If the blower motor does not run but receives power, what are the possible causes according to the technicians?

When the blower motor is not running but is receiving power, there can be multiple potential issues at play. One possibility is that the ground connection of the motor is compromised. A bad ground can prevent the motor from completing its electrical circuit, resulting in a failure to operate. Even if the motor is receiving power, a poor ground connection can disrupt the operation.

Another potential cause is a burned-out motor. A motor that has experienced internal failure or wear may not function even when voltage is present. This can happen due to various reasons, including overheating, age, or excessive load, leading to the motor winding failing.

Both of these conditions are legitimate technical issues that could result in the blower motor remaining inactive despite receiving power. Understanding these possibilities is essential for diagnosing issues with blower motors effectively, as they influence the troubleshooting approach taken by HVAC technicians.