Lennox 18K44 Limit Switch Els PW 17895 Key Benefits Precise Field Calibration:

Key Benefits Precise Field Calibration: Easily adjustable set point range from 0

The high-grade construction resists the corrosive flue gasses and thermal stress common in condensing furnace environments

Will this board fix a heat pump that is blowing cold air in heat mode

and 400 series within the UDAP

which can damage the internal copper lead or the insulation

Lennox 18K44 Limit Switch Els PW 17895 Key Benefits Precise Field Calibration:The Lennox 18K44 Limit Switch is a high reliability OEM replacement normally closed safety control designed for precise thermal management in residential gas furnaces and air handlers. This auto reset limit switch is engineered to maintain system integrity by monitoring internal plenum temperatures. It is calibrated to an open on rise (cut out) setpoint of 280F to prevent thermal overload and a close on fall (cut in) setpoint of 250F for automatic