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The LOCHINVAR L100304138 KHB199 Main Control Board is a critical component designed for specific heating systems. This main control circuit board ensures proper operation and management of Knight Model KHB 199 and WHB 199 units. It serves as the central processing unit, regulating various functions to maintain system efficiency and performance. This replacement part is essential for maintaining the functionality of compatible Lochinvar boilers.
Essential main control board for Lochinvar Knight and WHB 199 models.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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