Troubleshooting Your Fairfax Home Heating System

Few things are more frustrating during the winter season than when your furnace breaks down, leaving you out in the cold. Fortunately, you might be able to take care of this issue yourself. Here are three quick checks you can do to troubleshoot heating system issues in your Fairfax home.

Check the Thermostat

Make sure your thermostat is turned on, replacing the batteries if applicable. Try turning the temperature up a few degrees to see if the furnace kicks in. Check the circuit breaker to be sure it hasn’t been tripped and that power is definitely flowing to both the furnace and the thermostat. Finally, check the furnace door to make sure it’s closed all the way. If it isn’t closed properly, power to your furnace will automatically be cut.

Replace the Filter

A clogged filter can restrict airflow. If your system turns on, but it takes a long time for your home to get warm, you may need to replace your air filter. Check the filter every month and replace it at least every three months when it becomes gray and opaque. If you have a permanent air filter, clean it according to the manufacturer’s instructions, either with a vacuum cleaner or a hose and some dish detergent. You should also check the registers to be sure they’re open and not clogged with dust and debris.

Check the Pilot or Igniter

If you have an older furnace with a permanently lit pilot, make sure it hasn’t gone out, and relight if necessary. If your furnace has an electronic igniter, try resetting it. Shut off the gas valve for five minutes, then turn it back on. If you still don’t have heat, make sure that gas is, in fact reaching your furnace. If there’s gas, but still no heat, you may need to replace the igniter.

If, after all of this, your furnace still isn’t working properly, then it’s time to call a professional. For more help troubleshooting heating issues, contact our experts at Brennan’s Heating & Air Conditioning.