If a refrigerator goes from freezing cold to warm quickly, it could be due to the compressor not working. The compressor is the heart of the refrigerator's cooling system, and when it fails, it disrupts the entire cooling process. Several factors can cause the compressor to stop working:
Compressor failure: The compressor itself may have malfunctioned or failed. This can happen due to wear and tear over time, electrical issues, or manufacturing defects.
Electrical problems: Problems with the electrical components, such as the start relay, capacitor, or overload protector, can prevent the compressor from receiving the necessary power to function properly.
Thermostat issues: A faulty thermostat may fail to signal the compressor to turn on when the temperature rises inside the refrigerator.
Blocked condenser coils: Dust, dirt, or debris accumulation on the condenser coils can restrict airflow and cause the compressor to overheat and shut down.
Faulty temperature control board: The temperature control board regulates the compressor's operation based on the set temperature. A malfunctioning control board can lead to erratic compressor behavior.
Low refrigerant level: If the refrigerant level is too low due to a leak, the compressor will struggle to maintain the required cooling temperature.
Defrost system issues: In some refrigerators, if the defrost system malfunctions, it can cause ice to build up on the evaporator coils, preventing proper cooling and causing the compressor to work harder.
If you experience this sudden change in your refrigerator's cooling behavior, here are some steps you can take:
Check the power: Ensure that the refrigerator is receiving power and that the outlet is functioning correctly. Try plugging another appliance into the same outlet to verify.
Clean the coils: If the condenser coils are dirty, clean them gently using a vacuum cleaner or a brush. This can improve airflow and prevent compressor overheating.
Inspect the compressor: Listen for any unusual sounds coming from the compressor. If it's silent and warm to the touch, it might be a sign of compressor failure.
Call for professional help: If you can't identify the issue or suspect a more complex problem, it's best to contact a qualified appliance repair technician to diagnose and fix the problem. Working on refrigeration systems can be dangerous without proper knowledge and training.
Keep in mind that depending on the age and condition of the refrigerator, the cost of repairing the compressor might be significant. In some cases, it might be more cost-effective to consider replacing the refrigerator with a newer and more energy-efficient model.