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My Furnace Does Not Produce Enough Heat
Posted On: December 29, 2024
If your furnace is not producing enough heat, there could be several potential issues causing the problem. Here’s a step-by-step guide to help you identify and resolve the issue:
1. Check the Thermostat Settings
- Ensure it's set to "Heat" mode: Sometimes, the thermostat might be set to "Cool" or "Off."
- Verify the temperature setting: Make sure the set temperature is higher than the current room temperature.
- Check the fan setting: Ensure it is set to "Auto" or "On." If it's set to "Auto," the fan runs only when heating.
2. Replace the Air Filter
- Inspect the air filter: A clogged or dirty air filter can restrict airflow, reducing the furnace's efficiency.
- Replace if necessary: Install a clean filter and check if the heating improves.
3. Inspect the Air Vents and Registers
- Ensure vents are open: Closed or blocked vents can reduce heat distribution.
- Remove obstructions: Check for furniture or objects blocking airflow from the vents.
4. Check the Pilot Light or Ignition System
- Pilot light (older furnaces): Ensure the pilot light is lit. If it’s not, follow the furnace’s manual to relight it.
- Electronic ignition (modern furnaces): If the ignition system is malfunctioning, it may need repair or replacement.
5. Inspect the Blower Motor
- Listen for unusual noises: Grinding or screeching noises may indicate motor issues.
- Check for operation: If the blower isn’t running, it might need professional servicing.
6. Clean the Flame Sensor
- Dirty sensor: A dirty flame sensor can cause the furnace to shut off prematurely.
- Solution: Turn off the furnace and gently clean the sensor with a soft cloth or fine sandpaper.
7. Look for Blocked or Leaky Ducts
- Inspect ducts: Check for visible blockages or leaks in the ductwork.
- Seal leaks: Use duct tape or mastic sealant to patch small leaks.
8. Check Fuel Supply
- Gas furnaces: Ensure the gas valve is open and there is no interruption in the gas supply.
- Oil furnaces: Verify there’s enough oil in the tank.
9. Check for Error Codes
- Modern furnaces often display error codes on the control panel. Consult your furnace manual to decode and address any displayed errors.
10. Call a Professional HVAC Technician
- If unresolved: If none of the above steps resolve the issue, it’s time to call a professional. A certified HVAC technician can diagnose and fix complex issues, such as a malfunctioning heat exchanger, gas valve, or control board.
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See What Our Customers Are Saying:
Jul 3, 2022
Great service and great people to deal with, from sales to installer. I highly recommend this company.
Apr 28, 2022
Twintech replaced our aging furnace and air conditioner recently. I highly recommend this company. Their quote was competitive, they were on time and respectful of our home and extremely professional. From the salesman to the installers and the owner who followed up afterward to ensure we were satisfied, we are very pleased with the service. We are looking forward to working with this company for all of our HVAC needs for the years to come. Excellent workmanship and service!
Apr 28, 2022
We wanted to get our AC replaced as it was 22-years old and added to this our furnace was costing more and more to repair. So, we decided to get both the furnace and AC replaced.
After going through a few quotes and product reviews we decided to go with Twintech. The three-men crew arrived early in the morning, wasted no time and got to work right away. By 2:00 pm, they were all done. Ive found their work to be top notch and they were completely professional. I had all my questions answered to my satisfaction both during the progress of their work and at end.
I have pleasure in recommending Twintech to anyone who is looking to get their furnace or Ac replaced
Nathan S.
Apr 28, 2022
Our air conditioner died On a Saturday and within hours Dave came out to take a look and discuss replacement/repair options.
The new air conditioner was installed on the Wednesday. The new unit was installed quickly. The installers were friendly and cleaned up afterwards.
We noticed a slight leak around the furnace that night and they came out the next day and fixed the issue. It has been working great and is quieter than our previous unit.
Very satisfied and would highly recommend TwinTech.
Apr 28, 2022
I contacted TwinTech to replace my 20-year old A/C. Dave, their service rep, promptly replied and was at my home within 2 hours. He was friendly and knowledgeable and didn't try to upgrade or oversell their A/C units but suggested the best fit for my small 1000 feet bungalow. Although this was during a heatwave and very busy, they were able to fit me in 2 days later. The TwinTech crew installed a 1.5 ton Ducane A/C unit that is now running smoothly while maintaining a constant cooling temperature. The crew were very courteous, professional and efficient and I will definitely recommend TwinTech to family and friends. I much appreciated your great service.
Nancy M., Oshawa
Apr 28, 2022
We had a great experience. The guys who installed our a/c did a nice job. Cleaned up.
Apr 28, 2022
excellent crew, fast and efficient! Would call them again when I need a new furnace.
Apr 28, 2022
Professional, courteous and efficient, dont need to say more than that! Use them you will not regret it.
Apr 28, 2022
TwinTech was a pleasure to deal with from the estimate through installation. We replaced a 28 year old a/c unit with one recommended by TwinTech's sales representative Dave who took the time to go over the product with us and answer any questions. The warranty is for 10 years parts and labour and they will complete the registration for you. Installation was by Greg (owner) and Mitch and Spencer who were quick and efficient and left everything clean and tidy.
Apr 28, 2022
Very professional, from the sales consultation and inspection to the final installation. Met every expectations we had for the job. A local business with great client support. We highly recommend. Twintech is a blue chip! Thanks!
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