and 21-483 models

troubleshoot the pressure switch and the ignition control module

you know that a reliable York S1-7975-388P/A Flame Sensor is the frontline defense against hazardous unburned gas buildup

you need a direct replacement fan blade that provides the exact airflow required to keep head pressures within spec

What causes a thermocouple signal to get weak in high-heat applications

MARS 00351 Motor Els PW 17895 and 21-483 modelsThe MARS 00351 is a high reliability shaded pole condenser fan motor engineered for demanding HVACR applications. Operating at 115V with a power rating of 25W (alternatively rated up to 35W in specific configurations), this 1500 RPM motor features a clockwise (CW) rotation and a 51 frame size, making it a versatile drop in for various refrigeration and ventilation systems. Built with a 1 4 inch diameter shaft and cast iron unit bearing construction,