Glenn for Model Number GY397LXUQ03 Everything except the oven element works on the unit. The element has continuity and it's showing 25 ohms of resistance. On the touchpad all buttons work except bake, warm and favorite. Pressing them doesn't result in a tone. Broil does result in a tone and the upper element comes on. I've removed both the circuit board and the touchpad. I don't see any obvious signs of a hot spot on either and everything looks good on the ribbon cable between the touchpad and the circuit board. I'm trying to figure out if this is the touchpad or the circuit board.
Answer Glenn, the touchpad assembly would need to be tested for continuity at the ribbon harness based on each button selection to identify if the failure is in the main control WP8507P390-60 or touchpad WPW10207930. With the power cord unplugged and the ribbon of the touchpad accessed, the bake button would be pressed while testing from pin 7 to pin 15 on the ribbon. If there is not continuity, the touchpad has failed. If there is continuity, the main control has failed. Read More... Answered by AppliancePartsPros.com | Tuesday, October 20, 2020