky containers do, and it also points at the defrost system. Difficulty 3/5.
  4. Condenser coils clogged with dust, grease or pet hair: Dirty condenser coils are the classic fridge-not-cooling cause, but the manufacturers are more measured about it than the internet is. Whirlpool says routine cleaning is not typically needed in a normal home, and GE says most refrigerators made since 2001 have their coils where they do not need cleaning at all. Difficulty 2/5. Part cost no parts needed.
  5. Door not sealing, left ajar, or an interior light staying on: A door that does not seal loses cold air continuously, and there are two tells beyond the obvious one. GE points out that an interior light which stays on with the door closed is itself producing heat inside the cabinet, and that gaskets split or stop sealing with age; Whirlpool notes the cabinet warms when doors are opened often or for long periods. Difficulty 2/5. Part cost replacement gasket (estimate).
  6. Room too hot or too cold, or no clearance around the cabinet: Where the refrigerator stands changes whether it can cool at all, which is why garage installations fail in winter as well as in summer. Whirlpool specifies 55 to 110 degrees Fahrenheit for indoor household use; GE gives a similar range and says the unit may not cool properly below 60 or above 110. Difficulty 2/5. Part cost no parts needed.
  7. No power reaching the refrigerator (plug, outlet or breaker): If nothing at all is running, check that the refrigerator still has power before you suspect the cooling system. GE's first diagnostic step is the interior light: no light in the fresh food section points at the plug, the outlet or the breaker rather than at the appliance. Difficulty 1/5. Part cost no parts needed.
  8. Condenser fan seized or failed: Clean coils still cannot shed heat if nothing is blowing over them. iFixit describes the condenser fan as drawing air over the compressor and through the condenser coils, and a fan motor that is not working normally as a reason the fridge will not cool properly. Difficulty 3/5.
  9. Temperature controls set too warm: Temperature controls leave the factory on a mid setting that suits a normal household, and Whirlpool's test of a correct setting is simply whether drinks are as cold as you want them. The trap is impatience: wait at least 24 hours between adjustments before rechecking, or you will chase the setting up and down. Difficulty 1/5. Part cost no parts needed.
  10. Cooling Off, showroom or demo mode is switched on: The cheapest explanation first: the refrigerator has a cooling mode that can be switched off while the lights and the display keep working. Samsung calls it Cooling Off Mode and shows OF OF or scrolling bars; Whirlpool calls it showroom or demo mode, used when the unit is on display in a store. Difficulty 1/5. Part cost no parts needed.
  11. Recently installed or recently plugged back in and still cooling down: A refrigerator that was only just installed or only just plugged back in has not failed; it has not finished cooling down. Whirlpool and GE both give it 24 hours before the temperature means anything. Difficulty 1/5. Part cost no parts needed.
  12. Sealed system fault: lost refrigerant charge or a failed compressor: Where the do-it-yourself path ends: the refrigerant circuit. iFixit sends compressor and coolant work to a service technician, and EPA regulations under Section 608 of the Clean Air Act require certification for anyone who adds or removes refrigerant from an appliance. A can of refrigerant and a piercing valve is not a repair a consumer may legally carry out. Difficulty 5/5.
  13. Damper or air diffuser stuck closed: On a single-evaporator refrigerator there is a moving flap deciding how much cold air the fresh food side gets. iFixit describes the damper as the device controlling the flow of cold air from the freezer compartment to the fresh food compartment, which makes a stuck or broken damper another way to get a warm fridge and a cold freezer. Difficulty 3/5.
  14. Nothing is wrong: a defrost cycle or a post-outage compressor delay: A refrigerator that looks dead may simply be defrosting. GE documents that the compressor and the fans do not run during the defrost cycle, that the cycle can last 30 to 45 minutes depending on the model, and that it happens once or twice a day. Difficulty 1/5. Part cost no parts needed.
  15. The refrigerator itself was switched off and not switched back on: Related but not the same thing: the refrigerator itself can be switched off. Whirlpool documents that some models have to be turned back on by hand after a power outage or surge, and that the cooling function can be switched off accidentally during cleaning. Difficulty 1/5. Part cost no parts needed.
  16. Compressor start relay failed, so the compressor never starts: If the compressor never starts, a small relay on its side is a candidate before the compressor itself. iFixit describes the start relay as providing power to the run winding and the start winding for a split second at startup to get the compressor going. Difficulty 3/5.
  17. A large warm load was just put in: A shop or a party load warms the cabinet on its own. Whirlpool notes that adding a large amount of food or drink warms the refrigerator or freezer, and that it can take several hours for the temperature to settle again afterwards. Difficulty 1/5. Part cost no parts needed.

Find the cause for your refrigerator

Before anything else: do you smell burning or hot plastic near the refrigerator, see smoke or sparking, or find a scorched power cord or outlet?

Step-by-step checks for a refrigerator not cooling

Read the display for Cooling Off, showroom or demo mode

About 3 minutes

  1. Look at the control panel for OF OF, O FF, OFF OFF, scrolling temperature bars, or the word Showroom or Demo.
  2. If any of those are showing, the refrigerator is in a mode that deliberately does not cool.
  3. Follow the Owner's Manual for your model to leave the mode; the button combination varies.

Look for ice built up on the freezer wall

About 10 minutes

  1. Empty enough of the freezer to see its back wall.
  2. Look for a sheet or crust of ice on the wall or over the rear panel.
  3. On a frost-free model that ice should not be there, and it means the defrost system is not clearing the evaporator.

Check whether the freezer is still cold

About 2 minutes

  1. Open the freezer and check whether ice cream and frozen food are still properly frozen.
  2. A cold freezer with a warm fridge points at air movement between the two compartments.
  3. Both compartments warm points at the cooling system itself or at power, controls or mode.

Open the door and look for the interior light

About 2 minutes

  1. Open the fresh food door and look for the interior light.
  2. If there is no light, check that the plug is fully in the outlet and that the outlet has power.
  3. If there is light, the refrigerator has power; the fault is in the controls or the cooling system.

Check the room temperature and the clearance around the cabinet

About 5 minutes

  1. Check the room temperature where the refrigerator stands: a garage, porch or unheated outbuilding is often outside the 55-110°F range it is designed for.
  2. Check there is at least one inch of clear air on each side, above and behind the cabinet.
  3. Check it is not pressed against an oven, a radiator, or a sunlit wall.

Check where the temperature controls are actually set

About 3 minutes

  1. Read the set temperature or dial position for both compartments.
  2. If it has been moved off the factory mid setting, put it back.
  3. Change it by one step at a time and wait at least 24 hours before rechecking.

Clear the vents and look for frost across them

About 10 minutes

  1. Find the vents on the back wall of the fresh food section and in the freezer.
  2. Move bulky containers and packed food away from them and leave gaps between items.
  3. Check whether the vent openings are covered in ice or frost, and clear anything you find.

The banknote test on the door seal

About 5 minutes

  1. Put a banknote halfway into the door opening and close the door on it.
  2. Pull the note out. Slight resistance means the gasket is gripping there.
  3. Repeat at several points around each door; a note that slides out freely marks a section that is not sealing.
  4. Also check that the interior light goes out when the door closes.

Power the refrigerator down and back up once

About 5 minutes

  1. Unplug the refrigerator or switch off its circuit breaker.
  2. Wait two minutes, then restore power.
  3. Leave it about three hours before judging whether the temperature is coming down.

Look at the condenser coils behind the base grille

About 15 minutes

  1. Unplug the refrigerator or switch off its circuit breaker.
  2. Check the Use and Care Guide first: some models have sealed coils that must not be cleaned by the owner.
  3. Remove the base grille at the bottom of the cabinet and look at the coils behind it.
  4. A thick mat of dust, grease or pet hair means they need cleaning; bare metal fins mean they do not.

Check the condenser fan turns freely

About 10 minutes

  1. Unplug the refrigerator or switch off its circuit breaker.
  2. With the base grille or rear access panel off, find the fan next to the compressor.
  3. Turn the blade by hand. It should spin freely; a blade that binds or will not turn means the motor has failed.

How to fix a refrigerator not cooling

Give a newly installed refrigerator its full cool-down time

About 60 minutes · Difficulty 1/5

  1. Allow 24 hours from switch-on before judging the temperature.
  2. On a Samsung, allow up to 4 hours for the panel to show the set temperature and up to 28 hours for the cabinet to reach it.
  3. Keep the doors shut during that period and do not keep adjusting the controls.

Clear the air vents and repack the shelves

About 20 minutes · Difficulty 1/5

  1. Move bulky containers away from the back wall of the fresh food section and from the freezer vents.
  2. Leave gaps between containers and do not stack items to the roof of a shelf.
  3. Clear any ice or frost covering the vent openings.
  4. Allow several hours for the temperature to recover before judging the result.

Take the refrigerator out of Cooling Off, showroom or demo mode

About 5 minutes · Difficulty 1/5

  1. Find the mode indicator on the display (OF OF, O FF, OFF OFF, scrolling bars, Showroom or Demo).
  2. Use the button combination in your Owner's Manual to leave the mode; it varies by model and brand.
  3. Confirm the display returns to a set temperature, then allow the cabinet time to cool down.

Restore power to the refrigerator

About 10 minutes · Difficulty 1/5

  1. Push the plug fully into the outlet.
  2. Check the circuit breaker or fuse for that outlet and reset it once if it has tripped.
  3. If the breaker trips again as soon as you reset it, leave it off and stop: that is an electrical fault, not a cooling fault.
  4. Do not run the refrigerator from an extension lead as a workaround.

Put the temperature controls back to a working setting

About 5 minutes · Difficulty 1/5

  1. Return the controls to the factory mid setting, or set the fridge and freezer to the temperatures in your Owner's Manual.
  2. Change them one step at a time.
  3. Wait at least 24 hours between adjustments, then recheck: drinks as cold as you want them is the manufacturer's own test of a correct setting.

Switch the cooling function back on

About 5 minutes · Difficulty 1/5

  1. Check the control panel for a cooling or power control that has been switched off.
  2. Switch it back on, following the Owner's Manual for your model.
  3. If this followed a power cut or a surge, expect to have to do it by hand; some models do not restart cooling on their own.

Give the cabinet time after a large warm load

About 60 minutes · Difficulty 1/5

  1. If a shop or party load has just gone in, allow several hours for the temperature to settle.
  2. Spread warm items out rather than stacking them against the vents.
  3. Keep the doors closed while it recovers.

Wait: the refrigerator is defrosting or recovering from a power cut

About 45 minutes · Difficulty 1/5

  1. If the compressor and fans are silent, wait up to 45 minutes; a defrost cycle can run that long once or twice a day.
  2. If the power was recently interrupted, leave it alone: the compressor overload holds the compressor off until the refrigerant system equalises, then it starts on its own.
  3. Do not unplug and replug it repeatedly to force a restart.

Clean the condenser coils

About 30 minutes · Difficulty 2/5

  1. Unplug the refrigerator or switch off its circuit breaker.
  2. Check the Use and Care Guide: some models do not need it and some may only be cleaned by a technician.
  3. Remove the base grille at the bottom of the cabinet.
  4. Vacuum the grille, the open space behind it and the front face of the condenser with a soft brush, without bending the fins or tubing.
  5. Leave the ice and water lines alone.
  6. Refit the grille so it clips home, then restore power.

Give the refrigerator the room and the temperature it is rated for

About 30 minutes · Difficulty 2/5

  1. Move stored items away from the sides, top and back so there is at least one inch of clear air.
  2. Move the refrigerator away from an oven, radiator or sunlit wall if it is next to one.
  3. If it stands in a garage or outbuilding outside 55-110°F, either heat the space or accept that a standard refrigerator is not rated for it; some manufacturers sell garage-rated models.
  4. Remember that a compressor running most of the time in a warm room can be normal, not a fault.

Clean or replace the door gasket, and check the door closes fully

About 45 minutes · Difficulty 2/5

  1. Wash the gasket and the frame it seals against with warm water and a little dish soap, then dry them.
  2. Repeat the banknote test around both doors.
  3. Check nothing (a shelf, a bottle, a drawer) is holding the door open, and that the interior light goes out when the door shuts.
  4. If a section of gasket is torn, split or permanently deformed, order the replacement gasket for your model number and fit it.

When to call a technician about a refrigerator not cooling

  • Have the condenser fan motor replaced
  • Have the damper checked
  • Have the defrost system repaired (and defrost the cabinet meanwhile)
  • Have the evaporator fan diagnosed and replaced
  • Have the compressor start relay tested
  • Sealed system fault: book an EPA Section 608 certified technician

Sources

  1. Ice on Freezer Wall, GE Appliances (retrieved 2026-09-22)
  2. Refrigerator - Not Cooling Enough, GE Appliances (retrieved 2026-09-22)
  3. Refrigerator - Does Not Run or Cool, GE Appliances (retrieved 2026-09-22)
  4. GE Appliance - Circuit Breaker Trips, GE Appliances (retrieved 2026-09-21)
  5. Fridge Not Cooling But Freezer Works - iFixit Troubleshooting, iFixit (retrieved 2026-09-22)
  6. Refrigerator Not Cooling - iFixit Troubleshooting, iFixit (retrieved 2026-09-22)
  7. Cooling issues with Samsung refrigerator or freezer, Samsung Electronics America (retrieved 2026-09-22)
  8. Galanz Americas Recalls Retro Refrigerators Due to Risk of Serious Injury or Death from Fire and Burn Hazards; One Death Reported, U.S. Consumer Product Safety Commission (retrieved 2026-09-22)
  9. Section 608 Technician Certification Requirements, U.S. Environmental Protection Agency (retrieved 2026-09-22)
  10. Proper All Refrigerator Moving Care, Whirlpool Corporation (retrieved 2026-09-22)
  11. Not Cooling - Both Sections - Refrigerator, Whirlpool Corporation (retrieved 2026-09-22)
  12. How and When to Safely Clean the Condenser Coils, Whirlpool Corporation (retrieved 2026-09-22)

Last updated September 29, 2026 · facts last verified September 22, 2026 · How we source and verify

Guidance only; follow your appliance manual and local codes. If anything looks unsafe, stop and call a qualified technician. Safety disclaimer