including those requiring part 626518A

While cleaning with a fine abrasive pad (like a dollar bill or steel wool) can temporarily restore function

failing inducer motor

and WB series units utilizing a direct mount flame sensor

Cleveland Controls AFS-145 Switch including those requiring part 626518AThe Cleveland Controls AFS 145 Air Pressure Sensing Switch is an industry standard, general purpose proving switch designed for combustion air pressure monitoring in package burners, furnaces, and high demand HVAC systems. This adjustable differential pressure switch features a wide setpoint range from 0. 05" to 12. 0" w. c., allowing for precise field calibration to match specific fan curves or duct static pressures. Built with a rugged zinc plated