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Furnace: Malfunctioning Thermostat?
Posted On: December 5, 2024
If you're experiencing issues with your furnace, a malfunctioning thermostat might be the culprit. Here's how to identify the problem and address it:
Signs of a Malfunctioning Thermostat
- Temperature Discrepancies: The room feels colder or hotter than the thermostat's settings.
- Frequent Cycling: The furnace turns on and off too frequently, or not at all.
- Unresponsive Thermostat: The display is blank, or the unit doesn't respond to adjustments.
- Incorrect Readings: The temperature displayed on the thermostat doesn’t match the actual room temperature.
Common Causes
- Dead Batteries: For battery-powered thermostats, this is often an easy fix.
- Dirt or Debris: Dust can interfere with sensors or electrical connections.
- Loose Wiring: Wires inside the thermostat can loosen over time, disrupting communication with the furnace.
- Outdated Model: Older thermostats may fail to regulate modern furnaces efficiently.
Troubleshooting Steps
- Check Power: Ensure the thermostat has power. Replace batteries or check circuit breakers if necessary.
- Clean the Unit: Remove the cover and gently clean any dirt or debris with a soft brush.
- Verify Settings: Ensure the thermostat is set to "Heat" and the temperature is above the current room temperature.
- Inspect Wiring: Check for loose or frayed wires, but only if you're comfortable doing so.
When to Call a Professional
If troubleshooting doesn’t resolve the issue, a professional HVAC technician can:
- Test the thermostat for defects.
- Check furnace compatibility with the thermostat.
- Install a new, energy-efficient model if needed.
Upgrading to a programmable or smart thermostat could also improve efficiency and comfort in your home.
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See What Our Customers Are Saying:
Aug 16, 2022
Very pleased with the installation of our new furnace and A/C unit. From quotation stage to the completion of the job Twintech was very professional.
Thank you for a job well done.
Aug 15, 2022
My old water heater quit on me. I called TwinTech. In less than 4 days, I had my new water heater installed and the old one taken away. The whole process was quick, easy, pleasant, and well done. This is the third time I've dealt with TwinTech and I've been satisfied each time.
Aug 14, 2022
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.
Aug 13, 2022
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.
Aug 12, 2022
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 !
Aug 11, 2022
Flawless transaction. They did exactly what they promised, showed-up on time, cleaned-up, and were highly professional. Highly recommended.
Aug 10, 2022
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.
Aug 9, 2022
A dear late cousin of mine recommended this company and I have been happy with the service.
Aug 8, 2022
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.
Aug 7, 2022
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!
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