Owners of brand appliances Biryusa often encounter a situation where the partition between the freezer and refrigerator compartments becomes hot to the touch. In most cases, this is not a breakdown, but the normal operating mode of the No Frost or drip defrosting system, which prevents the doors from freezing. However, if the surface temperature is too high or the heating is accompanied by other symptoms, it is worth conducting a diagnosis.
The heating intensity depends on the model of the refrigerator, the room temperature and the load on the compressor. Understanding the physical processes occurring inside the unit will help distinguish normal operation from malfunction. In this article we will analyze in detail the heat exchange device and possible causes of overheating.
The principle of operation of the heat removal system
Modern refrigerators, including popular models Biryusa, are designed so that the heat taken from the products must go somewhere. A capacitor is used for this. In old models, this was a black grille at the back, but in new modifications, the condenser pipes are often built into the side walls and the central partition between the chambers.
When the compressor pumps hot refrigerant, it passes through these pipes, releasing heat to the environment. That is why the sidewalls and the jumper between the compartments can noticeably heat up. Refrigerant circulation is a continuous process necessary to maintain a low temperature inside.
If you notice that it is the area between the doors that is heating up, this often indicates the operation of the anti-condensation circuit. The system specially heats this area so that moisture does not appear on the surface of the metal. This is especially true in hot weather or with high humidity in the apartment.
Main reasons for heating the partition
There are several factors that influence the temperature of the central panels. Most often they are associated with design features or external conditions. If the refrigerator Biryusa heats between the chambers, first of all the following reasons should be excluded:
- 🔥 The operation of the anti-condensation heating element or circuit is the normal moisture protection mode.
- 🌡️ High ambient temperature in the room where the equipment is located.
- 🚪 Loose fit of the doors, which causes warm air to get inside.
- ❄️ Ventilation grilles clogged with dust, disrupting heat exchange.
It is important to distinguish between “warm” and “hot”. The partition should be warm, but not scalding. If the metal cannot be touched, the thermostat may have malfunctioned or the compressor is working without interruption.
Malfunctions of the defrosting system
One of the specific causes of overheating may be a malfunction of the defrosting system. In models with No Frost heating element is responsible for heating the evaporator and drainage. If the defrost thermostat is stuck closed, the heating element may operate continuously, transferring excess heat to adjacent housing elements.
In drip systems, the problem may lie in a clogged drain hole. The water does not drain, it freezes, and the system tries to compensate for this by being more active. Check if there is ice at the bottom of the freezer or water on the floor.
⚠️ Attention: Constant operation of the defrost heating element not only overheats the case, but also leads to excessive energy consumption and premature wear of the compressor.
To diagnose this problem, you will need a multimeter. It is necessary to ring the heater circuits and check the resistance. If you do not have the skills to work with electrical appliances, it is better to contact a specialist, as partial disassembly of the internal unit will be required.
How to check the heating element with a multimeter?
To check, switch the multimeter to resistance measurement mode (Ohms). Unplug the refrigerator. Remove the back panel in the freezer, find the heating element and measure the resistance between its contacts. The norm is from 200 to 600 Ohms. If the device shows “1” or “0”, the element is faulty and requires replacement.
Problems with door seals
A frequent reason that it becomes hot between the chambers is a loose fit of the rubber seals. If warm room air enters the gap, it condenses on the cold surface of the partition. The anti-condensation system begins to work in enhanced mode, trying to dry this area, which causes strong heating.
You can check the tightness with a simple test with a sheet of paper. Press the door around the perimeter of the sheet and try to pull it out. If the paper pulls out without resistance, the seal in that area is worn or deformed. The reason may also be that the door is skewed due to improper installation.
The solution will be to adjust the hinges or replace the rubber. Sometimes it is enough to simply wash and degrease the seal so that it fits snugly again. Dirt and grease reduce the elasticity of the material and impair thermal insulation.
The influence of placement and ventilation
Proper installation of the refrigerator Biryusa is critical for heat transfer. If the unit is placed close to a wall or in a niche where there is no clearance, the heat cannot be dissipated effectively. Hot air stagnates around the body, heating the internal partitions.
The operating instructions require leaving a gap of at least 5-10 cm from the back and side walls to the nearest pieces of furniture. Also, you cannot cover the refrigerator or place it next to it, such as radiators or stoves.
☑️ Rules for installing the refrigerator
Check the ventilation holes at the bottom and top of the rear panel. They often become clogged with dust and pet hair. Cleaning these areas with a vacuum cleaner can significantly reduce the temperature of the case.
Diagnostics and table of symptoms
To understand whether you need urgent help from a specialist or whether preventive measures are enough, analyze the accompanying symptoms. Below is a table that helps classify the problem.
| Symptom | Probable cause | Urgency of repair | Actions |
|---|---|---|---|
| The partition is warm, food cold | Normal operation of anti-condensate | Not required | Observation |
| Intense heat, compressor hums without stopping | Freon leakage or clogged capillary | High | Call a technician |
| Heating only in the door area | Leaky seal | Medium | Adjustment or replacement |
| The bottom gets hot, gurgling is heard | Normal refrigerant flow | Not required | Check ventilation |
If you observe a combination of symptoms indicating a technical malfunction, do not delay. Long-term operation in abnormal mode can damage the compressor, the replacement of which is expensive.
When you need to call a specialist
There are situations when independent repair is impossible or dangerous. If heating is accompanied by a burning smell, sparking, or if the refrigerator has stopped freezing, immediately unplug it. Refrigerant leak or shorted wiring requires professional intervention.
Also, a technician is needed if after defrosting for 24 hours (mode Off on the thermostat) the situation has not changed, and when turned on, the system again overheats. This indicates an internal malfunction of the electronics or mechanical part.
⚠️ Attention: Do not attempt to open the sealed circuit yourself or change the compressor without special equipment. This can lead to injuries and final breakdown of the equipment.
The specialist will conduct a full diagnosis, check the pressure in the system, the integrity of the motor windings and the condition of the starting relay. Only an integrated approach will eliminate the cause, not the effect.
Prevention of overheating
To ensure that your Biryusa serves for a long time and does not cause problems with heating, follow simple operating rules. Regularly, at least once every six months, turn off the refrigerator to defrost and wash the internal and external surfaces.
Keep the condenser grill at the back clean. You need to vacuum it carefully so as not to crush the thin tubes. Also check that you are not loading the refrigerator with hot foods - this creates unnecessary stress on the system.
Timely replacement of seals and checking the installation level will help avoid many problems. Remember that proper operation is the key to the long life of household appliances.
Is it possible to install a refrigerator in a niche?
You can install it, but only if the niche is open at the top and bottom for free air circulation. Closed niches (“pencil cases”) without ventilation are prohibited by manufacturers, as they lead to overheating and breakdown of the compressor.
Is it normal if the partition is heated in the summer?
Yes, in the summer the load on the refrigerator increases due to the high temperature in the room. The anti-condensation system works more intensively, so the heating between the chambers may be more noticeable than in winter. The main thing is that the refrigerator continues to freeze.
Why does only the upper part of the partition heat up?
This may indicate local overheating in the exit area of the condenser tubes or that the anti-condensation circuit is laid in this area. If there are no other symptoms, this is normal.
How long should the refrigerator cool down after defrosting?
After turning on, the refrigerator Biryusa reaches operating temperature within 2-4 hours. At this time, the compressor works intensively, and the heating of the housing can be maximum. If after 6-8 hours the temperature does not stabilize, diagnostics are needed.
Can overheating be due to power surges?
Voltage surges can damage the starting relay or electronics, which will lead to incorrect operation of the compressor and, as a result, to overheating. It is recommended to use a stabilizer or surge protector.