What Can You Do When Your Furnace Doesn't Work?

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When the weather begins to turn cold, you do not want to be without your heating. If you notice that the furnace is not igniting right away, it could mean you have a failed ignition. Before you call for help from an HVAC technician, check the following to narrow down the problem:

Make Sure the Thermostat Works

When an HVAC does not work correctly, the first thought is there is a system failure. However, the problem is sometimes as simple as a failed thermostat. If your thermostat has a digital readout, it could simply need a new battery. Other times, the thermostat simply stops working and needs to be replaced. This is a simple process, and most homeowners can install a new thermostat themselves.

Look at the Gas Line

If you have a gas-powered furnace, you need to look at the gas line. The gas should be in the "on" position. If it is, check to see if your other gas-powered appliances are working. If they work, you should check to ensure the gas supply to the furnace is on. Keep in mind that the gas sometimes takes longer to get to the furnace than other appliances. If still does not work, that means gas is not getting to the furnace.

Look at the Filter

You should also check the filter. If it has been a long time since you changed or cleaned the air filter, it could be clogged and not allowing the warm air into the house. You should also look at your vents to be sure they are not obstructed. If you are still not getting airflow, the ducts may be dirty and require cleaning.

Check Your Pilot Light

Another reason for a failed ignition is the pilot light. Over time, the pilot light can get dirty and not light when you turn it on. This is an easy repair you may be able to fix yourself. You need to disconnect the gas or turn off the electrical breaker if it is powered electrically. Remove the panel and locate the pilot light. Take off the pilot light with a screwdriver and carefully wipe it off with a cloth. Replace it and try turning it back on. If it still does not work, you may need a new pilot light on your system.

If any of these things are not the problem, you need to call your heating repair technician to diagnose and make any necessary repairs.