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Why Isn’t My Furnace Blowing Hot Air?

Dec 16, 2020

Freezing cold weather and furnace failures – name a more iconic duo. If you’ve turned the heat on in your home only to find that cold air is now beginning to circulate, this is the blog post for you! Here are four reasons why your furnace might not be operating at full capacity this winter.

Thermostat Configuration

Of all the issues that could be hindering your HVAC system, suboptimal thermostat configurations are among the easiest to fix. Most often, homeowners accidentally leave the fan set to “on” rather than “auto.” Keeping the fan set to on allows it to run even when the heat isn’t running, which will rapidly decrease the temperature of your home.

Filter Issues

When is the last time you changed your furnace filter? If you haven’t done so this season, there’s a good chance your furnace is being hindered by debris and dust that it has collected over the last several months. Luckily, furnace filters are cheap, easy to install and can potentially solve all of your heating and airflow issues right away. As a bonus, replacing your filters will also help you maintain your indoor air quality.

Pilot Light Issues

When your pilot light goes out, cooler air can be circulated throughout your home as a result.  A wide variety of things can cause a pilot light to go out, even a strong gust of air. Older furnaces are more susceptible to pilot light outages, but it’s worth investigating, even if yours was installed recently.

Problems at the Root

If you’ve inspected all of the above issues without success, it may be time to take a look at the root of your heating system. What powers your furnace? There could be simple issues keeping your heating system from functioning correctly for each type of furnace. Here are a few common types of furnaces you may have in your home:

  • Oil powered: Is there any oil left in the tank?
  • Electric powered: Is the furnace itself turned on? Is it switched on at the breaker panel too?
  • Gas-powered: Is the gas supply valve opened?

Rely on Will Air for Your Routine Furnace Maintenance

Will Air is proud to be a customer-centered residential and light commercial heating and cooling company serving the greater Central Maryland area. With over 30 years of experience, we are dedicated to offering the highest quality services at competitive rates. From preventative maintenance to residential HVAC repair, we are here to help you however we can. If you are having issues with heating this winter, call us today at (410) 549-9300 or request an estimate.


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"After being out all day and coming home to a hot house, it was refreshing to get an HVAC company
to pick up the phone. Rob answered and I was able to tell him the inside unit was not running and it was frozen but the outside unit was running fine. He gave me his pricing and a ballpark figure for a new blower motor, if that turned out to be the problem. I gave him the information on the HVAC panel and he said he had a motor if that was it. He arrived Sunday morning, replaced the blower motor and a bad relay switch and two hours later the house was cooling off. He was very knowledgeable and pleasant. He didn't mind my two little boys asking all kinds of questions about his tools and what he was doing. I also thought the repairs were going to cost a lot more than what I paid. We have used several different companies through the years but Rob has been by far the best. We will be using him for all our future HVAC needs for sure and I would recommend him to anyone who asks."

Rebecca Lepore May 19, 2020

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Awesome. I called and they came out the same day to put a short term fix on my AC unit. They then installed a new unit a few days later. Quick and reasonably priced. I couldn't have asked for more. I highly recommend them!

Matthew Forsyth May 19, 2020

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"We had a wonderful experience working with Rob Will & Will-Air. We called a few HVAC companies and chose to work with Will-Air because they were so friendly and helpful on the phone. They scheduled an appointment for that afternoon and offered to call 45 minutes before arriving and even bring a plug-in AC unit in case the repair would take two days. Rob Will was honest when diagnosing the issue with the air conditioning and very personable! We will definitely call him back for any future HVAC needs and recommend this company to our friends!"

Patrick McNaboe May 19, 2020

  • Carroll County, MD
  • Howard County, MD
  • Frederick, MD
  • Baltimore County, MD
  • Montgomery County, MD
5389 Enterprise Street, Suite F, Sykesville, MD 21784


Licensed & Insured: MD HVAC 3303 | WSSC FG7 | MD Gas Fitter License Number 92788

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