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Do you feel that the walls of the freezer are hot? This is possible as long as the compressor continues to run. But, when the motor is resting, the walls should cool down. If this does not happen, you need to look for the reasons why the freezer is heating up.
Why do freezer walls overheat?
Initially, the design of the refrigerator provided for the placement of the freezer at the top. In modern models, it is located below. This is a more rational approach, since the compressor first pumps cold into the freezer and then into the refrigerator.
Since its task is to cool food, it seems that its walls must also be cold. However, it is not. To better understand why they heat up, you need to understand the general principle of operation.
Thanks to the compressor, the refrigerant circulates through the system, absorbs heat and thereby cools the chambers. The accumulated heat is removed through the grate, which was previously located on the rear wall.
Now these tubes are inside the case, on the sides and on top. Therefore, do not be surprised that between the refrigerator and the freezer it becomes hot.
Learn more about how does a refrigerator work, read in a separate article.
If the walls heat up slightly and cool down during the “rest” of the motor – then do not worry. The instructions indicate the climatic class of equipment: at what temperature it should be operated.
But if the chamber heats up constantly and the temperature clearly exceeds the norm, this indicates a problem.
Diagnostics and repair
Listen, is the compressor turning off or running non-stop? If the operating time is exceeded, this indicates a problem. Therefore, the walls heat up and do not have time to cool down.
What could be the indirect cause of continuous work?
The compartment door is often and for a long time open
Also, a gap could form in the seal, and warm air penetrates inside. The temperature rises, the sensor reports this to the main module. Therefore, the latter does not give a command to turn off the motor until the required values uXNUMXbuXNUMXbare reached.
What you can do:
- Read the instructions again. Do not open the door for a long time.
- Check the rubber seal. If it is worn out, replace it. If clogged, wash with warm water and soap. When deformed, hot water treatment will help to return the rubber to its shape.
- Check the hinge fasteners. Perhaps they sank, so the door does not fit snugly against the body.
Incorrect thermostat values or mode
When the “Super Freeze” mode is installed in mechanical models, the freezer will cool “until you drop” until you turn it off. Check if you accidentally set this mode.
Too low thermostat settings lead to similar problems. Correct.
Wrong installation
According to the rules, the case should stand at a distance of 5-7 cm from the walls, away from batteries and stoves. If there is too little space for proper ventilation, the walls may overheat.
Warm foods
Have you loaded many products at once into the department? Then the motor will run until the temperature is restored. Normally, this should take no more than 20-30 minutes.
If frost builds up in the freezer with No Frost, this indicates a malfunction. Heat exchange is disturbed, the compressor works with a double load, the walls of the freezer heat up.
What breakdowns lead to the continuous operation of the motor and require repair?
Broken thermostat
When the thermostat breaks, the module can’t get the temperature in the compartment, so it doesn’t send a signal to the motor to turn off. You can replace the thermostat yourself. Most often it is located inside the chamber on the side wall (with separate adjustment).
- Unscrew the sensor panel.
- Remove the defective item.
- Install a new part.
Evaporator problems
Failure of any element of the evaporator threatens the failure of the entire refrigerator. It is necessary to diagnose the defrost timer, sensor, heater. In such cases, it is better to contact the master, since special equipment is needed. He will remove the back wall and replace the broken parts.
Freon gas leak
This is the refrigerant that circulates through the system. A leak can occur for the following reasons:
- Corrosion of steel contour. Refrigerant moves through the pipes of the circuit, and the slightest damage during corrosion leads to a leak.
- During defrosting, you used physical force and damaged the camera, perhaps pierced the case. Read more about this on the pageWhat to do if the freezer or evaporator is broken».
You need to contact the service center to localize the damage and refuel the system with freon.
Occasionally, the problem may be in the control board. If a short circuit or moisture gets on it, the triac that controls the compressor could burn out. It is necessary to ring all the elements and eliminate the breakdown.
Have you noticed that the freezer walls are getting hot? Do not panic, check the indicated items, and then call a specialist.