The situation when the refrigerator is working, making noise, the backlight is on, but it gets warm inside is one of the most common problems with household appliances. Many users do not notice the malfunction right away: food begins to spoil faster, water appears under the drawers, the freezer freezes meat and semi-finished products worse. The reasons can be either simple and removable without repair, or associated with serious breakdowns of the compressor or cooling system.
The first thing to check is that the temperature settings are correct. Sometimes, after a power outage or accidental pressing, the regulator switches to the minimum cooling mode. The problem may also arise from a door that is not tightly closed. If the sealing rubber is worn out, warm air constantly gets inside, the compressor starts working almost without stopping, but the cold is still not enough.
Another common reason is severe icing of the evaporator. This is especially true for No Frost models. When the defrosting system stops working correctly, the fan begins to poorly circulate cold air through the chambers. The user hears the operation of the equipment, but the temperature inside gradually increases. In some cases, complete defrosting for 10–24 hours helps, but if the problem recurs, diagnostics of the sensors, heating element or control module will most likely be required.
Often the refrigerator stops freezing due to contamination of the condenser. The radiator on the back of the equipment becomes covered with dust, heat transfer deteriorates, the compressor overheats and loses efficiency. This happens especially quickly in apartments with animals or in kitchens with high humidity and grease in the air.
- compressor malfunction;
- freon leak;
- broken thermostat or temperature sensor;
- evaporator freezing;
- No Frost system malfunction;
- wear of the door seal;
- clogged capillary tube;
- electronic control module failure.
If your refrigerator turns on for a few seconds and immediately turns off, this may indicate a problem with the start relay or compressor. When there is a freon leak, the equipment often works almost without stopping, but the cooling remains weak. Sometimes uneven frost or oily marks appear on the walls near the tubes. It is impossible to fix such a malfunction on your own, since it requires searching for the leak, soldering the system and charging with refrigerant.
Modern refrigerator models are heavily dependent on electronics. Even a small voltage surge can damage the control board. After this, the equipment may incorrectly determine the temperature, turn on the compressor randomly, or completely stop starting the cooling.
