Hello and thank you for the opportunity to help you.
When you say it loses power, do you mean the display goes dead or everything, including the inside cavity lights are dead too when you open the door?
I'm sorry, I asked two questions.
When it goes dead, does the display go blank only
Does the display go blank AND the internal cavity lights go out too.
The display go blank AND the internal cavity lights go out too.
Thank you. This sounds like a control board issue or a wiring issue. You did say the GE guy did something with the wiring. Do you remember what his prognosis was?