I had checked Defrost heater and air temperature termistor and they are working. Door seal gasket looking good. Ice on coil is unstopable, if I dont turn off refrigerator ice ascend to evaporator fan.
Hello Manuel;
My name is Peter. I am a retired field service refrigeration technician.
How did you check the thermistors? To check them you need to cut the thermistor out or your unit, put it into a glass of ice water, use your multi-meter and get a reading of 16 or higher Ohms.
How did you check your defrost heater. You need to access the defrost heater behind your freezer wall. disconnect it and check for at least a reading of 50 Ohms.
I will get back to you tomorrow. It is late and I will help you.
Testimonial: "Thank you very much ! Your help confirm me that problem was in main control board. Affortunely in a bad condition or cold welding. I had to change a not enough flexible flat wire with 12 conductors. Refrigerator is working normally and reliably adjusted to operation cycle. Very kind !!!""
There a number of reasons that ice forms on the evaporator coil. One is no air flow or not enough air flow over the coil. Another reason could be the unit is not going into defrost. There will be some ice on evap coil most of the time, but the defrost cycle should remove the ice. If there is not enough air flow across the coil to take away the cold, the coil will build up ice. I would check the defrost cycle and make sure there is not an obstruction in the circulating fan system. On the older refrigerators you could turn the defrost timer to defrost, but the newer models have circuit boards, and I am not sure how to force the defrost.
Testimonial: "Thank you very much ! Your help confirm me that problem was in main control board. Affortunely in a bad condition or cold welding. I had to change a not enough flexible flat wire with 12 conductors. Refrigerator is working normally and reliably adjusted to operation cycle. Very kind !!!"
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