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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- Outdated Model: Older thermostats may fail to regulate modern furnaces efficiently.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 23, 2022
It was a refreshing experience interacting with the Twintech team. From Bob, the sales consultant, who articulated in layman's terms all the options available and reasons for making any selection. This was done without the prevailing pressure tactics so commonplace today.
Before proceeding Mitch, the technician, at our request conducted a service check on our 30 yr old furnace. His report was positive indicating no urgency to replace it. Again no pressure tactics.
Three days after first meeting with Bob, the installation team of Greg and
Spencer completed the installation within the planned time frame.
A very professional, courteous and transparent team which delivered on their promise. I highly recommend Twintech.
Aug 22, 2022
Initial contact with sales resulted in an immediate response, which led to a timely installation. Both sales and installers were all very professional. I have no hesitation in recommending TWINTECH.
Aug 21, 2022
I had a great experience with TwinTech. The company offered a reasonable quote, and performed a quick and clean installation. The installer Greg was experienced, professional and courteous. He explained the services he performed and gave recommendations on maintain the new furnace.
The salesman Bob was honest
and professional and educated me on how to achieve optimal performance.
All communication from them was quick and they came the following day. I was pleased with the service and would recommend them.
Aug 20, 2022
From quote, to installation, to follow up, Twintech provided excellent service. I would highly recommended their services.
Aug 19, 2022
I had a really great experience with these guys. The salesman Bob was clearly very knowledgeable about everything to do with heating and cooling a home, spent a lot of time with us going over the details of the job, never rushed us and came back after the install to make sure we were happy. The installation crew was excellent, they covered the floors all the way from outside down to the basement furnace room, kept the place clean, got the work done on time and were very friendly. Ive got 15 years in the contracting/ construction industry and these guys are one of the most professional companys Ive dealt with. Great company!
Aug 18, 2022
Had great service and clean-up was good. Was happy with my salesman. They were very friendly and helpful. I needed a new furnace as our was over 20 years old. The furnace and air-conditioner work great and they are very quiet. I am very pleased with the service and product I received.
Aug 17, 2022
Met with Dave for the sales process and he was great about explaining and going over everything to us. The install happened very quickly and the team were super professional and friendly. We are very happy with this company and their services and we definitely recommend them to others. Thankful my sister recommended them to me!
Aug 16, 2022
Reviews for Twintech were good, and they did not disappoint. After an initial visit to discuss the suitable AC unit for replacement, an installation date was available in just a couple of days, and everything was installed without a hitch. Highly recommended
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.
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