Microwave light and fan goes off until door is slapped.

https://www.repairclinic.com/UserManual/75608c343f8549028da3cf6e0814364c/Maytag-Microwave-Repair-Manual-MMV5100AAB-MMV5100AAQ-MMV5100AAS-MMV5100AAW.pdf

There are a couple of microwave ovens out there where after it has finished cooking, the light and fan continue to run until you open the door. Then the fans shuts off, but the light remains on. When you close the door, then the light shuts off. If the light and fan go back on when you close the door, then you have a bad door switch.

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Key clue is table does not move---All microwaves with a table have a lever switch that is engaged when door closes--only can get at from inside the unit----it prevents the unit from operation if door not closed.

What happens from closing door a lot is the switch with a lever arm can come loose or even if snapped into a plastic holder break out of the holder.

IF this it is not too expensive a repair.

The door switches are more than likely the problem, one or two will need to be replaced, I recommend a professional.

Sounds like door switch problems or bad wires or connections at the door switches

Mine also does the same thing however I only need to lift the door upwards slightly (after it's closed) and it engages the High Voltage Transformer, thus working as normal.

Once you know that, you can get it to work every time. I beleive the clips on the door don't properly stop latch in correctly and the safety feature keep the microwave from acutally turning truly "ON".

Could be a blown fuse in the HV transformer primary circuit,bad connections to the magnetron filament,open thermal protector or thermal fuse,

Microwaves are pretty much a non repair item. It will cost you more to fix than it would to replace.

The circuit board is faulty. It should be covered under the warranty. Call GE or the place of purchase.