On a freezing day in Ballston Lake, it can be concerning if your furnace is blowing cold air. You rely on a powerful heating system to keep you warm and comfortable during the Upstate New York winter. Luckily, this cold air doesn’t necessarily mean you have failing equipment.
Read on as the HVAC team at Suburban Services Group describes the most common causes for these furnace issues, as well as signs you may need professional furnace repair.
Common Causes Of Cold Furnace Air
There are many reasons why your furnace may be blowing cold air. The following are the most common causes.
Incorrect Thermostat Fan Settings
Your thermostat has two primary fan settings: Auto and On. If the fan is set incorrectly, you may feel cold air from your vents when the furnace isn’t actively heating.
Check that the fan is set to Auto. If it is set to On, the blower will run continuously, even between heating cycles. As a result, the system circulates room-temperature air which can feel cool.
Dirty Or Clogged Air Filters
A dirty filter can prevent enough air from moving through your furnace. This can then cause the system to blow cold air or stop delivering heat consistently.
These dirty filters also contribute to poor heating performance, longer run times, and uneven temperatures.
Pilot Light Or Ignition Problems
If your home has a gas furnace, it needs a reliable ignition source to light the burners and produce heat. Cold air from your vents could mean that you have an extinguished pilot light, a faulty igniter, a malfunctioning flame sensor, or a gas supply problem.
Overheating And Safety Shutoffs
Restricted airflow can allow heat to build up inside the system’s heat exchanger. This may cause the system to overheat and activate the safety limit switch that shuts off the burners.
If the blower continues to run, the air that comes out of the vents will be cool. Luckily, this can be solved with frequent filter changes.
When Cold Air Is Normal
There are some situations where cold air from your furnace is normal.
Airflow During The Startup Cycle
When the thermostat tells your furnace to turn on, it may not begin to deliver warm air instantly. The system will need time to ignite the burners and warn the heat exchanger first. If your blower starts before the heat exchanger is fully warm, you may feel cool or room-temperature air. However, this should be brief.
Cool Air After Heating Ends
Similarly, the system’s blower may continue to run for a short time after the burners shut off. This is to continue circulating air and remove residual heat from the heat exchanger. This air will become less and less warm as the system cools.
Signs Your Furnace Needs Repairs
For many homeowners, cool air from their vents does not require professional furnace repair. However, you may want to call Suburban Services Group if you are struggling with:
- Repeated cold-air episodes
- Uneven heating
- Short cycling
- Long heating cycles
- Weak airflow from vents
- Strange sounds or odors
- Increasing energy bills
How Technicians Diagnose Furnace Problems
At Suburban Services Group, our highly-trained team can diagnose even the most complex furnace problems. We’ll start by reviewing the symptoms and your thermostat settings before inspecting the air filter and overall airflow.
Then, we check the ignition sequence and burner operation to ensure that the system is working properly. We test electrical components, safety switches, and more while also measuring heating performance.
This thorough assessment helps us find the root of the problem to deliver the right solution for your home.
Preventing Future Furnace Heating Issues
Want to prevent furnace problems for your home? Follow these simple tips:
- Replace air filters regularly
- Schedule annual furnace maintenance in the fall
- Check thermostat settings often
- Keep vents and returns unblocked
- Keep the area around the furnace clear
- Watch for unusual sounds or odors
- Monitor heating performance
- Test and maintain carbon monoxide alarms
- Handle repairs promptly
Schedule Professional Furnace Repair Today in Saratoga Springs, NY
Homeowners in Saratoga Springs have trusted Surburn Services Group to deliver top-quality furnace care since 1980. Our team of expert technicians have the skills and experience to deliver exceptional care for all makes and models of furnace systems to ensure you have reliable heat. Plus, we offer 24-hour service to provide you with prompt solutions for any emergency.
Contact Suburban Services Group today to schedule furnace services in Upstate New York.
