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Parts for GW395LET501 - AppliancePartsPros.com

There seems to be a problem with the given model number so you will have to choose a unit from the Matching Model Numbers section.
Are you sure it is 501 or is it S01?

See the attachment for the tech sheet.

Could be the bi-metal thermostat has opened killing power to the board.
I think this is item 37 in section 03 but am not 100% sure.
So also take a look at thermostat item 23 in section 03.
One is for power to the control board and the other is for the fan so you should be able to tell which does what by tracing the wires, the correct one should have two black wires going to it.

Remove power from the unit and check it with a meter, should be 0 ohms.

If blown replace it and then also check that the cooling fan works and that the actual oven temperature is close to the set temperature.
Sometimes they just blow but other times there can be a cause.