Common Questions & Technical Support What are the signs of a cracked heat exchanger in this model

Versatile Application: Robust enough for pump relays

This integrated furnace control module is engineered to withstand the thermal stressors of the cabinet environment

non-spring return direct-coupled actuator designed for precise control of HVAC dampers and small valves

Lochinvar & A.O. Smith 100113153 Wire Harness 318973-401 Common Questions & Technical SupportThe Lochinvar & A. O. Smith 100113153 Wire Harness is a critical OEM replacement part designed for high efficiency condensing boilers and commercial water heaters. This specialized flame sensor wire harness ensures stable signal transmission between the flame electrode and the integrated control board, preventing nuisance lockout codes caused by high resistance connections or insulation breakdown. Built to withstand the high temperature environment of