Freezer Not Freezing? 6 Signs It Needs Repair

A freezer not freezing is easy to spot when ice cream turns soft, but the earlier signs are quieter. This article covers six signs that a freezer needs repair, the fixes worth trying first, how to tell a simple fault from a compressor or sealed system problem, and how long your food stays safe while you decide.

The target is 0F, and any freezer not freezing to that level needs attention. At that temperature food keeps its quality and stays safe. Anything above 10F means the unit is failing, and when it climbs past 20F you are running a clock on everything inside. Do not trust the dial. Put a thermometer in the middle of the freezer and read it a few times before you decide anything.

Six signs of a freezer not freezing

These signs of a freezer not freezing are listed roughly in the order they appear as a freezer fails. One sign on its own is often minor. Several together mean it is time for a repair.

1. Frost buildup that keeps coming back. A manual-defrost freezer collects frost slowly and needs defrosting. A frost-free model should not. Heavy frost on the back wall or vents points to a failed defrost heater, thermostat or control board, or a leaking door seal.
2. Soft ice cream and food that is only half frozen. If items feel tacky or ice cubes stick together, the freezer is above 10F even if it still looks cold.
3. The compressor runs constantly or cycles oddly. A compressor that rarely stops is working too hard, usually from dirty coils, a bad seal or a failing fan. A compressor that clicks on and off without running is a start relay or compressor problem.
4. Warm sides or a hot back. The cabinet sides carry heat from the condenser. If they are noticeably hotter than normal, heat is not escaping, and the freezer will struggle to hold temperature.
5. A fridge that is warm as well as a freezer that is soft. Both compartments failing points to the sealed system or to a main control failure, since a single fan or defrost fault usually spares one side.
6. Leaks and wet spots. Water under or inside the freezer is a sign of a clogged defrost drain or a door seal failure, and in time it becomes a warm-food problem too.

What to try when you have a freezer not freezing

If you have a freezer not freezing, these steps cost nothing and rule out the usual causes. Unplug the unit before any of them that involve panels or the back of the cabinet.

• Set the control to the coldest recommended setting and wait twelve hours.
• Check that the door closes fully and that items are not holding it open. Do the paper test on the gasket and wipe it clean.
• Vacuum the condenser coils and the area around the fan.
• Defrost a manual freezer by unplugging it and keeping towels under it. Never chip ice with a knife or screwdriver.
• Rearrange items so that the vents are clear. Do not pack the freezer so tight that air cannot move.

Fixes for a freezer not freezing, and where they stop

In a freezer not freezing, a thermostat or temperature sensor sometimes fails and gives a false reading. You can test the control by turning it to a different setting and listening for the compressor to start, but do not test the thermostat leads yourself with the unit powered. Do not bypass a defrost thermostat or a limit fuse to see if the freezer cools. Those parts are there to stop overheating.

If the freezer not freezing issue clears after cleaning the coils or the seal, give it a full day. If it holds temperature, you have solved the problem. If it does not, or if it works for a while and then fails again, the fault is probably in the defrost system, the fan or the sealed system.

When a freezer not freezing is the compressor or sealed system

The compressor and the refrigerant circuit are sealed. Signs that you are in this territory are a compressor that hums but does not start, a freezer that never cools below the mid-20s, a hot compressor housing with no cooling, or a faint oily residue on the tubing. Refrigerant work and compressor replacement are for a technician with the right equipment. A sealed-system repair on an older freezer needs a hard look at the age and value of the unit. The repair or replace calculator is a reasonable first step.

What you will pay depends on the fault, the part and the brand. Smaller repairs include a gasket, a fan or a relay, and they are often worth doing even on an older unit when the cabinet is otherwise sound. Because we often carry common parts on the service vehicle, many of these jobs are finished on the same day. More expensive repairs involve the sealed system. We quote the repair price after the technician has looked at the unit.

Food safety with a freezer not freezing

Keep the door shut as much as you can. A full freezer holds its temperature for about 48 hours and a half-full one for about 24, according to FDA guidance on storing food safely. Group food together, since a dense mass stays cold longer, and move it to a working freezer or a cooler with ice if you can. Throw out any food that has been above 40F for more than two hours, and never refreeze meat that has fully thawed and sat warm.

A freezer not freezing is also an opportunity to lighten the load: eat or cook what has thawed, and clean out old items so air can move once the unit is fixed.

Stop and call

Book a repair when your freezer not freezing shows any of these.

• The compressor hums, clicks or stays silent while the light works.
• Frost returns within two weeks of a defrost.
• The freezer is above 10F after the coils are clean and the seal is tight.
• You smell burning, see scorched wiring or hear a loud buzzing.
• Water is dripping near the power cord or the outlet; switch off the breaker before you go near it.

Our refrigerator repair and freezer service covers the brands in our brand list, and our technician visits homes in West Sacramento and Sacramento. To keep a repaired freezer healthy, see our freezer maintenance guide.

If you would like us to take a look, you can book a visit online; our service call is $80, and the repair price is quoted once the technician has seen the freezer.

Common questions

How long does food last in a freezer that has stopped working?

A full freezer keeps food safe for about 48 hours if the door stays shut, and a half-full one for about 24 hours. Food with ice crystals still on it can be refrozen. Throw out anything that has warmed above 40F.

Why is there frost on my frost-free freezer?

A frost-free freezer should stay clear of heavy frost. Ice on the back wall or around the vents usually means the defrost heater, sensor or control has failed, or the door seal is letting in humid air that freezes on the coil.

Can I fix a freezer that is only slightly warm myself?

Often yes. Clean the coils, check the seal, clear the vents and set the temperature to 0F. If it is still above 10F after a day, or the compressor hums and clicks, stop and book a repair.