John S Waynesburg , PA September 20, 2025 Appliance: General Electric Microwave PVM1790SR1SS Ge Microwave Pvm1790sr1ss: Microwave fan came on when the door was open. How to replace Door Interlock Switch. Replaced microwave door switches and mount The difficulty was midrange ( I can’t move slider- below) Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes