Bosch 800 Series Convection Microwave Oven

Microwave Repair
1

Brand: Bosch
Model Number: HMC80252UC/01
Main Symptom: Display Went Out
What happens & when: Replaced circuit board, worked for 4 months, display went out again (In Wall Convection Oven/Microwave Unit)

Error Code (if any): No error code/no display
Parts or tests already tried: New circuit board, worked for 4 months
Photos / video link:

2

If it worked for 4 months and went out again, I would see about getting it replaced under warranty, sounds like it is the same part that failed.