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1 No power after 20amp fuse blown and replaced
Hello, second time I've tried to fix our microwave. First time successful... one of the door switches failed and blew the 20a fuse. I was able to replace the door switch and fuse and it worked again for over a year now.
This time, fuse blew again so I took it apart. The three door switches all test okay: clicking correctly and continuity test check out whether normally open or normally closed. Replaced the 20a fuse again, but when plugged back in there's no power to the control panel. Fuse is good and there's continuity across the fuse to the other contact.
The two thermal cut offs directly behind the control panel test ok, but I haven't been able to reach the "Cavity Thermostat Cutout" for testing. The unit shouldn't have reached anywhere near the 230F temperature listed to blow that, but I guess it's still possible this has failed.
Other possibilities? I see a H.V. Trans Fuse listed and it could possibly be a bad Magnetron. These or possibly a new control board?
I'm reaching the limit of my abilities as a non-licensed/weekend hack/cheapskate just trying to keep a microwave running. Time to just spring for a new one and play the "disposable appliance" game?
Thanks for any insight
crwdns2934109:0crwdne2934109:0
1.5crwdns2936485:0crwdne2936485:0 
crwdns2944067:02crwdne2944067:0
I don't have much insight, Microwaves are not my forte, but I wanted to commend your dedication. Usually I would have said check fuses since that's about as far as I go into microwaves but you're well beyond that. :/
crwdns2934271:0crwdnd2934271:0 Alisha C crwdne2934271:0
@mrerik "Time to just spring for a new one and play the "disposable appliance" game" no way! I know there are some pretty smart people that are going to be looking at this. Let's put our heads together and get this fixed. Patience ;-)
crwdns2934271:0crwdnd2934271:0 oldturkey03 crwdne2934271:0