Single Thermador oven thinks it's a double

Hello! I have a single ~13 year old electric Thermador oven (model number plate is too dirty to read). When I try to turn on convection bake it gives the following error "Not available in lower oven". I had a technician come out several months ago to fix the same issue and he resolved it by pressing a series of buttons on the panel (no disassembly, no breaker reset), presumably to reset the oven and "remind" it that it's not part of a double system. He got the "code" from calling a Thermador...

Read more

via Single Thermador oven thinks it's a double
by karttyler