How to Troubleshoot & Replace Frigidaire AP6230614 / 5304509459 Door Switch

After doing some research the problem appeared to be the door safety switches. I ordered 3 new ones to replace all the original ones. Some minor disassembly of the microwave front was required to reach the fuse and switches. To reach the switches the control panel wires needed to be unplugged and the panel removed. After doing that replacing the switches was pretty strait forward. As of this comment the microwave has worked for 5 days without blowing the fuse so far. This has probably fixed the issue. 

Replaced the middle switch of the door latch. 

I ordered these parts. Found the latch was worn from use of opening and closing the door. Also replaced switches as one would stick sometimes. Put back together works like a charm. Also you don't have to remove microwave from wall to fix and while in there check fuse. Make sure to unplug before working on it. 

I called local suppliers and they didn't have the parts, so I got on the internet and found appliance parts pros.com and they had my parts at my front door in 24 hours. I love this company. YOU don't realize how much you use a microwave till it's broke down. My wife thinks I am a hero. THANKS. 

Replaced switch on door handle. 

Replace all door switches, one was bad, since the unit was apart I ordered all 3, the manufacturer has a sticker that also recommends this. 

I ordered the three parts that potentially would have to be changed per a YouTube video I watched: the fuse, the primary interlock door switch and the monitoring switch. The video online told how to test which part might need to be replaced using a mentimeter (taking the microwave apart and testing continuity with the mentimeter took more time than replacing the part!). However, the mentimeter did save me from having to open the other packages, so I can return them. Always pleased to save money and have the correct parts for the job! Thanks! 

I checked the door switches with a meter and determined one was not working properly, replaced broken switch. 

At first the microwave would occasionally trip the breaker when we opened the door early. Then one morning it would not run at all without tripping it. Took off the front panel and found the middle of the 3 door switches was sticking. Multimeter showed the switch as reading open even with button pressed. Ordered a replacement and microwave has been working great since. 

Replaced all 3 door interlock switches.