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Furnace Stopped Working, Now What?

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Furnace Stopped Working, Now What?

Posted On: October 7, 2024

Furnace Stopped Working, Now What?

If your furnace has stopped working, don’t panic! There are a few common troubleshooting steps you can take before calling in a professional:


1. Check the Thermostat

Ensure that your thermostat is set to “heat” and that the temperature is set higher than the current room temperature. Sometimes, the thermostat is the issue rather than the furnace.


2. Inspect the Circuit Breaker

A tripped circuit breaker could be the cause. Go to your electrical panel and check if the furnace’s breaker has flipped. If it has, reset it.


3. Replace the Air Filter

A dirty air filter can restrict airflow, causing the furnace to overheat and shut down. Replace your filter to see if that resolves the issue.


4. Check the Pilot Light or Ignition System

If you have an older furnace, the pilot light may have gone out and will need to be relit. For newer models with electronic ignitions, you may need to reset the system.


5. Ensure Gas Supply

For gas furnaces, make sure the gas valve is turned on. If you suspect a gas issue, contact your gas provider or a professional immediately.


6. Examine Vents and Air Ducts

Make sure that vents and air ducts aren’t blocked, as restricted airflow can cause the furnace to stop working.


7. Look for Error Codes

Modern furnaces often display error codes if something is wrong. Check your owner’s manual to interpret these codes and understand what might be going on.


8. Call a Professional

If the furnace still doesn’t turn on after trying these steps, it’s time to call in an HVAC professional. A licensed technician can diagnose and fix more complex issues such as problems with the blower motor, heat exchanger, or wiring.


For reliable furnace repair and maintenance services, always trust a certified HVAC company to get your system back up and running.



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See What Our Customers Are Saying:

by Floreene in Whitby on Twintech Heating and Cooling

My old furnace had finally broken down for the last time when contacted twintech to have a new furnace installed…They were prompt, knowledgeable and very reasonably priced. They did such a great job i tell all my friends and family about this company.

by Damien McIsaac. Ajax on Twintech Heating and Cooling

To whom it may concern, I recently had TwinTech (Greg and Grant Dainty) replace my furnace and service both my gas fireplaces and air conditioning unit. They were professional, courteous and very fair in their pricing. I would gladly recommend TwinTech to anyone needing work done. I can be contacted at 905-626-XXXX.

by Blair N. - Toronto on Twintech Heating and Cooling

My Fiancé and I have relied on Twintech Heating and Cooling now for the better part of the last 10 years. In that time, Greg has installed a furnace, an air conditioner, and a heat-pump at our residence in Toronto. In each instance Greg and his team were a pleasure to deal with. They were courteous and professional throughout the whole process and the quality of their work is first rate. Our experiences have always been extremely positive and we have referred his services numerous times to our friends and family. Without hesitation, I would recommend Greg and TwinTech Heating and Cooling to anyone looking to service or replace their existing heat/AC equipment

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See What Our Customers Are Saying:

by Robert Rogers on Twintech Heating and Cooling

Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.

by Robert Mizuno on Twintech Heating and Cooling

We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!

by Ruth on Twintech Heating and Cooling

TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!

by Anna Chin on Twintech Heating and Cooling

Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!

by Connor Agnew on Twintech Heating and Cooling

Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.

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