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What furnace models are compatible with the 903903
High-Temperature Versatility: The 100/240 degree range is ideal for high-limit or operating control in hot water and steam systems
the Watts Series FLT-C design offers the mechanical reliability required by HVACR contractors
Contractors utilize this furnace control board for troubleshooting HVAC flame sensor issues and resolving gas valve relay failures
Lennox 17W82 Control Board Els PW 17895 What furnace models are compatibleThe Lennox 17W82 Control Board (LB 91097C) is a critical OEM ignition control replacement kit designed to upgrade and restore functionality to Lennox gas furnaces utilizing older EGC 1 or EGC 2 modules. This 24V microprocessor based board manages the direct spark ignition (DSI) sequence, ensuring precise timing for the combustion air blower, gas valve, and indoor fan. As a veteran grade furnace circuit board replacement, it includes the 100980 01