Magic Chef HDMR1000WE not entering defrost cycle

Brand: Magic Chef
Model Number: HDMR1000WE
Main Symptom: Defrost cycle not activating
What happens & when: Compressor runs non stop causing ice build up on coils. I took apart what i could and am not sure what each part is. The part that’s by itself tests at 0.01 Ohms and the heater plug which is at top left of first Pic has 75 ohms of resistance. I simply dont understand how to narrow this down to a specific part that’s bad. I cant isolate the thermostat bc some online posts ive read have differing explanations about where the therostatbis. I’ve read that it could be the motherboard but I cant afford to throw $100 at a part that may not be the issue. I know the fan works and the ice build up happens after a few days of compressor running non stop and then the fridge section gets to about 60 degrees. Any help would be greatly apreciated.

Error Code (if any):
Parts or tests already tried:
Photos / video link:

PLease double check the model # you sent. It keeps coming back to a ge microwave

My fault, its HMDR1000WE

I’m sorry but we have no test or part information for that model. It was manufactured by a company called Vissani which we have no support from. You will need to contact the manufacturer directly