The blower motor plays an extremely important role in forced-air systems. It’s the trigger that circulates conditioned air throughout the home. Blowers in older furnaces generally employ single-speed ...

Q: My furnace recently started making loud noises and seems to have weak airflow. I think the blower motor may be going bad, but I’m not sure. Is it better to replace my blower motor or buy a new ...

The motor calculations presented here apply to changing conditions of a blower motor when pulley adjustments are made. However, these calculations are useful wherever electric motors are used. These ...