Control board service — modern ovens have complex electronic boards controlling all functions (heat, timer, auto programs, pyrolytic cleaning).
See if any of these signs match your device — each one increases the likelihood of this fault.
These are the causes we encounter while repairing Electronic control board failure — ranked from most to least common.
Voltage spike burnt capacitors on board
Lightning or sudden voltage rise
Moisture in control board
Software/firmware bug
Loose connector between board and main components
Excess heat from bad cooling fan failing board
Any of the following = a danger signal — call now and don't try to fix it yourself.
On-site diagnosis, clear pricing before any work, and a documented 6-month warranty.