Steve November 14, 2017 for Model Number pvm1870sm3ss I have microwave PVM1870SM3SS with a vent door which won't close after using (opens/closes continuously until forcibly held closed). I tried replacing part 57, 58 (cam louver and drive motor) to no avail. I saw a You Tube video showing the exact issue I have and one of the comments said fix was "easy", just replace defective switch. He did not identify which switch. I have order part 54, 55 (microswitches). Any chance these are the correct switch (assuming the gentleman was correct)? If he wasn't do you have any suggestions? Thanks, Steve
1 Answer Steve, The louver moving in and out would indicate that the relay on the control board is sticking and would need to replace the control board of the unit. Read More...