Product Information
Main control board subassembly
Please note: Hydrowest Products Ltd. is a wholesale distributor and sells exclusively to licensed contractors and trade professionals.
Fast Shipping
In-stock orders ship within 1 business day to anywhere in Canada.
Code-Compliant
All products meet Canadian HVAC and gas code standards.
Wholesale Pricing
Trade pricing for licensed contractors. 40+ years in the industry.
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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