When Your Air Conditioner Stops Blowing Cold Air
Heating and Air Conditioning | Kingston | Heating and Air Conditioning in Kingston
Case Overview
A homeowner in Kingston noticed their living room was not getting cool, even though the outdoor unit was humming along. They spotted a bit of frost on the refrigerant line and shut the system off to avoid damage. With the fan inside refusing to turn on, they reached out to HEP for help.
How the Issue Was Diagnosed
Our HEP technician began by checking power at the air handler and confirming that the control signal was present. Despite proper voltage, the indoor blower did not spin. By swapping out the thermostat call and jumping the blower circuit directly, it became clear the fan motor itself had failed.
This image shows a newly installed indoor air handler unit with neatly wrapped ductwork and a fresh condensate drain line.
The Repair Process
- Removal of the Old Motor: After cutting power, the technician removed the faulty blower motor from the air handler housing.
- Installation of a New ECM Blower Motor: A high-efficiency ECM motor was bolted into place, offering better speed control and energy savings.
- System Testing: With the new motor hooked up, airflow returned immediately. The outdoor unit cycled normally, and cool air flowed through the registers.
Here you can see the evaporator coil after a routine cleaning—free of dust and debris for optimal heat exchange.
Tips for Homeowners
Keeping your HVAC running smoothly often comes down to simple preventive steps and knowing when to call a professional.
1. Watch for Frost or Ice:
Light frosting can indicate low airflow or a dirty filter. Turn off your system and schedule an inspection if you spot ice forming on refrigerant lines.
2. Change Filters Regularly:
A clogged filter forces the blower to work harder and can lead to motor burnout. Aim for a filter change every 1–3 months, depending on usage.
3. Keep the Air Handler Area Clear:
Ensure the closet or mechanical room around your indoor unit is free of dust, boxes, and stray tools. This allows the blower cabinet to breathe and simplifies technician access.
Technicians rely on precise measurements to verify voltage, amperage, and temperature differentials for accurate troubleshooting.
4. Annual Professional Tune-Ups:
An annual visit from an HEP technician can catch small issues—like a weakening capacitor or a worn belt—before they lead to a breakdown.
5. Understand Your Warranty and System Age:
Even well-maintained systems have a lifespan. If your air conditioner is over 10 years old, discuss long-term options during your service visit.
By combining careful observation, the right tools, and timely maintenance, you can help your HVAC system deliver reliable comfort all summer long. For any cooling concerns in Kingston, trust HEP for expert service and clear guidance.
Published on September 16, 2025
