Millions of households rely on their gas furnace to keep their homes warm during the wintertime. A properly maintained furnace will usually run for years without any major problems, but issues can still arise. If you have a gas furnace, it uses an ignition system to cause a combustion so it can begin operating and producing heat. When the ignition system in your gas furnace is not working as it should, you will need to troubleshoot the issues, and in some cases, you may need to contact an HVAC company to make repairs to your furnace. Some of the most common reasons that a furnace may not ignite include the following.
Problem with the Gas Line
In order for the ignition system inside a furnace to work, there must be a flame and a source of fuel — natural gas. Many people have a gas line running into your home and receive a continual supply of gas from their gas company, while others may have a natural gas tank on their property. If a gas line becomes cracked or otherwise damaged, gas will not flow into the ignition system properly, and the furnace will not ignite. Any issues pertaining to furnace's gas line should always be diagnosed and repaired by a professional.
Bad Ignition Switch
One of the most common reasons a gas furnace will ignite and begin producing heat is due to a bad ignition switch. You can usually tell that the problem is a bad ignition switch if you can hear your furnace click and turn on, but no warm air flows out of your vents. The good news is that replacing a bad ignition switch will solve the problem, and it is not an overly expensive repair. Your best bet is to contact an HVAC repair company to order a new ignition switch and install it for you.
In some cases, the cause of furnace ignition problems may be due to the fact that your home's thermostat is no longer working. When a thermostat is not functioning properly, it will not be able to send the right signals to the furnace to let it know that it needs to ignite and produce heat. If you have a very old thermostat, it is much easier to replace it instead of trying to have it repaired. A new thermostat is relatively affordable, and you can opt to either install it yourself or hire a professional.
For more information, contact a furnace repair service.
Hi there, my name is Marissa Sonder. I would like to use my site to talk about the different types of furnaces available for residential and commercial applications. Growing up, my school had an actual boiler room that provided heat and hot water for the entire building. All of the students loved to go down to the boiler room and learn about all of the components down there. Although many buildings have moved on from this old piece of equipment, I would like to discuss its use in detail on this site. I will also talk about modern electric, natural gas, propane and oil furnace systems. Thanks for coming by.