Why Pvm1970Sr1Ss Microwave Oven Cooling Fan Runs When Door Is Opened Ge Microwave Oven

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The cooling fan on our GE PVM1970SR1SS Microwave runs when the door is opened. Testing results of both door latch and monitor switches; Door latch switches upper and lower test good - open, and closed when switch depressedMonitor switch tests good - closed, and open when switch depressed. Any ideas and help is much appreciated.

Hi @mrtputt , Check if the vent thermostat part #4 is OK.