Product Information
Control Unit
Compatible with 7 equipment models
- T9800SE 160 Greentherm T9800SE 160 Tankless Water Heater
- T9800SE 199 Greentherm T9800SE 199 Tankless Water Heater
- T9800SEO 160 Greentherm T9800SEO 160 Tankless Water Heater
- T9800SEO 199 Greentherm T9800SEO 199 Tankless Water Heater
- T9900iSE 199 Greentherm T9900iSE 199 Tankless Water Heater
- T9900SE 160 Greentherm T9900SE 160 Tankless Water Heater
- T9900SE 199 Greentherm T9900SE 199 Tankless Water Heater
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.
Bosch Control Unit (part number 8738725959) is a factory spare control module intended to restore central control and on‑board diagnostic functions for Bosch heating and cooling equipment. Engineered as a parts‑level replacement, it returns system supervisory, fault reporting and control interfaces used by Bosch indoor units and air handlers. Technicians can service and monitor the module using Bosch diagnostic tools and the EasyAir platform for streamlined troubleshooting. (bosch-homecomfort.com)
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