Thread: Jenn Air Oven turns off during preheat

My Jenn Air single wall oven shuts off during the preheat cycle. I can post the Model Number when I get home. Here are the symptoms:

1. When entering bake, broil, convection or clean, the oven asks for the temp (or time in case of clean)
2. I can set the temperature and the preheat indicator is shown on the display
3. The appropriate element(s) heat up
4. Within several seconds, a relay clicks off (sounds abnormal, like a real quick buzz)
5. Several seconds later the oven display goes back to the time only

How I get it to work in bake mode (but will also work for other modes):

1. Press Bake
2. Enter Temperature
3. When I hear the abnormal relay click/buzz, press Bake and set temp again
4. I have gotten good at distinguishing between the good relay click of the upper and lower element relays (duty cycle dependent on mode)
5. After fiddling for about 5 minutes with this, the oven gets up to temp and will work fine

I have the wiring diagram and suppose the problem could be the main PCB relay (DLB). But I also suppose it could be the control board that tells the relay to close.

The sensor checks out okay.

I haven't jumpered the high limit switch.

Questions:

1. Suggestions on how to troubleshoot further?
2. If it is the relay, any ideas on where to find a replacement part? The Part Number is T91P1D22-18F07