Lennox 23M20 Temp Sensor 326070-701 The heat exchanger itself is

The heat exchanger itself is compatible with both natural gas and liquid propane combustion

Verify the inducer motor is reaching full speed and check for vent blockages or moisture in the pressure tubing

blower coils

This specific HVAC high limit switch is often identified by the manufacturer designation 8402-049BX and is cross-referenced as a direct replacement for discontinued Bard temperature controls in various WA and WE series models

Lennox 23M20 Temp Sensor 326070-701 The heat exchanger itself isEngineered for high precision environmental control, the Lennox 23M20 is a commercial grade averaging zone sensor kit designed to provide stable temperature data to Prodigy and CORE Unit Controllers. This wall mounted, non communicating solution utilizes a 22k NTC thermistor to eliminate hot and cold spots in large open plan spaces or multi zone environments. Operating within a 40F to 95F range, the Lennox 23M20 Temp Sensor maintains an impressive