When you are troubleshooting a dead blower or an inducer motor that is humming but not turning

and Xtherm series commercial heaters

Flexible Mounting: Lightweight

55" pressure switch offers the reliability needed for commercial heating equipment and residential power-vent units

the 64W86 provides the robust reliability required for professional HVAC maintenance

Lennox 46K12 Fan Blade 321042-401 When you are troubleshooting aWhen you're out on a service call for a Lennox condenser, a vibrating or imbalanced fan can lead to premature motor failure. The Lennox 46K12 Fan Blade is the direct OEM replacement designed specifically for heavy duty outdoor units. This 18 inch HVAC fan blade features a 4 blade configuration with a precise 24 degree pitch, engineered to maintain the original static pressure and cooling capacity of the system. Built with a 1 2 inch bore hub, it