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Furnace Not Turning On? What’s Your Next Step?

As the colder weather sets in many people start to experience issues with their home’s furnace. There are many things that can go wrong with a furnace but many issues can be detected before having to bring in a professional.

If your furnace isn’t turning on or is blowing cold air, we’ve put together a short list of things that you can check yourself before calling a furnace repair expert at Donnelly’s.

1. Check The Filter

If your furnace overheats, it will shut itself off as a safety precaution. The most common solution is just to change the air filter. When the air filter is too dirty, it can block airflow and cause the furnace to overheat.

2. Check The Pilot Light

Some older furnace models have a pilot light that can go out, making it impossible for the furnace to heat the air. Look in your furnace manual and find directions on how to relight the pilot. If you need assistance, please feel free to contact us!

3. Check The Thermostat

When you have it in the “on” position, it will keep blowing air through the vents, even when the furnace isn’t running. By switching it to “auto” you can be sure that the fan will only blow when the furnace is running.

Note: You can also try to get the furnace to turn on by raising the thermostat to its highest temperature setting. 

4. Check The Power

Check the fuse/breaker at the electrical panel for the furnace to make sure the breaker has not tripped. Make sure the power switch next to the furnace is in the “On” position.

5. Check The Gas Supply

Check to make sure the gas control valve to the furnace is open. A disruption of the gas supply to your heating system could leave your heating system without fuel.

Note: If you smell gas, please leave your home immediately and call Donnelly’s!

Furnace Still Not Working? — Call Donnelly’s Plumbing Heating and Cooling

If you are looking to speak with someone about your home’s heating system, Donnelly’s Plumbing Heating and Cooling is happy to help. We can walk you through potential issues, service, and even the installation of new systems to help keep your home comfortable all year long. You can reach us by phone at (215) 855-2014 or click the banner below to schedule service online at any time!

What To Expect

Discover the Donnelly’s Difference

​Professional Services​

​We show up on time, keep things clean, and listen to what you need. We treat you and your home with the respect it deserves.

Service for All Brands

​We can work on all makes and models of HVAC and plumbing equipment.​

Trustworthy

​You can count on us to be honest and always do what we say. We communicate clearly, provide our guarantees & warranties in writing, and ensure you understand everything we're doing in your home.​

Experienced Technicians​​

We excel at solving problems with years of experience behind us. We look at today's challenges and future needs to create the best customized solutions.​

Licensed & Insured

​Our technicians are licensed, insured, and background-checked for your peace of mind.​

​Professional Services​

​We show up on time, keep things clean, and listen to what you need. We treat you and your home with the respect it deserves.

Service for All Brands

​We can work on all makes and models of HVAC and plumbing equipment.​

Trustworthy

​You can count on us to be honest and always do what we say. We communicate clearly, provide our guarantees & warranties in writing, and ensure you understand everything we're doing in your home.​

Experienced Technicians​​

We excel at solving problems with years of experience behind us. We look at today's challenges and future needs to create the best customized solutions.​

Licensed & Insured

​Our technicians are licensed, insured, and background-checked for your peace of mind.​