When I saw your thread title and then read that it was a Suburban oven, I understood completely. They are a POS.
I have a SRNA3LBBE model and have a slightly different problem the solution of which has been elusive to all except God himself. The RV is now at the dealer for a replacement of the whole bl*sted stove and oven, under warranty.
Ever since we got this garbage oven it would shut down sometime after reaching demand temperature. The pilot light lit well enough and the burner would come on, but when the oven reached temperature the burner would turn off (as it should) but then would not come back on when the termperature fell too low since the pilot was extinguished in the meanwhile. In other words the pilot light does not stay on after 1 cycle of the burner.
I brought it to the dealer and they said that there were problems with Suburban ovens and in some cases they had to change the thermocouple, in others they changed the manifold and in some cases they changed out the whole stove. Well my oven has now been through all three "solutions" and I hope that by this time next weekend I would have solved it after almost 9 months.
Funnily when I brought it in for the manifold swap, another customer was also at the dealership with the same issue in his new V-Lite. We both had the new manifolds put in (different models) and both failed to solve the problem.
Never had a minute of problem with the Atwood stove / oven in the previous RV.
OP - Good luck on finding a solution to your problem.