Product Information
Main control board subassembly
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Main control board subassembly is the serviceable electronics module for Bosch HVAC equipment, consolidating control logic, I/O terminations and replaceable components into a single factory-configured unit to simplify field repairs and reduce downtime. Intended for authorized service technicians, it enables fast swap‑out and easier troubleshooting. I could not find part number 8733956581 on Bosch North America sites; Web‑ETK lists a “Main control board subassembly” (ordering no. 8 733 500 780) as the closest catalog match. (bosch-homecomfort.com)
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