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Its threaded connection ensures a secure
including the "Blue" series and Sensi models
Key Benefits Broad Compatibility: Acts as a direct 120VAC replacement for a wide range of OEM carbide-style ignitors in residential and commercial heating equipment
Disconnect the sensor from the control board and measure resistance with a multimeter
Armstrong Furnace R43203-002 HSI Ignitor Its threaded connection ensures aThe Armstrong Furnace R43203 002 HSI Ignitor is a critical OEM replacement component engineered for precision ignition in Armstrong Air and Lennox family gas furnaces. As a high performance hot surface ignitor (HSI), this part is designed to reach the specific ohm range and temperature necessary to ensure consistent pilot free furnace ignition without tripping flame sensors or causing delayed ignition sequences. This genuine Armstrong replacement part