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Why Is My Furnace Not Working?

Furnace stop working recently in the middle of winter? Don’t sweat it! (Well, even if you could sweat)… Almost a quarter of all service calls related to furnaces could be resolved with little or no cost at all with just a few troubleshooting steps. Brinson & Sons has you covered with what to check in order to get your furnace back up and running in no time!

home furnace

Checking your thermostat

Always start with what may seem to be the most obvious solution: ensure the thermostat is on and set to the correct setting. With each passing year, it seems thermostats become even more convoluted with screens, settings, wifi connectivity and more. Because of all of these new “options”, finding the correct settings for your furnace may prove challenging. Some steps you can take are:

  • Set the temperature several degrees higher than surrounding air, see if the furnace kicks on.
  • Trace the wires back to the furnace to ensure there are no breaks in the wiring. This is especially common after a renovation.
  • Consult your thermostat manual provided by the manufacturer. You may also call your manufacturer for more in depth instruction before calling a local professional.

Check Physical HVAC Equipment

There are several physical components that make your equipment work. This includes breakers, switches, filters and gas.

  • A dirty filter is one of the most common perpetrators of dysfunctional furnaces. When dust restricts airflow and the filter becomes clogged, the heat exchanger will warm too quickly, causing the furnace to shutdown prematurely.
  • Some wall furnaces are turned on by regular wall switches. Several of our technicians have driven quite a long way to only flip a switch! Also check the circuit breaker for a broken fuse.
  • If your furnace is powered by gas, the solution may be checking the gas valve. It may have been accidentally closed – some are levers that get easily pushed into an “off” position.
  • If your furnace or fireplace has a chimney attached to it, make sure nothing fell into it like a creature or branch.

Brinson & Sons Heating Specialists

Oftentimes, the best solutions come in the form of proactive prevention. Contact us to learn more about our maintenance plans that we feel confident will save you money and time. Brinson & Sons offers comprehensive service for all HVAC units and furnaces, commercial or otherwise. Call us today to learn more about our current service offerings. 910-763-3550

Our Partners


Back in 1974, before company mission statements were in vogue, Jack Brinson started his heating and air company with one objective – treat every customer with the personal and professional care they deserve. From new installation to system replacement to service and repair, our team of heating and air professionals will do it like it’s their own home. Our rapid response time is designed with your comfort in mind. That’s the quality of service you can expect. After all, Jack wouldn’t have it any other way.