
A quick recap, the 3 possible reasons your freezer may feel hot on the outside are:
- Adding a lot of room-temperature food at once, causes the freezer to work hard for a long time.
- Constant use of opening and closing the freezer. Letting cool air out and warm air in causes the freezer to work hard.
- Using the freezer after disuse or for the first time. It takes a lot of power to get the temperature down.
Why is my compressor hotter than normal?
Why does my fridge overheat?
How to fix a fridge compressor that is running hot?
Why is my fridge compressor hot?
What is a temperature thermostat?
What happens when a condenser fan stops working?
What happens if the thermostat fails on a compressor?
See 2 more

What causes a freezer compressor to overheat?
There are several reasons for a compressor to run too hot, including high compression ratio, high return gas temperatures, and lack of external cooling. High compression ratios are the result of either lower than normal suction pressures or higher than normal discharge pressures.
How do you cool down an overheated compressor?
1:231:45How To Cool Down Overheated Compressor (EASY!) - YouTubeYouTubeStart of suggested clipEnd of suggested clipPlease subscribe.MorePlease subscribe.
Why would a compressor be hot?
When an air compressor overheats, the problem is typically related to factors involving irregular suction or discharge pressure. Alternately, the problem could stem from insufficient ventilation, eroded oil or any given number of issues related to the wear and tear of machine parts.
Should a refrigerator compressor be hot?
Your refrigerator compressor should be warm, but it should never be so hot that you can feel the heat more than a foot away. Compressors also need lubricant to function correctly.
What happens if compressor overheats?
Many refrigeration compressors break down simply because they overheat. There are two main reasons why overheating can have such a devastating effect on compressors: Loss of the lubricating properties of the refrigeration oils. Chemical decomposition of the refrigerants and/or oils, which can occur suddenly.
Can a compressor get too hot?
The most common cause of an air compressor shutting down is overheating. As temperatures rise, air compressors are especially prone to overheating. This is partly due to an increase in the amount of water vapor in the air. Heat and moisture combined can spell trouble any piece of machinery.
Should a freezer compressor be hot to the touch?
As the process of the compressor heating up is a normal step in the process of cooling down a fridge you should expect it to get warm, but not scalding hot.
What are the signs of a faulty compressor?
6 Warning Signs that Your AC Compressor is FailingStrange Noises. The compressor is located in the air conditioning unit placed outside the home and is usually quiet. ... Leaking Fluid. ... Higher than Normal Electric Bill. ... Less Powerful Airflow. ... Warmer Airflow. ... Outdoor Unit Is Overheating.
How do you know if your refrigerator compressor is bad?
How to Tell if Refrigerator Compressor Is BadThe compressor starts making an unusual or loud noise when running.The compressor turns on and off too frequently.The compressor turns off prematurely.The refrigerator is not cooling.The compressor overheats.Your electricity bills are too high.
How do I reset my freezer compressor?
So your fridge is having internal problems, and you need to reset its compressor?...4 steps to reset a refrigerator compressorUnplug your refrigerator. ... Turn off the refrigerator and freezer from the control panel. ... Reset your freezer and fridge temperature settings. ... Wait for the refrigerator temperature to stabilize.
How do you know if your refrigerator is overheating?
The back of a refrigerator should feel warmer than the front because that's where the motor is located, but if it feels hot to the touch, that can be a sign of malfunctioning. Several problems can cause overheating, such as a dirty condenser or issues with the coils or ventilation system.
Should the compressor on a refrigerator be cold?
the compressor should be warm or hot, and it should vibrate. If the refrigerator is warm, and the compressor is cold, you could have a problem with the components that are used to start the compressor.
Why do you need to clean the coils on a refrigerator?
Regularly cleaning the coils on your refrigerator can stop a compressor from overheating. Every now and again, you may find your fridge is not cooling as well as it should, but cleaning your coils can get things moving again. Cleaning the coils helps to eliminate excess dust and pet hair, which could be interfering with the fridge’s ability to maintain its temperature.
What to do if fridge compressor is running hot?
If your fridge compressor is running hot, you should look into replacing the thermostat before replacing the entire unit. If you’re the handy type, you could purchase the thermostat online. If you are not so handy, contact a local refrigerator technician.
Why is my refrigerator overheating?
An overheated refrigerator can lead to premature failure of the compressor — which is expensive to repair or replace. Check the air filter often, clean the condenser coils, and vacuum out any debris that has accumulated in your fridge to avoid unnecessary repair costs.
What happens if the thermostat on a refrigerator fails?
If the refrigerator temperature thermostat fails, it’ll keep the compressor running even when it doesn’t have to. As a result, it’ll overheat and eventually burn out.
What happens if your refrigerator is too cold?
If the inside of your refrigerator is colder than 35 degrees Fahrenheit, you risk overworking your refrigerator compressor and potentially having it overheat. If it’s warmer than 40 degrees F, there’s a chance that you’ll promote bacterial growth on your leftovers — making them potentially unsafe to eat.
Why is my refrigerator so hot?
When a refrigerator becomes too hot, it’s usually because the compressor is overheating. In many cases, this is due to a cooling system malfunction. Although some issues can be resolved on your own, any damage caused by a clogged condenser coil or faulty fan motor may require a professional repair. If your air conditioner is running correctly and you have ruled out a problem with the temperature settings, contact a local HVAC contractor for diagnosis and repair.
Why is my refrigerator compressor hot?
The reason your refrigerator compressor is hot could be because there’s a lack of refrigerant, the temperature inside the unit is low, or a faulty sensor. Additionally, if your refrigerator is showing signs of a clogged compressor, it’s either a problem in the condenser coils or in the internal temperature setting.
Is It Dangerous When Your Refrigerator Compressor is Too Hot?
For instance, if the compressor is so hot that it has caused scorch marks to form on the wall behind your appliance, you need to disconnect the power source immediately. This presents a major fire hazard and is a dangerous to you, your family, and your home.
What Makes a Refrigerator Compressor Overheat?
When a refrigerator stops working, it is most likely due to an overheated compressor. Several factors could be responsible for an overheated compressor. This guide will help you to determine whether you can fix your overheating compressor on your own and when to contact a professional.
Why does my refrigerator make a clicking noise?
If your refrigerator compressor is making a clicking noise, it could be the compressor shutting off as it overheats. Try cleaning the condenser coils first, but if the compressor continues to click, you may need to have a professional replace the compressor.
How to tell if refrigerator compressor relay is bad?
Once you’ve located the compressor on the back of the refrigerator, unplug the start relay from the unit and shake it. If you can hear rattling, the relay is bad and will need to be replaced. If you don’t hear a rattle, the relay is in good condition and the issue may be with the compressor itself.
Why does my refrigerator stop working?
When a refrigerator stops working, it is most likely due to an overheated compressor. Several factors could be responsible for an overheated compressor. This guide will help you to determine whether you can fix your overheating compressor on your own and when to contact a professional.
How to clean a refrigerator condenser coil?
To keep your compressor operating properly, you can clean the condenser coils yourself. Move the refrigerator away from the wall and unplug it. Once the refrigerator is unplugged and the compressor is no longer too hot to touch, you can remove the bottom back panel with a screwdriver. If the condenser fan is covered in dust, you can use a vacuum cleaner or paintbrush to remove it.
Why does my compressor overheat?
Similar to dirty compressor coils, a dirty condenser fan can cause the compressor to overheat by limiting the amount of hot air that is able to escape. If the condenser fan is broken, heat will become trapped in the compressor and cause it to overheat. You can clean a dirty condenser fan with compressed air or a vacuum cleaner, but you may have to replace the compressor if the condenser fan is broken.
How to clean a refrigerator coil?
Clean the coils using a refrigerator coil brush or a vacuum hose with a soft brush. 2. CONDENSER FAN. Excessively hot freezer walls could also be a sign that the condenser fan is malfunctioning. The condenser fan circulates air across the condenser coils, helping cool hot refrigerant coming from the compressor.
What causes a freezer to get hot?
IF THE FREEZER EXTERIOR IS EXCESSIVELY OR CONTINUOUSLY HOT, CHECK THE FOLLOWING: 1. CONDENSER COILS. Dirty condenser coils can contribute to hotter-than-normal freezer walls. Dust, lint, and other debris can build up in the coils over time and block efficient airflow, preventing your freezer from cooling properly.
Why is the outside of my freezer so hot?
WHY THE OUTSIDE OF YOUR FREEZER IS SOMETIMES HOT. Your freezer’s compressor moves refrigerant through the appliance, generating heat as it runs. This heat dissipates to the sides of the freezer, helping prevent moisture from forming on the outside of the appliance. As a result, the exterior walls may sometimes feel hot to the touch.
Why is my freezer always hot?
A compressor that’s working twice as hard could be the reason the outside of your freezer is always feeling hot. If you feel cold air leaking out of your freezer anywhere around the doorframe, the seal likely needs replacing.
What is a door seal?
DOOR SEAL. Your freezer’s door seal (also called a gasket) is a protective seal that keeps cold air in and warm air out. If the seal is cracked or damaged, warm air can seep into the freezer, causing the compressor to work overtime to keep the freezer cold.
Why does my refrigerator feel hot?
As your refrigerator cycles on and off to maintain the appropriate temperature, the outside walls may feel warmer or cooler at different times . This is a normal and necessary function of your appliance.
What brands of appliances does GE repair?
We fix all GE Appliances brands: GE, Profile, Café, Monogram, Hotpoint, Haier, and Adora.
How does a compressor work?
The compressors and skin get hot the inside gets cold that's how they work. The more thermal mass you have inside the less it will run and the lower temp fluctuations you will have.
How does cold refrigerant work?
In a refrigeration system cold refrigerant vapor gets compressed by the compressor which gets hot and produces hot gas. That hot gas goes through a radiator (which in a chest freezer is just tubing wrapped around the thing just under the skin but outside the insulation). The heat (which is energy from the compressor motor plus heat from ...
How long does it take for a 25 cu ft compressor to cool down?
On start up I had 6 bags of ice and 6 cold kegs, I removed the ice once the compressor was cycling for about 5 minutes every 1/2 hour or so
When you plug in a freezer, does it run for a long time?
When you first plug in a freezer it is going to run for a long time. It will come closer to equilibrium (the highest temperature it reaches under a given set of conditions) on a long initial run than on short, temperature maintenance runs once the box and its contents are cooled down.
Do chest freezers have fans?
Uhm, MOST chest freezer that are not commercial grade, Don't have fans or need them. And the coils are sealed within the walls of the unit. (refrigeration tech)
Is it normal for freezers to get hot?
I would try it again (when you are home, just to be safe). Our freezers at work get pretty darned hot when they are first turned on. I think that's normal.
Reasons Why My Freezer is Hot on the Outside
One of the most common causes of an unusually hot freezer exterior is when you load a lot of room-temperature food inside all at once. The freezer has to work hard for a long time to bring the inside temperature down and to freeze such items.
When Does An Overheating Freezer Need Repair?
Sometimes an overheating freezer requires maintenance or repair. The three most common causes are a dirty compressor coil, a malfunctioning compressor fan, and a damaged door seal.
Potential Fixes for a Hot Freezer?
Fortunately, the three main problems listed above are all easy to fix. The first and most important step to each process is unplugging the appliance to prevent electric shock.
Can my Freezer Catch Fire?
There are a few conditions that can lead to your freezer catching fire. The most common cause is an electrical malfunction. If your freezer is overheating on the outside and you can’t determine the cause, promptly addressing the issue is highly suggested.
Final Thoughts
A freezer that’s hot on the outside is a common occurrence. Because the outside temperature fluctuates, a slightly warmer exterior may cause alarm. The important thing to look for is persistent, excessive heat. The pointers in this article should keep you covered in most circumstances.
Why is my condenser pressure high?
Keeping the discharge pressure within normal operating conditions is still important. Causes of high discharge pressure can include dirty condensing coils, undersized discharge line, a blockage or recirculation of condenser air, erratic condenser fan operation, refrigerant overcharge, noncondensibles in the system, and an undersized condenser.
Why is suction pressure low?
Causes of low suction pressure can include incorrect sizing of components, misadjusted or defective metering devices (TXVs), loss of refrigerant charge, plugged driers or strainers, and excessive suction line pressure drop.
Why is my reciprocating compressor failing?
A common cause of premature reciprocating compressor failure is overheating. A recip that is running too hot will surely fail before its time. A service tech should always look for this potential problem while servicing any refrigeration system.
Why is my compressor running hot?
There are several reasons for a compressor to run too hot, including high compression ratio, high return gas temperatures, and lack of external cooling. High compression ratios are the result of either lower than normal suction pressures or higher than normal discharge pressures.
How far away should a compressor discharge line be from the compressor?
A technician should also check the discharge line temperature within 6 inches from the outlet of the compressor.
How hot should a compressor discharge line be?
A technician should also check the discharge line temperature within 6 inches from the outlet of the compressor. Any temperature above 225 degrees should be investigated and the cause found and repaired.
What temperature should a compressor be at?
This means the discharge line temperature should never exceed 225 degrees (300 degrees minus 75 degrees). At temperatures between 300 degrees and 320 degrees inside the compressor, the refrigeration oil will start to lose its ability to lubricate.
Why does my chest freezer smell so hot?
Not uncommonly, a chest freezer will feel somewhat warm to the touch, which is a natural byproduct of the mechanical process that cools the food inside. However, if you detect a hot odor or the sides or top of a unit become inordinately hot, your compressor is likely headed for failure.
How does a freezer condenser work?
Freezer Condenser Generates Heat. To function properly, a compressor must get rid of the heat it pulls from inside the product compartment that it generates while going about its duty of squeezing refrigerant. The condenser is the part that dissipates heat; to accomplish this, it must be cleaned regularly of dirt buildup.
Why does my freezer get hot on the outside?
A deep freezer hot on outside, or a fridge freezer heating up on the outside, may be part of perfectly normal operation. When a chest freezer, or any other kind of freezer for that matter, overheats, the problem can often be traced to the compressor. But the compressor doesn't work all alone. Other mechanical issues can occur in ...
What is the job of a compressor?
The primary job of the compressor is to squeeze refrigerant hard enough to change it from a gas to a liquid state. This state change results in lower temperatures, which cools the air that is forced into the freezer compartment.
What is the part of a refrigerator that dissipates heat?
The condenser is the part that dissipates heat; to accomplish this, it must be cleaned regularly of dirt buildup. As a condenser gets cluttered with dirt, the compressor must work harder to try to get rid of heat generated by the cooling process. Advertisement. The condenser on both chest and upright freezers is actually encased in ...
How long does it take for a compressor to fail?
Years may pass before a compressor actually fails. The problem with this strategy is that the leak is still there and, as refrigerant is released, a greater burden is placed on the compressor.
How much space should a freezer have?
To help mitigate the heat by increasing air circulation, freezers should be placed where they have at least 3 inches of space on all sides.
Why is my compressor hotter than normal?
A lack of refrigerant forces the compressor to work extra hard to do the same job . That’s why it’ll end up becoming a lot hotter than average.
Why does my fridge overheat?
As the compressor works harder and longer than usual, it’ll eventually start to overheat. Typically, your fridge will either have a mechanical thermostat or an electrical one. Knowing the type of thermostat you have will help you narrow down the reasons why it has become faulty.
How to fix a fridge compressor that is running hot?
How to fix: If your fridge thermostat is the reason your compressor is running hot, you may need to replace it entirely. Depending on your level of DIY skills, you could either call a fridge repair company or buy the parts yourself online. Be careful if you decide to fix it yourself, though.
Why is my fridge compressor hot?
That typically happens when the temperature thermostat has failed, the cooling system lacks refrigerant, the condenser fan has stopped working, the compressor is worn out, or you’ve placed the fridge where it’s too sunny. Let’s explore these reasons in a bit more detail.
What is a temperature thermostat?
What is it: The temperature thermostat is the part of the fridge that monitors the temperature inside. When it figures out that the refrigerator is too warm inside, it’ll activate the compressor to generate cold air. Then, when the inside reaches the temperature that you’ve set, the thermostat will shut off the compressor until it gets warm again. ...
What happens when a condenser fan stops working?
When a condenser fan stops working, the compressor won’t be able to cool down like it usually does. As you can imagine, that compressor will start to get too hot even though it’s operating normally. Plus, the fridge will also start becoming hot between its doors.
What happens if the thermostat fails on a compressor?
If the temperature thermostat fails, it’ll tell the compressor to keep working all the time even when it doesn’t have to.
