When your furnace stops working abruptly, you may feel confused, not knowing what to do next. However, you do not have to be unnecessarily disturbed; there are some steps you can take before asking for furnace repair.

Your furnace may stop working late at night; you cannot afford to let cold take over your home. Being aware of the following tips will allow you to check if the furnace only has a small issue you can fix without calling for a furnace repair. Read this article to know what you can do when your furnace stops working.

What Do You Do When Your Furnace Stops Working?

1. Change a Dirty Air Filter

A dirty air filter can cause your furnace to malfunction or stop working suddenly. The furnace needs a constant supply of air, which the accumulated dirt on the air filter will have blocked out. As a result, the furnace would shut down. So, the first thing to do when your furnace shuts down is to check its air filter and replace it if it is dirty. Running your furnace with a dirty air filter will reduce its efficiency and life span. However, turn off the furnace’s control switch and thermostat before removing the air filter.

2. Check Thermostat

Your furnace might not have a mechanical issue, but your thermostat may be playing pranks on you. So, if your furnace fails to turn on or blow hot air, check your thermostat to see if it is set correctly. Check if the thermostat is set to “heat;” if not, set it correctly to 5 degrees above the room temperature. You can also replace the thermostat’s batteries. Try and turn on your furnace; you might not need a furnace repair beyond what you did.

3. Shut the Blower Motor Panel

If the blower motor panel is open, the furnace will not start until it is correctly closed due to its safety device to secure the board. As a result, check if the blower motor panel is properly shut; else, close it properly.

4. Check Air Ducts

Your furnace may be running smoothly and blowing hot air as required. But if you notice some cold areas in your home, the issue lies with the air ducts. Examine the air ducts and ensure that they open adequately. Besides, check to ensure that the air ducts do not have physical damages such as cracks, gaps, or hikes that allow hot air to escape.

5. Open the Gas Valve

The furnace may have stopped working because someone shuts its gas valve. Check the gas valve and turn it back on. Without the gas supply, the furnace will not work correctly.

If all the steps above failed, call a professional for a furnace repair. This will ensure that your furnace gets the most professional and comprehensive furnace repair possible.