sounds like a self resetting circuit breaker or a thermal switch
circuit breakers work by breaking the circuit when they get hot- which usually indicates high current running through them
this one may have gone faulty and is tripping too early ( most likely) and then resetting- OR it could be protecting you from a big repair bill
I know electrics and electronics- in your shoes I'd be looking for someone familiar with this issue
search youtube as well
I didnt watch this through but you might:
mike