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Should My Furnace Be Blowing Cold Air?
Posted On: November 26, 2024
If your furnace is blowing cold air, it could indicate a problem that needs attention. Here are some common reasons and steps to troubleshoot:
1. Thermostat Settings
- Check the mode: Ensure the thermostat is set to "Heat" and not "Fan."
- Temperature setting: Confirm the temperature is set higher than the current room temperature.
2. Pilot Light or Ignition Issues
- In older furnaces, the pilot light may be out. Relight it following the manufacturer's instructions.
- For newer furnaces, a faulty electronic ignition system might be preventing the burners from lighting.
3. Clogged Air Filters
- Dirty filters can restrict airflow and cause the furnace to overheat, leading the safety mechanism to shut off the burners.
- Replace your filter if it’s clogged or dusty.
4. Overheating Furnace
- A furnace that overheats will trigger safety mechanisms, shutting down the heating elements while the blower continues to circulate air.
- Common causes include poor airflow or a malfunctioning blower motor.
5. Ductwork Problems
- Leaky or disconnected ducts can pull cold air into the system or fail to deliver warm air efficiently. Inspect your ducts for issues.
6. Empty Fuel Supply (Gas or Oil Furnaces)
- If your furnace relies on fuel, check the tank to ensure it's not empty.
7. Malfunctioning Components
- Issues with the blower motor, control board, or limit switch can cause cold air to blow.
- A professional HVAC technician can diagnose and repair these problems.
When to Call a Professional
If troubleshooting doesn’t resolve the issue, contact a licensed HVAC technician. They can identify and fix the underlying problem, ensuring your furnace operates efficiently.
Would you like help drafting a detailed guide or contacting a technician for assistance?
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See What Our Customers Are Saying:
Apr 28, 2022
They came the day and time they had planned for us and were very fast and efficient! The AC works amazing and it is amazing during the heat of the summer we have already got! Thanks for everything you did for us!
Apr 28, 2022
Would recommend this company to friends and family in a heartbeat. Very professional , on time and left no mess when the job was done.
Apr 28, 2022
Great customer service. Responsive and professional. I would highly recommend Twintech, I used them previously for repair service and a new air conditioner- very satisfied.
Apr 5, 2022
Our air conditioner failed. Made a call and within 15 min a technician was at our door.
The issue was fixed and many suggestions were provided.
Thanks to Mitch. Great service !
Apr 5, 2022
Our furnace was rattling, as soon as we put our air conditioner on this past week. We had researched looking for a company that was Registered with Better Business Bureau, and this company TwinTech, had A+ Rating. Scott, was immediately helpful via text/phone and sent his technician as soon as he was able...Mitchell/technician provided great professional service. Thank you TwinTech.
Sean and Debbie
Apr 5, 2022
I contacted various companies when looking to install a new furnace and I found Twintech to be transparent with their communication and approach. They had options to suit my various requirements and the price vs quality was very good. The after installation communication was also very good and they answered all queries I had.
Apr 5, 2022
My furnace broke down last month. The team was quick to respond, courteous, professional and mindful of COVID-19 concerns. I highly recommend them if you are considering replacing or servicing your HVAC equipment.
Apr 5, 2022
I was very happy with the installation and price. I would definitely recommend. Thank you Twintech.
Apr 5, 2022
Had furnace and air conditioning unit put in. They did an excellent job great price and everything clean as can be, I was very pleased
Apr 5, 2022
All winter I have had an issue with very little heat reaching the 2nd floor of our home. After this past winter ended I decided to look into this. I found Twintech Heating and Cooling on line and started the process. After explaining my problem I had a call form Twintech and the tech came out and walked through things with me. The problem was the heating vent pipe had been dropped down in size by someone years ago causing little heat reaching the 2nd floor. Further into checking out the older furnace and AC they found a few things not properly installed by the last install of the old furnace and also that the AC was on it's last legs. I asked for a quote and waited a few days and we decided to go ahead with Twintech. They called a few days before to set up an installation time and date. The day of the install the guys were a half hour early which was a plus. The day of the install was great, the guys worked away removing the old furnace and AC.After which they installed the new furnace and AC. After they cleaned up the basement with all their tools and scrap metal etc. they came back inside to walk thru what they did. They also tested both the furnace and cooling systems to make sure everything worked and I the customer was happy. I now have heat on the 2nd floor for next winter. The guys from Twin tech were very professional. Their work habits and knowledge of the job was excellent. Their workmanship was just excellent, it was just up there with my standards as a homeowner. I am very pleased to have chosen Twintech for my new furnace and AC.. If I had to rate this experience with Twintech this company is a 10 in my books.Product,workmanship and customer care says it all.
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