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Furnace Is Not Heating Up
Posted On: October 24, 2024
If your furnace is not heating up, several potential issues could be causing the problem. Here are some common reasons and troubleshooting steps you can take:
1. Thermostat Issues
- Check settings: Ensure the thermostat is set to "heat" and the temperature is set higher than the current room temperature.
- Replace batteries: If your thermostat uses batteries, try replacing them to ensure it’s working properly.
- Calibration: Sometimes thermostats need recalibration if they aren’t reading the correct temperature.
2. Clogged or Dirty Air Filters
- Dirty air filters can restrict airflow, causing your furnace to overheat and shut down as a safety measure. Replace or clean the filters regularly to ensure proper airflow.
3. Tripped Circuit Breaker
- Your furnace may not be receiving power due to a tripped circuit breaker. Check your home's electrical panel and reset the breaker if necessary.
4. Pilot Light or Ignition Issues
- For gas furnaces: If your pilot light is out, you’ll need to relight it. If your furnace has electronic ignition, it may need troubleshooting or professional repair.
- Check for gas supply: Ensure your gas valve is open, and your furnace is receiving a supply of gas.
5. Blower Motor Problems
- If the blower motor isn’t working, the furnace won’t distribute heat. Listen for any unusual sounds, which could indicate a motor problem, and call a technician if necessary.
6. Dirty Flame Sensor
- A dirty flame sensor can prevent your furnace from staying lit. Cleaning or replacing the flame sensor can resolve this issue.
7. Blocked Vents
- Ensure all supply and return vents are open and unobstructed to allow proper airflow. Blocked vents can cause overheating and system failure.
8. Faulty Limit Switch
- The limit switch prevents your furnace from overheating. If it’s malfunctioning, the furnace may not heat up properly. A technician may need to replace the switch.
9. Gas Valve Issues
- If the gas valve is faulty, it could prevent the furnace from receiving the fuel needed to heat your home. This issue requires professional diagnosis and repair.
If the basic troubleshooting steps don’t solve the problem, it’s best to contact a professional HVAC technician to diagnose and fix the issue safely.
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See What Our Customers Are Saying:
Jun 5, 2018
All interactions from sales to installation were Courteous and professional. The installation was seamless and the attention to detail including clean up was outstanding. I highly recommend TwinTech Heating and Cooling.
May 17, 2018
Twintech's Salesman Dave arrived promptly was friendly and courteous, listened and assured us the installation would be completed according to our requests. The crew arrived early morning on May 11th, 2018 and worked through till late afternoon non-stop. They were very friendly, very professional, their expertise was excellent, their workmanship outstanding and the installation was completed in a timely and efficient manner. We were completely satisfied and happy with the quality of the work.
May 9, 2018
I had cold and hot spots all over my 70 yr old home. My furnace is quite new and Greg optimized the fan and furnace. The original installer just took it out of the box with factory settings and installed it- basically running at 50% of capacity. Greg also routed heat into my laundry room, yeah - so now I can renovate laundry room - thanks Greg. He is honest, professional and knowledgeable. I will be calling him back in the spring to optimize my AC as well.
May 8, 2018
Wonderful from beginning to end. I tend to fret and worry about home improvements but the excellent team at TwinTech put my mind as ease. They listen, they are patient and best of all ... the work they did is amazing! I chose the Goodman 80K BTU 2 stage furnace and the matching Goodman air conditioner. Greg, Grant and Poitr "Peter" arrived on time, took great care, explained everything to me and they answered all of my questions. They carefully adjusted the factory settings to optimize the furnace for my house and they also checked the duct work in the basement. Dave, the Sales Manager, came by to say "hello" and to see if I was happy. YES, I am happy with the work! The furnace is very quiet. I have it running on low just to circulate the air in the house and it's so much quieter than my old furnace. When I need new duct work for an upcoming basement renovation TwinTech will be my first choice. I highly recommend TwinTech. PS. They were even nice to my dogs.
Apr 21, 2018
Greg was prompt on the scheduled day of installation and the work was done well within the time estimated beforehand. Installation was neat and the equipment and scope of work was as specified in the quote. One item I must point out is that we were faced with a "No Heat" situation the day before the scheduled installation and Greg came out to address it free of charge. Not only that, but he also corrected an installation fault with our smart thermostat that was not part of the original job, again free of charge.
Mar 16, 2018
Greg came by to do a routine furnace checkup. He was very knowledgeable and professional, letting me know what's being checked/adjusted and giving me tips to ensure everything runs smooth. Very honest and upfront about what's working fine vs. what may need to be fixed/replaced. He didn't attempt to up sell anything that wasn't necessary. I'm glad to have finally found someone I can trust and rely on for all my HVAC needs - furnace, A/C, and hot water tank.
Mar 4, 2018
I'm very happy with the work that was done. Everyone from salesperson to the installers were friendly and professional. They were on time and cleaned up the job site after it was installed. They also answered all my follow up questions promptly. I wouldn't hesitate to work with them or recommend them again.
Feb 28, 2018
Thanks to the team at Twin Tech for a great job installing my new heat pump/ac unit. The guys were very polite and professional. When they left you would never have known they had been there except for the new Mitsubishi unit on the wall!! would highly recommend the Twin Tech team.
Feb 28, 2018
Installed professionally, no delays, no rework needed. Very reliable contractor and sales person. Also installed BBQ gas line and some duct work.
Feb 19, 2018
Greg and Grant are friendly, reliable, and knowledgeable HVAC professionals. The twins, Dave and the entire team provided efficient top quality service. Our family plns to use Twintech for all of our future HVAC needs.
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