We had a lighting strike near by the other night. Now, the oven keypad and light works but after I set the temp and hit start, it will not cut on and returns to the time. The convection fan sometimes engages for a few seconds before shutting off too. I think there was initially an error code of P3 or P4 on the display. Is this possibly a sensor or do I have to replace the entire keypad controller? Thank you, Chaz