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Top Causes Why Your Furnace in Dallas, TX Fails to Ignite When Turned On

You need warm air, and you turn your furnace on. But by surprise, it’s not igniting at all. If your furnace fails to ignite, then your home won’t be warm enough to combat the cold weather. That’s definitely the time you need furnace services in Dallas, TX.

Before you do a service call, take time to read below, so you’ll know why your furnace isn’t igniting.

Dirty Air Filters

Many gas furnace users do not do this step when their heater does not startup. A gas furnace burns a mixture of Air and natural or LP gas. If the Air is not flowing in your system, it won’t produce the required air mixture. Your home’s heating system will not ignite because of it.

The Air does not get to your furnace to ignite because it’s insufficient. Dirty air filters are usually the main reason for this. You need to check them if your gas furnace does not ignite when you turn the system on. We highly recommend replacing your air filters at least once a year.

Ignition Source

There are two ways for a furnace to ignite the gas-air mixture. One is through a pilot light, and the other is through electronic ignition systems. Once they fail to do their functions, your furnace won’t turn on.

  • Pilot Light

The pilot light is a small flame that’s continuously burning inside your heating system. It’s small, so it does not consume much gas. At the bottom of your furnace, you’ll see a tray where the burners are. Your pilot light is at one side of this tray slightly above it. Look under your furnace to check if it’s lit. If not, you can use a long match to lite it again carefully. If it’s not working, it means you have a larger problem

  • Electronic Ignition System

With an electronic furnace igniter switch, your furnace is much safer and does not use a small amount of gas, unlike the pilot light. These types of igniters are in about the same position as the pilot light. They are lightweight and made up of metal alloy that can get super hot when electricity runs through it. Then it ignites the gas coming into your furnace.

Look under your furnace and see if your igniter glows when your furnace turns on. You should hear a clicking noise, meaning your heating system is trying to turn on. If it’s repeating in small intervals, then your igniter isn’t working.

Gas Supply Issues

It won’t be challenging to determine if your furnace is getting gas if you’re using liquid propane. You need to locate your gas storage tank first. In the top center of it, you’ll find the fill valve in a domed area. You’ll also see the gas pressure gauge. If your gas pressure gauge reads 25 or above, then it’s fine. If not, call your gas company for a fill-up.

If you are on a city gas line, don’t try to troubleshoot the problem yourself, as it can pose a dangerous risk. Contact your local contractor for expert heating repair in Dallas, TX. If you smell gas near your furnace when you turn it on, then it means gas supply is not the problem.

Thermostat Issues

When you turn on your heater and move the thermostat to a higher setting, several things usually happen first. You’ll hear the system’s fan that brings the air into it to start the burning process. You’ll then hear the sound of gas igniting. Hot air will flow out of the vents in your home’s rooms.

Of course, none of these will happen if your thermostat is not correctly working because it’s communicating with your furnace. Otherwise, everything will be silent near your gas furnace.

While these causes could be common, some furnaces that encounter major problems (that cause them not to turn on completely) might require an upgrade. Contact GO Heating, Air & Plumbing to investigate the issues and identify whether you need repair or new heating installation in Dallas, TX.

At GO Heating, Air & Plumbing, our mission is to provide customer with an exceptional experience! We provide ourselves in Honesty, Quality and Integrity through empowering customers with knowledge and data to make the right decision for their homes.

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