Trane Thermostat Keeps Rebooting: How to Troubleshoot

Is your Trane thermostat rebooting non-stop? I experienced the same issue recently.

However, after doing some research, I found a way to fix the problem.

Trane Thermostat Rebooting

If you’re experiencing the same problem and wondering how to go about it, keep reading.

In short, if your Trane thermostat keeps rebooting, dirt/dust or low battery power could be the culprit. Get a soft cloth and clean the thermostat. If the problem persists, replace the batteries (for battery-powered Trane thermostat), or power cycle the thermostat.

If the problem persists, keep reading for more details on how to resolve this problem.

Wipe the Dust on Your Thermostat 

Your Trane thermostat might keep rebooting because it is dirty. Dirt and dust may seem harmless to you, but could sometimes affect the proper functioning of a device.

Remove the cover of your thermostat and dust off the interior with a clean, dry cloth. Once the thermostat is free of dirt, replace the cover and study the device for 5 minutes.

If your thermostat stays on within this time, you have resolved the issue. But if the rebooting problem persists, continue to the next step.

Replace the Batteries in Your Thermostat

Low batteries in your Trane thermostat might cause the device to reboot continuously. The batteries in the thermostat supplies most of the power in the device. So, if these batteries are low, your thermostat won’t be able to stay on for a long time.

You can fix this issue by changing the thermostat’s batteries. You’ll need 3 new AAA batteries.

Follow these steps to replace the batteries on your Trane thermostat:

  • Grab your thermostat at the top and bottom
  • Then pull it carefully until you unmount the device from the wall.
  • Turn the device over to reveal the batteries.
  • Remove all the old batteries from the battery compartment.
  • Now, get the new batteries and insert them into the compartment. Make sure you’ve positioned the batteries appropriately in the case.
  • Once you’ve finished inserting the new batteries, remount your thermostat to the wall.

Now, wait a few minutes to see if the thermostat keeps rebooting. If it does, move on to the next step.

Test Your Circuit Breaker

If your Trane thermostat has been power cycling non-stop, your circuit breaker might be faulty. To rule out this problem, you’ll need to test your circuit breaker.

Here’s how to do that:

  • Make sure you have another smart device in your home apart from your thermostat. A smart hub will suffice for this test.
  • Keep your smart hub (or another smart device) plugged into power.
  • Flip off your circuit breaker.
  • Then move it back to the ‘On’ position.

Now, check if your smart hub is rebooting.

If the smart hub reboots, your circuit breaker is working properly.

But if the hub stays on throughout the circuit breaker test, your breaker might be faulty.

Ask your electrician to inspect your breaker if you suspect it is malfunctioning.

However, if you’ve confirmed that your circuit breaker is working well, but your thermostat keeps rebooting, try the next step.

Clean the Air Filters in Your HVAC System

Your thermostat isn’t the only device that reacts to dirt. When your HVAC system contains debris, it might start malfunctioning.

By extension, the Trane thermostat might also misbehave because it can’t manage the HVAC system.

You can resolve this problem by cleaning the air filters in your HVAC system. This is because all the dirt in the HVAC system is stored in the air filters.

The guide below will show you how to clean your air filters:

  • Turn off your HVAC system. If the system doesn’t have a switch, flip off your circuit breaker.
  • Search for the vent on your HVAC (air conditioner or furnace). When you find the vent, use a screwdriver to detach it from the system.
  • You should see your air filter here. Remove the air filter from your HVAC system.
  • Now, take the filter outside for vacuuming.
  • Run the brush attached to your vacuum cleaner through the air filter. Make sure to take out all the dirt stuck in the air filter.
  • After cleaning the air filter thoroughly, fill your sink with some amount of water.
  • Add some distilled vinegar in the same quantity as the water in your sink.
  • Soak the air filter in the solution for one hour.
  • Then rinse the filter with water.
  • Leave the air filter outside to air-dry.
  • Once the filter is completely dry, re-insert it into your HVAC system.
  • Finally, fix the vent back onto the HVAC system with your screwdriver.

Now, turn your HVAC system and observe your Trane thermostat.

Is the thermostat still rebooting? If it is, proceed to the next tip.

Move Your Thermostat Away from Other Smart Appliances

Usually, smart appliances like televisions and electric lamps, often radiate heat after they’ve been working for a while. If you place your thermostat near any of these appliances, the device may confuse the heat coming from them as the actual temperature in the room.

As such, the thermostat may reboot to regulate the supposed room temperature.

Since the heat from most electronic appliances increases as you keep using them, your thermostat might keep rebooting for a long time.

To fix this issue, move the thermostat away from other smart devices in your home. You can remount the thermostat on a wall that isn’t exposed to sunlight. The wall at the center of your home might be a good place to reinstall your thermostat.

If your thermostat continues rebooting after you’ve changed its location, move on to the next step.

Change Your HVAC System

If your HVAC system is too small or too large for your home, it might cause your Trane thermostat to keep going off and on.

For instance, if your AC is too large, the device might distribute excess cool air around your home. Due to this issue, your home will be colder than the set temperature on your thermostat.

When this occurs, the thermostat will reboot and turn on the furnace to increase the temperature in the room.

But as soon as the temperature is raised, the room may become too warm. Again, the thermostat will reboot to turn off the furnace.  Now, your room will become too cold, and the thermostat will repeat this process all over again.

Your thermostat may keep going off and on as often as it repeats the procedure.

In contrast, a small air conditioner will take too long to get your home cool enough to reach the desired temperature. This may cause the thermostat to think that the furnace is still on when it is already off.

As such, the thermostat may keep rebooting to ‘switch off’ the furnace until your home is cool enough.

If you suspect that your HVAC system is too small or too large, you’ll need to replace the system.

Closing Thoughts

If you’ve applied all the steps above, yet your thermostat still reboots continuously, the device might be faulty.

Contact your technician and ask them to examine your thermostat. The technician will tell you whether you need to fix or change your thermostat

You may also like to see how to troubleshoot Trane thermostat blank screen issues and cooling issues.