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Why The Room Temperature Does Not Match the Thermostat Setting


Thanks to this small box, your house can be as warm or as cold as you want it to be. This is only true if the room temperature is the same as the thermostat setting. There’s no point in employing it if it doesn’t suit the bill. 

So, are you using your thermostat to set a temperature, but the room temperature does not match? This could be due to a variety of factors. The issue is most likely with your thermostat, and you should take a systematic approach to troubleshooting.

Air filters need to be clean first to match the temperature in your room with the thermostat setting. The thermostat’s internal wiring and corrosion, as well as dust, might cause it to malfunction. If your thermostat is more than 15 years old, it may be time to replace it. 

Here are some important points to look for when your thermostat stops operating.

Check for the temperature discrepancy between what your thermostat says it should be and what the room feels like before moving on to the next phase of the troubleshooting process.

The following troubleshooting steps should work for the majority of thermostats. Here’s how to fix the majority of the issues you might run into:

  • Make sure the thermostat is plugged into the wall. Occasionally, the batteries in individual thermostats fail. Swap the batteries and watch what happens to your thermostat’s readings to see if this fixes the problem.

  • Make sure the filter in your furnace is clean. If your furnace’s air filter is blocked, it might impede the passage of air through the system. Your furnace cannot discharge the heated air, although it’s working hard to achieve the appropriate temperature. Changing your furnace filter will resolve this problem.

  • Make sure the temperature in your home is set correctly with the thermostat. You may have a faulty thermostat that is not properly calculating the temperature. 

If none of these suggestions work, call the heating specialists you have come to trust. HVAC technicians check for this when dealing with clients experiencing problems with their thermostats.

Location Of The Thermostat 

The problem you are facing with your thermostat could be due to its position. If your thermostat is close to the furnace, it will read the room’s temperature first and turn off the furnace before heating the rest of the home.

The thermostat location should be in direct contact with windows, vents, and sunlight. If a room is in direct sunshine and is warmer than the rest of the house, the thermostat will believe the home has reached the appropriate room temperature. The most accurate readings are obtained by properly positioning a thermostat.

Cleanliness Of The Thermostat

Your thermostat has a faceplate that can accumulate dust. Over time, smudges, smoke, and other forms of dirt and debris can accumulate on a thermostat. Remove the faceplate and use a soft cloth or compressed air to clean the insides. The thermostat’s wiring may be the source of the problem as well. Tighten and secure anything that appears to be loose. 

Thermostats have their cleaning processes but use the correct tools and chemicals to avoid harm. Check the instruction booklet first if you are not sure what to use. If that doesn’t work, get in touch with the specialist. Finally, you can check for the solutions on the internet, but keep in mind that they may not apply to your thermostat.

Invest In A New Thermostat 

In certain older dwellings, a mercury gauge can measure the temperature. If your mercury switch is tilted, it may impact the accuracy of your thermostat. Check your thermostat to see whether the temperature in your home has changed.

If you still use a mercury thermostat, now is a good time to switch to a programmable one. To save money on your utility bills, you should use programmable thermostats to set different temperatures throughout the day. If you turn the heat down at night, you will notice a difference in your energy bill. 

Smart thermostats are also operated via your smartphone or virtual assistant to control your home’s electricity usage.

Replace Your Thermostat When Required

For the most part, thermostats have a life of 10 to 15 years. If you can’t get your thermostat to work correctly or have a problem with it that is not repairable, you will probably need to replace it. If you have not been able to get your thermostat to function correctly for a long time, you might want to consider replacing it.

Thermostat Troubleshooting Guide 

The most common reason for your thermostat not turning on is that the batteries are dead. The answer is also straightforward:


  • Replace the batteries and see whether your thermostat turns on again. If changing the batteries doesn’t solve the problem, the problem could be with your home’s primary power source.
  • If you can safely reach your circuit breaker, turn it on and off to restore power to your thermostat.
  • If the problem isn’t with the batteries or the breaker, hire an expert to troubleshoot your system.


Apart from that, attaching a thermometer to a piece of paper towel fastened to the wall near your thermostat (to ensure that the thermometer isn’t reading the wall’s temperature) is an easy way to check its accuracy.

Compare the results after around 15 minutes of incubation. Remember that your thermostat rounds off the current reading by one decimal place to minimize confusion.


Every homeowner and business should have a smart thermostat. These devices make it easier to set the temperature in a space, but they also help you save money. These gadgets are controlled via an app on your phone. Furthermore, by reducing misuse, it extends the life of your HVAC systems.

It is attracting the attention of homeowners due to its numerous features and benefits. Why not give it a shot? By searching online, you can compare prices, reviews, features, and specifications of the finest smart thermostats. You may install a thermostat that best suits your needs once you have decided which one is right for you.

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