One of the most important components within your HVAC system is the blower motor, which circulates air through the unit and into your home for heating and cooling purposes. For the average homeowner, determining whether or not your blower motor is having trouble can be difficult. To help you make sense of things, Tom Hundley Heating & Cooling of the Tulsa Metro area shares three ways to diagnose a faulty HVAC blower motor and keep your system in top shape.

How to Diagnose a Faulty HVAC Blower Motor

Power Supply

The power supply supporting your HVAC unit is essential to all its functions. The appropriate amount of voltage must be moving through the system to keep the motor running. Inspect the transformer as well as the circuit breakers to see if there is any evidence of failure or blown fuses.

Windings

Windings are electrical conductors that enable motor function in your HVAC unit. Measuring the ohms—a unit of measurement for electrical resistance—is the next step in troubleshooting, but you’ll probably need to enlist the help of a professional. Your HVAC technician can use an ohmmeter to check the wires and windings. If the ohmmeter reads zero, the motor winding has shorted out. If your technician spots an infinity symbol, your system has an open motor winding.

Capacitors

Capacitors assist motor function with more torque, or, more fan speed and power. For the blower wheel and fan belt to function, they require a certain amount of torque. Without them, the motor won’t work either. An HVAC professional can assess these parts and determine whether they need replacement.

Tom Hundley Heating & Cooling has been the leading authority for HVAC services in the Tulsa Metro area for 37 years. Owned by Tom and Pam Hundley, the company prides itself on personalized customer service for all heating and cooling installations and repairs. To learn more about this fully licensed, bonded, and insured HVAC company, give them a call at (918) 455-5993 or visit them online.