When your furnace keeps running after the temperature has been reached: Check the blower motor – Your forced air heating system uses a blower to push air through ducts and into your living space; sometimes, the blower runs at the same time that your furnace is heating the air, but sometimes it runs on its own.

Why is my thermostat going higher than setting?

Damaged Sensors



A thermostat turns on your heating system by determining the temperature of its environment with a sensor. If your thermostat’s sensor isn’t functioning properly or at all, the result is a room temperature that’s either higher or lower than your thermostat setting.

Why is my thermostat temp not going down?

If your unit isn’t calibrated correctly, this could lead to a thermostat not reaching set temperature. Luckily, a simple recalibration should do the trick. This problem typically occurs with newer thermostats or systems that just experienced a power outage. Older thermostats may also need a recalibration over time.

Why is my thermostat constantly running?

It may be that your home has reached the correct temperature, but the thermostat is not registering the conditions in the home. In this case, your A/C unit will continue running. One way to check the thermostat is to place another thermometer near the location of the thermostat. After an hour or two, check the reading.

Why does my heat keep going up?

Check the thermostat.



There may be a wiring problem or worn batteries. If changing the batteries doesn’t work, you will likely need a new thermostat.

Why is my Honeywell thermostat not reading temperature correctly?

Cleaning the inside of your thermostat may fix the issue. If there is too much dust inside, the sensor will have trouble working correctly. After cleaning, if you’re still having problems, you may want to recalibrate your sensor.

Why does my thermostat show wrong temperature?

Your thermostat will read the wrong temperature if it isn’t located in your home’s most optimal place. If it’s located near drafts or heat sources, or it’s in an area that isn’t centrally located, you may need to have it moved. If you can’t fix your thermostat problems, contact an HVAC professional soonest possible.

Why is my furnace not keeping up with thermostat?

A dirty filter blocks airflow, which can stop your furnace from heating up all the way. Be certain that you are changing your air filter when needed, as well as check that there are no large objects stacked around the furnace that are impeding airflow. Keep clean ducts and a clear path.

How do I know if my thermostat is bad?

7 Ways to Tell Your Thermostat Is Broken

  1. Thermostat Has No Power. …
  2. AC or Furnace Won’t Turn On. …
  3. Heater or AC Won’t Turn Off. …
  4. Thermostat Doesn’t Match Room Temperature. …
  5. Thermostat Doesn’t Respond. …
  6. Short Cycling. …
  7. Thermostat Forgets Programmed Settings. …
  8. Thermostat Replacement Services.


Why is my thermostat stuck on 68 degrees?

More than likely the problem could be that your thermostat isn’t properly working, and you just need to tweak it to make your system work at 100% again. If your thermostat is hard wired in double check the fuse or circuit breaker, if it is battery operated check to see if the batteries need to be replaced.

What do you do when your heat won’t stop running?

Check Out the Thermostat

  1. Ensure Your Thermostat is Set to “Auto” Your thermostat includes two settings, “auto” and “on,” that control your heating system’s blower motor. …
  2. Check Your Temperature Setting. …
  3. Put in Fresh Batteries. …
  4. Fan Limit Switch Needs Replacing. …
  5. Faulty Thermostat. …
  6. Air Ducts Are Leaking.


Why won’t my heat stop running?

The Thermostat Could Be Faulty



If your heater won’t turn off, the first thing you do is check the thermostat. The thermostat controls how the heating system runs. It detects the indoor temperature and signals the furnace to start or stop. So, if the thermostat malfunctions, it can signal the unit to run continuously.

Is it normal for heat to run constantly?

If your heat pump is constantly running, that means it’s working to maintain a comfortable airflow and temperature in your home. Believe it or not, the heat pump is designed to run almost continuously while it is working.

How do I recalibrate my Honeywell thermostat?

Resetting a Honeywell Thermostat

  1. Power off the thermostat and remove the batteries.
  2. Put the batteries in the wrong way, with negative to positive and positive to negative.
  3. Wait ten seconds and put them back in the correct way.
  4. Your thermostat will be reset to factory settings.


Does Honeywell thermostat have a reset button?

Does Honeywell Thermostat Have A Reset Button? Honeywell digital thermostats don’t have specific reset buttons. It will take some maneuvering to revert to the original settings on most Honeywell thermostat models. Whether programmable, non-programmable, or Wi-Fi models, each has unique instructions.

How do I calibrate my Honeywell thermostat?

Quote from the video:
Quote from Youtube video: Button. And once you get to the menu. Button i want you to go to preferences. This is to calibrate your thermostat just so you know and then after you get the preferences.

Do you have to calibrate a Honeywell thermostat?

Proper calibration is necessary for your thermostat to read the room temperature accurately and subsequently control your HVAC system properly. If your thermostat isn’t calibrated properly, it might cause your HVAC system to turn on and off frequently, run too long, or not run long enough.

How do I know if my thermostat is reading the correct temperature?

Checking a Thermostat’s Calibration



To do so, locate your home’s thermostat and tape an accurate thermometer on the wall next to it. Wait 15 minutes and check the temperature reading on both devices. If your readings are three or fewer degrees apart, you should be good to go.

How do I know if I need a new thermostat?

Signs You Need a New Thermostat

  1. Heating or cooling system will not turn off or on.
  2. The temperature reading is incorrect.
  3. Recent spike in your energy bill.
  4. Frequent temperature fluctuations.
  5. Thermostat is 10 years old or older.


Do House thermostats go bad?

Thermostats don’t typically have a set lifespan for maintenance, repair, or replacement (unlike air conditioners that need a tune-up every year). Still, you can generally expect your thermostat to last at least 10 years. After a decade, thermostats may start malfunctioning.

How much does it cost to replace a thermostat in your home?

Thermostat Replacement Cost



The average cost to replace a thermostat in a home is $140 to $350, including the unit and professional installation. Thermostat prices range from $15 to $250, depending on the type, brand, and features. Nest thermostat installation costs $100 to $200 for labor if the unit is provided.