When troubleshooting furnace ignition failure or E207 error codes

This comprehensive furnace circuit board upgrade is designed to replace obsolete Heatcraft boards

This OEM Carrier replacement part is engineered to open the electrical circuit when the internal temperature reaches 125°F

Contractors can rely on its durable construction for limit switch troubleshooting and long-term field stability in demanding commercial or residential electric heaters

is a high-performance thermal loading valve element designed for solid fuel boilers and biomass heating systems

Lochinvar & A.O. Smith 100187866 Burner Assembly 320734-701 When troubleshooting furnace ignition failureThe Lochinvar & A. O. Smith 100187866 Burner Assembly is a precise OEM replacement part engineered for high efficiency commercial and residential water heating systems. As a veteran technician knows, maintaining combustion stability is non negotiable for system longevity, and this 10,000 to atmospheric rated assembly ensures the correct fuel to air ratio for clean, consistent ignition. Designed as a direct fit for specific A. O. Smith Cyclone and