Bosch use double wall oven control board in single wall oven

I have an HBL8450UC/10 single Bosch wall oven and the main control board is pretty old with two failed relays. I got a control board from eBay, which is for a double oven of the same generation. I'd like to use it, because it is much newer. The PCB is the same but of course double the number of relays are populated. Unfortunately the board does not work in the single oven. The fan runs all the time. Is there some simple trick to convert it into a single board? How does the microcontroller...

Read more

via Bosch use double wall oven control board in single wall oven
by guho