Trips the circuit

I called GE about a unit running for 2 seconds and stopping, then stating the date and time needed to be entered. They agreed to pay for parts if I pay for labor. One repairman said it may be the manatron seal leaking and allowing microwaves to hit the control panel. He suggested removing the screws in the upper grill and then losoign one or two screws that hold the control panel in place. Tip it forward and try running the machine. If it runs okay, then the seals are the problem. I plan to try this tomrrow (it's in a rental unti) and take it in Monday to a shop.

Jim Alex