Chilly temperatures in Canada require excellent home heating systems and furnaces. But what happens when your furnace stops blowing warm air and instead blows cool air? Ignoring an issue with your home’s heating can quickly turn into a problem. Without enough heat in the house, your pipes could freeze and burst. An issue much bigger than any issues with your furnace alone. Here is why your furnace is blowing cold air and how to fix it!

Why Is The Furnace Blowing Cold Air?

More than likely, your furnace is blowing cold air for one of three reasons.

  1. In a generic furnace, a filter that is too dirty could cause your furnace to overheat and shut off automatically.
  2. In an older furnace, your pilot light may have gone out, which means your air is not being heated properly.
  3. Finally, in newer furnaces, water is sometimes produced. When the condensation cannot escape properly due to a block, the furnace will stop producing hot air to avoid water damage.

What To Do When Your Furnace Blows Cool Air

When your furnace is blowing cold air, you need to fix it as soon as possible to avoid any additional damages. Here is how you can fix your furnace’s simple problems.

Replacing the filter

Begin by turning your furnace off.

Locate where your old filter is, remove the dirty one and replace it with a new clean filter.

If your furnace is still blowing cold air, the furnace may need to be reset by a professional. This is simple and won’t take a long time at all.

Relighting the pilot light

In old furnaces that use flames and gas, you will have to manually relight the pilot light.

  • Begin by turning off your furnace from the thermostat.
  • Next, with help from the manual, locate the switch that says “on”, “off”, and “pilot”. Turn the furnace off to stop allowing gas into the furnace.
  • Leave this for a few minutes, then come back with a lighter.
  • Turn the switch to pilot and carefully light the incoming gas. You should see the pilot light turn on.
  • At this point, go ahead and turn your thermostat back on.

If this doesn’t work, call a professional.

Unblocking Your Condensation Line

This is a very complicated process and should be left to the HVAC professional if you want to prevent causing any other damages to your furnace. Call a furnace expert and fix your condensation block problem with just one visit.

Fixing a furnace can be hard when you don’t know what you’re looking for. Luckily, the experts at your Local HVAC Team are more than happy to diagnose and treat any issues with your furnace system. Our reliable team services HVAC systems out of Bracebridge all around the Muskoka area!