Waeco cfx 65 Fridge problem

Thank you Allen. The thermostat should be in working order. I unplugged it and measured it’s resistance. It read a resistance of about 27k ohm in frozen state and immediately lowered in resistance after being removed from the unit. I’m not 100% what the exact ohms should be but it seems to be working fine. I will probably just end up taking the gamble as I’m trying to avoid a costly repair.

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The thermistor is 10k ohms at 25'c.
And I was trying for you to avoid a futile attempt. If you purchase a replacement PCB it may be possible to buy from a source that will allow returns.

Hey RMD thank you for helping me with my problem. I have managed to narrow the problem down to the electronic starter, by swapping out all the parts from a broken donor fridge from the local dump. Unfortunately its electronic starter is also broken, as the fridge won’t even turn on when swapping it out. Changing the other pcb, display, override and thermostat left me with nothing but the same problem. The pcb of the starter module looks surprisingly clean and I couldn’t find any signs of corrosion, blown capacitors or other damage. But I will have another look now that I have a donor board. Speaking of which, these things are surprisingly expensive to replace. With the cheapest I could find costing over 300$?! I must not be the first person to run into issues with this component.

Bela.
If the donor bits have the same hidden problem, how do you eliminate one or the other to determine it is what is called a starter circuit. Perhaps the fridge capacitors look perfect but but maybe one OR MORE is not acting as the capacity value printed on it's case. Why I say this is. A lady friend of mine had a Westinghouse home fridge which "would not switch the motor ON". I removed the PERFECT LOOKING CIRCUIT BOARD, and removed some larger, timing capacitors from the board. I have a tester and found two of the vital, ON delay timing capacitors had almost no capacitance value. Jaycar trip and a bit of soldering saw the fridge resume duty for 2 1/2 years until the motor seized, then Kaputt. I would be testing them unattached to the circuit with a multimeter which indicates capacitance values. Just a possible reason. Worth a try! If it starts sometimes and not others, it to me, indicates capacitance altering, maybe with temp or climate/moisture in air and or dust on components leaking stored capacitance values