A common problem is the failure of the thermostat or thermostat. You can replace the thermostat in the refrigerator yourself - a step-by-step guide is presented below.
Thermostat working principle
Immediately make a reservation that the thermostat has automatic control, while the thermostat is manual. This is where two details differ, but the principle of operation is similar: both control the temperature in the refrigerator chamber.
A capillary tube filled with refrigerant is attached to the thermostat housing. As soon as the temperature in the compartment begins to rise, the pressure rises in the tube, which makes the start-up relay trip. This starts and stops the compressor.
The spring plays an important role in the design of the thermostat. The tension and relaxation of the spring due to manual switching allows you to change the temperature in the chamber. This is how the temperature controller in hand-operated refrigerators is arranged, for example, Atlant, Indesit, Biryusa.
In modern refrigeration equipment ("Stinol", "Nord", "Veko") electronic thermostats are built-in. They consist of sensors and a control module. Replacing an electronic sensor with a new one requires special knowledge, so we advise you to call a wizard.
Where is the thermostat located
The part can be located inside and outside the case. With an internal arrangement, the regulator is located behind a plastic box, on the wall of the compartment. The control knob and then the access panel are removed for replacement.
With an external location - the thermostat is located mainly above the door. You should focus on the temperature switching knob.
Signs of breakage
There are several external signs by which you can guess the problems with the thermostat:
- the refrigerator does not freeze;
- the motor runs without stopping;
- snow and ice are growing on the walls of the cell.
You can check yourself. To do this, unplug the equipment, defrost it. Then set the regulator to full power and connect the refrigerator. Put a thermometer in the camera. If after 2 hours the thermometer showed 6-7 degrees, then everything is in order. If not, repairs are required.
For what reasons can a snow coat in a branch grow? The temperature controller is faulty, and the module does not receive a signal about the temperature in the chamber, so cooling does not stop.
We will tell you how to replace the thermostat with your own hands. After all, the price of one part is much lower than the cost of a complete repair in a service center.
Thermostat replacement procedure
Before proceeding with the repair, unplug the refrigerator, empty the shelves of food and defrost. Take flat and Phillips screwdrivers, pliers.
Remember to purchase a thermostat for your refrigerator model. How much the part costs can be found in the online store.
- Open the camera door.
- Remove the temperature control knob by prying off with a flat screwdriver.
- Behind it is the shaft of the thermostat.
- Loosen the shaft nut with the pliers and unscrew it.
- Turn off a bolt of fastening of the case.
- Pull the case down to disconnect from the wall.
- On the inside you will see a thermostat.
- Push the part out and remember the wiring connectors. You can take pictures of them in order to make the correct connection in the future.
- Disconnect the wiring from the thermostat by opening the latches on some of them.
- Before removing a part, make sure that the capillary that is attached to it normally leaves the case.
- Remove the capillary sleeve from the old thermostat and place in a new one.
Replace in the reverse order.
This is how you can independently repair and replace the temperature controller. You can take pictures or take pictures of all your actions, which will help in the future to quickly assemble the equipment back.