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Furnace Thermostat Issues

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Furnace Thermostat Issues

Posted On: October 24, 2024

Furnace Thermostat Issues

Furnace thermostat issues can lead to inefficient heating and discomfort, especially as temperatures drop. If your furnace isn’t functioning properly, the thermostat could be a common culprit. Here are some common thermostat-related problems and how to address them:


1. Incorrect Thermostat Settings

  • Problem: Sometimes, the thermostat is simply set incorrectly, either switched to "cool" instead of "heat" or with an incorrect temperature setting.
  • Solution: Ensure the thermostat is on the “heat” setting and the temperature is higher than the current room temperature.

2. Thermostat Placement

  • Problem: If your thermostat is placed near heat sources like sunlight or in a drafty location, it may cause inaccurate readings.
  • Solution: Relocate the thermostat to a central location away from direct heat or cold sources for more accurate temperature control.

3. Wiring Problems

  • Problem: Loose or damaged wiring can prevent the thermostat from communicating with your furnace.
  • Solution: Check for frayed or disconnected wires behind the thermostat. If you’re not comfortable handling electrical components, contact a professional HVAC technician.

4. Dead Batteries

  • Problem: If your thermostat is battery-operated, dead batteries can cause it to stop working.
  • Solution: Replace the batteries and check if the thermostat resumes normal operation.

5. Thermostat Calibration

  • Problem: Over time, a thermostat can lose calibration, meaning the actual room temperature doesn’t match what the thermostat reads.
  • Solution: You can recalibrate some thermostats by following the manufacturer’s instructions. If that’s not possible, consider replacing the thermostat.

6. Outdated Thermostat

  • Problem: Older, non-programmable thermostats may become less efficient or unresponsive as they age.
  • Solution: Consider upgrading to a modern programmable or smart thermostat for better energy efficiency and more precise control.

7. Furnace Cycling Issues

  • Problem: If your furnace is short-cycling (turning on and off too quickly), it may indicate a thermostat problem or improper placement.
  • Solution: Check the thermostat settings and location. If the problem persists, you may need a professional HVAC inspection.

8. Dirty Thermostat

  • Problem: Dust and debris can accumulate inside the thermostat, causing mechanical or electrical malfunctions.
  • Solution: Clean the inside of the thermostat gently using a soft brush or compressed air.

Addressing these common thermostat issues can help restore your furnace’s efficiency. If troubleshooting doesn’t solve the problem, it may be time to consult an HVAC technician.



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See What Our Customers Are Saying:

by Private User on Twintech Heating and Cooling

I had them replace my furnace last year. When it came time for the air conditioner this year, I did not hesitate to call Twintech again. I will also have them perform regular maintenance on them.

by Robert, Ajax on Twintech Heating and Cooling

We required a new HVAC replacement after running the old
system for 18 years.
Dave understood our requirements and gave us a quote that
covered all the necessary items.
Installation was fast and very tidy. Everything works as
it should. Our thanks to Greg, Mitch and others for their
excellent work. Recommend this family owned business to
anyone else, considering HVAC or other work.

by John Armstrong, Pickering on Twintech Heating and Cooling

I needed a new furnace and A/C to replace my 21 yr. old units, and went to the internet to view potential companies in May, I received 3 quotes,
and chose Twintech based on their salesman Dave who was very detailed and covered off everything on what Twintech was all about,
an extremely dedicated company with so many years of experience, and after reading the on line reviews I was sold on Twintech, who did not disappoint as the installation team were top notch with Greg leading,
I would highly recommend this company without any doubts, in my books they are first class all the way. Our new Amana furnace and A/C are working perfectly !

by Private User on Twintech Heating and Cooling

Flawless transaction. They did exactly what they promised, showed-up on time, cleaned-up, and were highly professional. Highly recommended.

by Bill Edmondson on Twintech Heating and Cooling

Salesperson and 2 man installation team were all professional and
knew their stuff. All three were friendly and helpful, answering all
my questions. The quality of their work demonstrated their experience
and expertise in their field.

by Private User on Twintech Heating and Cooling

A dear late cousin of mine recommended this company and I have been happy with the service.

by Private User on Twintech Heating and Cooling

We are very pleased with the work done by Twintech. They were very professional from start to finish. Dave came to our home and gave us a very competitive quote for new high efficiency furnace and air conditioner. The installers were very courteous and professional. We would highly recommend them.

by W1n5t0n1987! on Twintech Heating and Cooling

Great experience getting an old furnace replaced.
Sales Guy (Dave) was great - honest, responsive, and friendly.
The work itself was done quickly and we are very happy with the outcome, thank you! We recommend TwinTech!

by Private User on Twintech Heating and Cooling

This review is late coming so my apologies to the amazing Twin Tech team! I contacted Dave at Twin Tech for a quote this past Feb (as I was collecting a few) and his recommendation was excellent. From the first meeting with Dave to the team installing the new furnace, not once did i feel uncomfortable . The team were extremely professional yet personable and clean and tidy. Decent companies still exist!
The new furnace just purrs and its just amazing the difference it has made!
(PS my sibling ended up getting a furnace from them as well)

by Private User on Twintech Heating and Cooling

The service was Twintech was excellent.
Dave our salesperson was easy to talk to and was professional. The unit recommended meets our needs and budget.
Greg and his team arrived on time for the installation and even got rid of the garbage the contractors left in our furnace.
Would definitely recommend Twintech.

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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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