How to Reset a Freezer: Clear Glitches Fast

Quick Answer

To reset most freezers, unplug the unit for 10 to 15 minutes to allow the control board capacitors to fully discharge, then plug it back in. For models with digital displays, you can often press and hold the 'Alarm' and 'Freezer' buttons simultaneously for 5 to 10 seconds to trigger a software reboot.

Resetting your freezer is basically the first thing I do on almost every service call because it clears ghost errors that stop the compressor dead in its tracks. Ignore a glitchy control board and you're looking at spoiled food or a big repair bill for a part that just needed a simple reboot. Honestly, most of the time a 15-minute unplug fixes it completely.

GenericRefrigeratorDifficulty:

How to Reset Your Generic Refrigerator

You won't need any special tools for this, just patience while the board drains down. I tell people to budget about 20 minutes start to finish, and that's being generous. It's a smart first move after any power outage, or whenever your temp display starts showing numbers that make zero sense.

Common Causes

A power surge or brownout scrambled the control board's memory and now it's stuck in a fault state even though the hardware is completely fine.
The display is showing dashes or frozen on a number because the board lost communication with a temperature sensor, and a reboot re-establishes that connection instantly.
Someone left the door open too long or the unit ran a long defrost cycle and now the control logic thinks there's a failure when there really isn't one.
A recent power outage tripped an internal relay and left the compressor locked out even after power came back on, which is way more common than people think.
The freezer was just moved or transported and the control board needs a fresh boot to re-initialize all the sensors and fans in the new location.

Symptoms You May Notice

The display shows dashes, random numbers, or goes completely blank with no obvious reason why.
Freezer isn't cooling at all even though it's plugged in and you can hear fans running somewhere inside.
An error code or alarm light is flashing but nothing seems actually broken when you look around.
Compressor won't kick on, like there's just silence back there when you put your hand near the bottom of the unit.
Temperature reading is way off from what you set, maybe 15 or 20 degrees warmer than it should be and climbing.

Tools Required for Diagnosis

FlashlightPhillips #2 screwdriver (if plug is behind an access panel)Phone or kitchen timer (to track the full 15-minute wait)

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

Frequently Asked Questions

Does resetting the freezer fix a clicking sound?

Usually no. Clicking is almost always a hardware thing, like a worn start relay or a compressor that's struggling to start up. A reset might clear whatever error code showed up because of it, but the clicking's gonna come back because the underlying part is failing. The start relay is like a $15 part and pretty easy to swap yourself. I'd check that first before assuming it's the compressor, because a new compressor is a completely different conversation money-wise.

Will I lose my food if I unplug it for 15 minutes?

Not even close. A freezer with the door shut holds safe temps for 4 to 6 hours without power, sometimes longer depending on how packed it is. Fifteen minutes isn't going to move the needle at all. Just don't stand there opening the door to check on things because that's actually what lets the cold out. Leave it closed and you're totally fine.

How often should I reset my freezer?

Don't put it on a schedule, that's not a real thing. Just do it when something's actually wrong, like after a power outage, when an error code shows up, or when the display starts acting glitchy. I've had customers who unplug their freezer every month 'for maintenance' and honestly it doesn't help anything. Just let it run. These things are designed to run continuously for years.

What if the reset doesn't clear the error code?

If the code comes right back after a proper 15-minute hard reset, the board is picking up a real hardware problem. Could be a bad thermistor, a failed defrost heater, a stuck defrost thermostat, or even a refrigerant issue. The specific error code that's showing will point you toward which component to test next. At that point you're moving from a reset into actual diagnostics and probably ordering a part.

Is there a difference between unplugging and using the breaker?

Electrically, no, same result either way. The board loses power and resets. I personally prefer unplugging because it's easier to confirm the power is actually off, but if the freezer is buried in cabinetry and you can't reach the cord, the breaker works just as well. Just make sure you're flipping the right breaker. Some panels are mislabeled and you'll think you killed power to the fridge when you actually just turned off the garbage disposal.

My freezer reset but now the display shows the wrong temperature. Is something broken?

That's actually normal. Most control boards reset to factory defaults after a hard power cycle, so your temp setting might have jumped to 10 or 15 degrees instead of 0. Just go in and set it back to 0F manually. Then give it a full 24 hours to pull back down to that temp before you worry about anything. The internal probe readings will catch up. If it's still reading way off after 24 hours, then yeah, you're probably looking at a bad thermistor.

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 17, 2026