This Armstrong Air HVAC part eliminates common ignition failure codes and short-cycling issues caused by worn or fouled sensors

Check for a weak pilot flame that isn't fully engulfing the top 1/2 inch of the thermocouple

you eliminate the alignment and vibration issues often seen with universal alternatives

Refer to the internal unit diagram for terminal mapping

Lennox 72W34 Gas Valve Els PW 29614 This Armstrong Air HVAC partLennox 72W34 is a modulating natural gas valve designed for use in compatible Lennox heating systems, including furnaces and commercial HVAC equipment. It regulates gas flow to the burner assembly, allowing precise modulation based on heating demand for stable combustion and efficient system performance. This modulating gas valve is commonly used as a replacement component when the original valve becomes faulty, leading to improper flame control,