Lennox 10H14 Blower Pulley 321042-401 the system maintains consistent humidity

the system maintains consistent humidity levels

Use the top adjustment screw

the board is likely at fault

this mechanical temperature control protects against thermal damage by monitoring air duct temperatures

Lennox 10H14 Blower Pulley 321042-401 the system maintains consistent humidityWhen you're out in the field dealing with a slipped belt or a noisy drive assembly, the Lennox 10H14 Blower Pulley is the exact OEM spec you need to restore proper HVAC airflow performance. This high durability cast iron finished bore pulley is engineered specifically for Lennox, Allied, and Armstrong air handlers. Featuring a 4. 45 inch outside diameter and a precise 5 8 inch bore, this 1 groove blower pulley provides the exact torque transfer