FIXED AMV2307PFS4 Whirlpool microwave tripped the breaker - E1F4

[Mcnabb75]

Model Number

AMV2307PFS4

Brand

Whirlpool

Age

More than 10 years

Microwave started out just tripped the breaker. Found a bad door switch. Went ahead and replaced all the door switches. Put the unit back together, plugged it in, shut the door, and the F1E4 error code popped up.
Found the error to point to the main control board.
Got another board and the same error code popped up.
At one point I had checked the switches but forgot to close the spring latch back into place, so the top latch would not catch. At this point I could set the clock but obviously closing the door did not do any good. Pulled the latch back into place, microwave plugged in, shut the door and the error code popped up.
I ,for the life of me, can not figure out what I wired wrong on the first go around. Or did I get a bad board.
I compared the old switches to the new ones and it appears I did it correctly. But obviously something it a miss...
Microwave schematics are my Achilles heel. Have a big mental block on primary and interlock switches.
Pictures attached aren't great, they are before pics. This is how I wired the new ones as well. Just took them for quick reference. Didn't think I would be need well taken pictures.

Any advice is much appreciated.

Thanks

 

[Wx4usa]

There is an error that comes up when the wires on the relay on the main control board are reversed. Try swapping them. Image attached. Just reverse what you have and try it. If that doesn’t rectify it, let me know. And make sure spring latches are correct.

 

[Mcnabb75]

Well crud on a cracker. Hopefully that is correct, sir. Thank you.
I will let you know for sure.

 

[Mcnabb75]

There is an error that comes up when the wires on the relay on the main control board are reversed. Try swapping them. Image attached. Just reverse what you have and try it. If that doesn’t rectify it, let me know. And make sure spring latches are correct.

OMG, that was the issue. Thank you! I have taken out so many microwave boards and did not know, obviously, that this was even possible. Is it a polarity issue with the relay or something?

 

[Wx4usa]

I am very glad that worked. I have done it many times myself. The WHP family of MW control boards seem to be smart in that aspect. They know if the wires are backwards.

 

[Mcnabb75]

Will have to add that to my picture taking protocol.
Thanks again!

 

[Wx4usa]

My pleasure!