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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:
May 3, 2020
Reasonable price and the workmanship was prompt and timely and the employees were great to deal with.
May 2, 2020
The sales process was friendly, informative, and very consultative. They worked hard to earn our business by taking a careful look around our home to assess our needs, providing a lot of information about the product, and answering all our questions and finding the right solution for our home at a competitive price. They prepared us very well for what to expect on installation day, and the installation went very smoothly - no surprises, all very professional! They gave us a call after installation to ensure we were happy with the work. We're very happy that we chose to work with TwinTech to get our new furnace.
May 1, 2020
Twintech promptly responded to request for quotation. They were thorough and helpful in explaining options. The quote was very competitive. Installation of new furnace was very professionally completed. Excellent work.
Jan 17, 2020
When our old oil furnace finally broke down we decided it was time to finally convert to natural gas and finally install central air conditioning at the same time. Knowing it was going to be a significant investment for us, we wanted to make the right choice. Twintech came highly recommended by a friend and we were not disappointed. From the first contact with the salesperson, until the final touches on the installation, we were so pleased with their service. Everyone from the company was so friendly, efficient and a pleasure to deal with. Best of all, the cost was very competitive. We would certainly recommend Twintech to anyone requiring HVAC work in their home.
Jan 15, 2020
Mitch from Twintech came out for our annual furnace inspection. We found him to be friendly, conscientious & he left the work area clean. We were also very impressed with the thoroughness of the job he did. This is the 2nd job weve had Twintech do for us & have been very happy with the results for each. We highly recommend this company. Thank you, Mitch, Dave & Greg.
Jan 14, 2020
Work was done on schedule, professionally, according to quote and with minimal inconvenience to building users. Very happy with the end result. The only area for improvement from my experience - need more timely quoting process.
Jan 13, 2020
The team was great! Very knowledgeable, professional and extremely helpful. A few days after install the unit didnt seem to be working, user error, but within minutes of contacting them..on a Saturday.. a tech was on the phone troubleshooting with us. I highly recommend Twintech for your cooling or heating needs. They stand by their products and a pleasure to deal with.
Jan 11, 2020
During the hottest week in the summer our old A/C decided to call it quits. I called Twintech Heating & Cooling after receiving a referral from a family member; came highly rated for being an honest, family-run business, who appreciates their customers. Dave was able to accommodate my hectic schedule and book a late evening appointment to walk through the specifics. Greg and Mitch arrived exactly on time a few days later, were very polite and friendly, and within a couple of hours had a new unit up and running. I also received a follow-up call to ensure we were happy with the Amana.
Jan 10, 2020
They were on time and very professional. I'm so glad I decided to go with Twintech, thanks!
Aug 20, 2019
Timely and appreciated - this was during the hottest days this year when our Air and Furnace way.
Efficient. Professional. No BS or overselling. What was promised, was delivered at a cost-effective price point.
Down to earth.
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