Does your refrigerator need repairs? The equipment served for several years without breakdowns, but did the defrost system stop working? Of course, with such a malfunction, operation cannot be continued. If there is no defrost in the refrigerator, the timer may need to be replaced. There are other causes of the malfunction that need to be checked.
Do not thaw the back of the refrigerator
The nature of the breakdown may depend on the type of defrost in your refrigerator. In older models, a drip defrosting system was installed: the user had to manually defrost the equipment at regular intervals.
Modern manufacturers use the No Frost system, which means: no frost. This technique does not need artificial defrosting, since there should not be snow and ice. The refrigerator is equipped with a fan that distills cold air. At the outlet, air passes through the evaporator, leaving frost on it, which thaws in a special compartment.
Once you open the Indesit, Atlant, Samsung, or other refrigerator, you find that the defrost is not working. Outgrowths of ice and snow formed on the back wall of the cell. What happened?
Why the back wall does not thaw:
- For electronic control, a thermostat that regulates temperature becomes a frequent problem. It happens that the user sets the values incorrectly, so the refrigerator freezes.
On electronically controlled models, the air sensor may break. A faulty temperature sensor sends incorrect signals to the module. The compressor starts to work without stopping, so the snow on the wall does not thaw.
- A similar situation occurs when refrigerant leaks when the system is working hard to raise the temperature. Leakage occurs when the housing or capillary is damaged.
- Blockage in the capillary piping leads to poor refrigerant circulation. It is necessary to clean the system from clogging and refill freon.
- The casing insulation began to freeze. Moisture accumulation on the walls caused the insulation of the housing to get wet. It is necessary to remove the damaged and put a new insulation.
- The cooling switch valve does not work, so one of the compartments starts to freeze.
It may be such that the refrigerator does not turn on after defrosting. You open the chamber door, but there is no cooling. Perhaps only one department does not work, or both at once.
Do not rush to look for a malfunction, give the refrigerator a day so that it can enter the operating mode and set the temperature.
What happened:
- If the refrigerator does not turn on or works for a short time, it is likely that Freon will leak. The temperature in the cells rises, a beep may sound or a red light will come on.
- If the motor-compressor fails, the equipment does not turn on at all, the light in the department does not light. The motor can start for a short time and turn off immediately.
- Damage to the electronic unit due to moisture. The system can behave unpredictably: do not start, it is bad to freeze.
The proper operation of the equipment will help to avoid such damage. It is important to defrost the refrigerator properly. After freeing the chambers, allow time for natural defrosting. Do not try to speed up thawing by breaking off the ice with foreign objects. After connecting, do not immediately clutter up the shelves with products, let the refrigerator run for a couple of hours in vain.
Refrigerator defrost timer repair
If your equipment is equipped with the No Frost system, the timer could break and cause problems. It is programmed for a specific time after which the defrost starts. You can check and replace the timer in the refrigerator.
How to check the defrost timer:
- open the freezer door;
- pull out all the shelves and baskets;
- remove the panel that covers the fan;
- remove the inner panel where the fan and timer are located;
- you need to close the timer wires: if it turns off, then the element is working.
Most often, the timer fails due to sticking. If the appliance is stuck in the cooling or defrosting position, the refrigerator will work accordingly. The timer circuit could also break.
The life of the equipment depends on the proper handling of the equipment. Install the refrigerator on a flat surface, defrost only empty chambers. If after defrosting the motor does not start working, contact the master.