I have an F3 Error code on my GE Spacemaker XL1400 microwave (Manufactured 1998). So far, my research indicates that I need to replace the key panel. None of the buttons work on the microwave at this point with F3 displayed constantly. This happened a few months ago and eventually it cleared as long as I didn't try to set the clock. Basically nothing was on the display but the buttons worked and the microwave heated fine. F3 is now displayed and microwave doesn't work. I want to purchase part# AP2026078 for my black microwave - but I want to confirm I am ordering the correct part based on my error code. Please Help...

Thanks