My double wall oven makes a strange clicking sound while in operation. It is coming from behind the control panel on the top and is only present while the upper oven is on. I would think that some relay clicking would be normal while the heating element is being switched on and off. This clicking seems way too frequent (even rattling) and actually slows down the heating time for the upper oven. I have taken the control panel off and tried to isolate the problem, but the unit stopped making the noise with the front panel off...

Any thoughts or insights would be appreciated.