Defrost thermostat replacement

Today we are going to talk about refrigerator defrost refrigerator thermostat replacement. With the replacement of the defrost heater we are done. Now let’s move on to replacing the refrigerator thermostat. The thermostat is one of the most important parts, the breakdown of which leads to negative consequences – insufficient or excessive cooling. If a new component is not installed in time, it can disable the compressor, which threatens you with high repair costs. Therefore, replacing the thermostat in the refrigerator should be done in a timely manner and preferably by someone who understands appliance repair, such as the technicians at SAR Appliance Repair.

How do I check the thermostat in a two-compartment refrigerator?

The first thing to do before replacing the thermostat is to diagnose the malfunction. To do this, you will need to do the following steps:

  1. Unplug your refrigerator from the power outlet.
  2. Remove all food from the freezer and refrigerator compartment.
  3. Defrost the fridge completely (the motor should be cold).
  4. Set the thermostat to the minimum position, i.e. turn the knob counterclockwise until it clicks.
  5. Put an outside thermometer in the refrigerator compartment. For a complete picture it is desirable to put a thermometer in the freezer compartment as well.
  6. Turn on the refrigerator.
  7. Do not open the doors for two hours.
  8. After this time you have to quickly look at the temperature in the fridge and freezer compartments.

We are mostly interested in the temperature in the refrigerator compartment — it should not be higher than 37-40 ˚F (6 and 7 ˚C). If you see that the temperature is higher than these figures, then replacing the thermostat will not lead to the desired result. In the freezer compartment, the temperature should not be lower than -7-8 F (-22 °C), if you see that there is -22 F (-30 °C), then most likely we are talking about a Freon leak. You can also find a small sliding plate near the pin where the thermostat knob is attached, and try to move (click) the latch plate. If it does not move or if there is no audible click, the thermostat may not be working.

Replacement of the thermostat in the refrigerator requires certain knowledge and skills, so our skilled professionals will perform the work with a guarantee. It is made in several steps:

  1. If the thermostat is outside and not inside the cabinet, the refrigerator compartment door is removed first. If inside, the plastic box is disassembled.
  2. Then the plug, all screws, self-tapping screws, and other fasteners that hold the cover are removed.
  3. Before getting to the part, the handle behind which the thermostat shaft is located is removed.
  4. Unscrew the nut of the shaft, the bolt which is the base for fixing the housing.
  5. Then it is necessary to pull the housing down, detaching it from the wall.
  6. Behind it is the thermostat, which must be disconnected from the fasteners and wiring.
  7. Before removing the broken part, check the functionality of the capillary.
  8. The capillary tube is pulled out of the old unit (previously disconnected from the evaporator) and placed in the new one.
  9. All elements are put back in place.
Defrost thermostat replacement

If you are wondering if your fridge defrost thermostat are working properly just call +1(727)350-9322 or use our online booking system and we will send a technician to your home. Our expert will diagnose the problem and tell you the cost of parts and labor. If you agree to the price, they will proceed with repairs to your appliances. And because we are committed to customer satisfaction, we hope you take the time to leave us a positive review on Yelp or Google!

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