When the temperatures drop, a broken furnace can quickly turn into a major headache. Before calling for professional help, there are a few simple checks you can perform to potentially identify and resolve the issue. Here are some common furnace problems and what you should check when it’s not working.
The thermostat is the control center for your furnace, and often, furnace issues can stem from a simple thermostat setting or power issue. Here’s what to do:
Your furnace won’t work if it’s not receiving power. Take these steps to make sure it’s properly connected:
A clogged air filter can restrict airflow, causing your furnace to shut down or operate inefficiently. Follow these steps:
If you have a gas furnace, your furnace uses a pilot light, which needs to stay lit for the system to function. For newer models with electronic ignition, the ignitor may need troubleshooting. Here’s what to check:
Many furnaces have a safety switch that prevents them from operating if the access door isn’t properly closed. Ensure the door is securely latched.
Blocked vents can disrupt airflow and cause your furnace to stop working or overheat. Inspect all vents and registers to:
If your furnace is a high efficient model that vents to the exterior with PVC pipe, then the condensation from your furnace needs to drain properly. A clogged condensate drain line can trigger safety mechanisms that shut down the system. Check:
If your furnace is a high efficient model that vents to the exterior with PVC pipe, then the pipes may be covered by a snow drift or be frosted over outside. You can check the type that vent out the sidewall and clear the area as necessary. If your furnace termination vent is on the roof then leave that inspection for a professional as roof access is dangerous, especially during the winter. Once the exhaust and inlet pipes are clear, please shut the power off to furnace and turn back on to reset the control board and re-start the ignition sequence.
Strange noises can signal specific problems:
While these checks can help address minor issues, some furnace problems require professional attention. If you’ve gone through this list and your furnace still isn’t working, it’s time to call the experts.
At Custom Cooling and Heating, we understand how important a functioning furnace is during the colder months. Our experienced technicians are ready to diagnose and fix any
HVAC issue to ensure your home stays warm and comfortable.
Contact us today for prompt and reliable service!
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All Rights Reserved | Custom Cooling & Heating, Inc.
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Website Developed by True North Technologies