Thermostat Display Not Working? Here’s How to Fix It!

This article provides a step-by-step guide to solving a thermostat display not working issue. It covers checking the power source, batteries, and wiring, resetting the thermostat, and calling a professional if necessary. By following these steps, readers can quickly and easily solve this problem and ensure that their home remains comfortable.


A thermostat is an essential device that helps regulate the temperature of your home. However, when the display on your thermostat stops working, it can be a cause for concern. This problem can usually be solved quickly and easily, even if you don’t have any technical expertise. In this article, we will guide you through the steps you need to take to solve a thermostat display not working issue.

Step 1: Check the Power Source

The power source is the first thing to check when your thermostat display is not working. Ensure that the thermostat is properly connected to the power source and that the circuit breaker for the thermostat is not tripped. If the circuit breaker has tripped, reset it and check if the display comes back on.

Step 2: Check the Batteries

If your thermostat is battery-powered, then check the batteries. The batteries may be dead, which can cause the display to stop working. If this is the case, replace the batteries with fresh ones, and see if the display comes back on.

Step 3: Check the Wiring

If your thermostat is hardwired, then check the wiring. Ensure that the wires are properly connected and that none are loose or damaged. If you find any loose or damaged wires, you will need to call a professional to fix them.

Step 4: Reset the Thermostat

If the power source, batteries, and wiring are all fine, try resetting the thermostat. To reset the thermostat, turn off the power source and remove the thermostat from the wall. Wait for at least 30 seconds, then reattach the thermostat to the wall and turn the power source back on.

Step 5: Call a Professional

If none of the above steps work, it’s time to call a professional. An experienced technician will be able to diagnose the problem and fix it. It’s important to note that trying to fix a complicated problem on your own can cause further damage to the thermostat or even cause harm to yourself.


In conclusion, a thermostat display not working issue can be caused by several factors. The first step is to check the power source, batteries, and wiring. If all of these are fine, try resetting the thermostat. If the problem persists, then call a professional for help. By following these steps, you can solve the problem quickly and easily, ensuring that your home stays comfortable and your HVAC system runs efficiently.

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