Blower motor not running

The indoor blower does not operate when it should.

Air Side

high

Diagnosed here

Indoor Blower Will Not Run
Troubleshooting
Tracing a dead blower across PSC and ECM equipment without guessing at parts.

Possible cause

Relay
Component
A low current coil switching a higher current load, and the relay types you meet in HVAC controls.
PSC Motor
Component
The permanent split capacitor motor used in many blowers and condenser fans, and how it behaves as duct resistance rises.
ECM Motor
Component
Electronically commutated motors, the difference between constant torque and constant airflow, and how to troubleshoot them.

Local Code Notice

HVAC installation, venting, combustion air, ventilation air, gas piping, clearances, termination locations, electrical requirements, permits, and equipment requirements vary by jurisdiction and equipment. Always verify the applicable local codes, adopted code edition, regulations, permits, and manufacturer installation instructions before installation or service.