Common Questions & Troubleshooting

The brushless DC motor

this motor uses robust internal components to handle high duty cycles

featuring a 25-degree pitch and 3-blade configuration to maximize CFM while maintaining stable static pressure

Thermal Stability: Features high heat resistance properties to prevent degradation in high-limit steam environments

Lennox 13W23 Limit Switch 319847-401 Common Questions & TroubleshootingThe Lennox 13W23 Limit Switch is a critical OEM furnace safety control engineered for precise thermal monitoring in residential and light commercial HVAC systems. This auto reset limit switch is calibrated with an 80F cut in and a 140F cut out, functioning as a primary fail safe to interrupt the burner circuit if heat exchanger temperatures exceed safe operating parameters. By utilizing a genuine Lennox replacement part, technicians ensure the blower