Description
Lochinvar & A.O. Smith 100277770 K Control for FB1501-2001
The Lochinvar & A.O. Smith 100277770 is an OEM replacement K Control designed specifically for FB1501-2001 series boiler and water heating equipment. Engineered to maintain precise operational management of your heating system, this control module ensures reliable ignition sequencing, temperature regulation, and system safety functions that your Lochinvar or A.O. Smith unit depends on.
Key Features
- OEM replacement K Control for Lochinvar & A.O. Smith FB1501-2001 series equipment
- Engineered for precise boiler and water heater system management
- Supports reliable ignition sequencing and operational control
- Designed for direct drop-in replacement — no modifications required
- Maintains system safety and temperature regulation functions
- Manufactured to original equipment specifications for consistent performance
Application
This control is intended for use with Lochinvar and A.O. Smith FB1501-2001 series boilers and water heaters. Always verify compatibility with your specific unit model and serial number before installation. For best results, installation should be performed by a qualified HVAC or plumbing technician in accordance with local codes and the manufacturer’s installation guidelines.
Why Choose OEM Controls?
Using genuine OEM replacement controls like the 100277770 ensures your heating system operates within designed parameters, preserving equipment warranty, maximizing efficiency, and reducing the risk of nuisance lockouts or premature component failure.







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