As the season is changing, many people are turning on their furnaces for the first time in a long time. When they do, some of them will have the unfortunate experience of flipping the switch and feeling absolutely no warm air at all. If your furnace isn't turning on, there can be a number of reasons why ranging from relatively simple to complex, so be sure to work through the list below to figure out what the problem is. If you need further assistance, contact an HVAC technician and schedule heating services for your home as soon as possible.

Check The Thermostat

It sounds simplistic, but it's always surprising how many people schedule HVAC services only to find out that their thermostat hasn't been turned on in the first place. Even if it has been turned on, it could be an issue with your thermostat malfunctioning, although if it's been working for your air conditioner, that's probably not the case. Still, if your thermostat is relatively old, you'll need to see if it's worth replacing.

Check The Breaker

If your home's HVAC system runs on electricity, check the breaker box to see if the furnace switch has been tripped. If so, flip it back on and the unit should work again. If it keeps tripping, you need to have it checked out by a professional since a breaker that is constantly flipping over could indicate a larger electrical issue that could potentially start a fire.

Check The Pilot Light

Older homes that use gas to power their home's HVAC systems will typically have a pilot light inside the furnace. This tiny blue flame provides the source of ignition and creates warm air throughout your home, so if it's out, your system won't work. You can relight it if you want to, but make sure you do so safely. Also, check the heat exchanger nearby to see if there's a crack that is allowing air to pass through or any other source of wind that may have blown it out in the first place.

Check The Air Filter

Ideally, your air filter should be replaced every 3 to 6 months to ensure that your home's HVAC system stays in proper working order. Failure to do so can mean a furnace or air conditioning unit has become completely choked off, causing your unit to not work at all. If it's dirty, then you need to schedule a heating service to not only clean the ductwork but also repair the unit. If your furnace is completely clogged, then you may also have to replace it completely.

Contact a heating service for more information.