Reznor 195292 Flame Sensor 4.25

Flame sensor for Reznor gas-fired unit heaters, measuring 4.25 inches in length and manufactured by Nortek for Reznor. This OEM replacement part is designed for commercial unit heater applications running on natural gas. It functions as the ignition/flame rod that confirms burner flame presence to the control board, allowing the system to maintain gas valve operation during normal firing sequences. This part is compatible with Reznor equipment and is intended as a direct OEM replacement, part number 195292. Failing flame sensors commonly produce symptoms such as the furnace lighting then shutting off, intermittent ignition, short cycling, control lockout, no ignition, or loss of flame signal during operation. Installation requires a qualified HVAC technician, as improper mounting or wiring can affect flame sensing accuracy and burner safety operation. Verify unit model compatibility before replacement.