If your furnace isn’t working, your first move may be to call a local HVAC company for emergency furnace repair. Waiting to fix your furnace can have costly consequences. Many furnace problems can put your family in danger too. But not all reasons for a furnace not working are bad. When the heat doesn’t come on, here are some steps to take before picking up the phone:

See What the Thermostat Is Set To

If your furnace isn’t heating your home, chances are the thermostat isn’t set correctly. There are a few things to look for. Look to see that:

• The thermostat is set to “Heat” mode.
• The temperature is set to what you want it.
• The fan is in the “On” position.

Pressing a button or moving a switch can get your furnace to kick in. You can also try setting the temperature up a few degrees. Then see if the thermostat triggers the furnace to turn on.

Make Sure the Furnace Has Power

You can first try replacing the batteries in the thermostat. A unit with a dead battery won’t signal the furnace to turn on. If that’s not the issue, check the furnace’s power switch; if it was accidentally turned off, set it to the “On” position. Another possibility is a tripped circuit breaker. Find the main electrical panel and the breaker for the furnace. If it’s off, then flip it back on; but if it won’t click on or trips again, call an HVAC contractor for emergency furnace repair.

Check the Gas Valve

If you have a gas furnace, turning off the gas valve will cut its fuel supply. The valve may have been turned off by a service technician, and they forgot to turn it back on, or someone in your home may have done so by accident. First, find the gas valve, which can be anywhere along the gas line between the furnace and the gas meter. If the handle is perpendicular to the pipe, turn it until it’s parallel, or in line, with the pipe.

Change the Air Filter

A dirty filter will restrict airflow and starve the furnace of the fresh air it needs. It may then produce less heating or shut off. If the filter looks dirty or clogged, replace it. And, if you’re not sure, hold it up to a light; if you can see through the filter media, it is clean enough. If not, then replace the filter. Most furnace air filters should be replaced every month or two but check the manual or with the manufacturer for specifics on your model.

Check for Exhaust or Ductwork Blockages

Inspecting the chimney flue for blockages requires turning the system off and removing the connecting duct. Debris and animals can get in there, which disrupts airflow. Clear away any debris, and properly reassemble the sections you removed before turning the unit back on. 

Blocked ducts can affect your furnace too. If you’re getting heat, but some rooms are cold, make sure the registers are open. If so, then look for signs of blockages or air leakage in ducts. A duct will have to be unblocked to restore normal heating. Gaps in ductwork can be sealed with duct tape, but if there’s significant damage, call a technician to perform repairs.

Look at the Exhaust/Intake Vents

Leaves, dirt, and debris can block vents and interfere with heating. On a cold day, ice can clog pipes as well. If you can, melt the ice or clear out any debris. If not, call a contractor for service.

Inspect the Furnace

If you haven’t yet found the reason for no heating, go to the furnace. Listen for whether the blower motor is running and feel for warm air coming from the vents. If the furnace has ignited but you’re not getting warm air, the blower motor may have to be replaced. Also, look at the pilot light if your furnace has one. Usually behind a small door or plate at the base of the unit, the pilot light should be lit and blue. If the pilot won’t light or is any other color, call your local HVAC company right away.

Request Emergency Furnace Repair in Portland

Sky Heating and Air Conditioning provides emergency furnace repair services in the Portland area. We know how much you may rely on heating during the winter months. Our team is available 24/7 in case your furnace breaks down or doesn’t work properly. If our suggestions above didn’t resolve the issue or unusual noises or odors, frequent cycling, or poor airflow occur, don’t hesitate to call us at (503) 563-2698.