Unresponsive Thermostat? Check Out These Four Possible Causes

Your home’s thermostat is one of the only parts of your HVAC system that you use all year long. It’s central to your family’s comfort, so an unresponsive thermostat can throw your whole house out of whack. Keep reading to learn four possible causes of an unresponsive thermostat and how to fix them.

1. Dirty Equipment

Like the rest of your HVAC system, your thermostat collects dirt, dust, and lint over time. As gunk builds up, it interferes with how your thermostat operates and reduces its efficiency. If you haven’t cleaned your thermostat unit recently, or maybe ever, take off the thermostat cover and gently clean underneath it.

The best way to clean your thermostat is to wipe away the dirt and dust with a soft cloth. It’s important to be extra cautious while cleaning your thermostat unit to avoid messing up any of the wirings.

2. Issues with the Power Supply

If your thermostat’s screen is completely blank and won’t turn on, there may be an issue with the power supply. Try replacing your thermostat’s batteries, and then check your home’s electrical panel for any blown fuses or tripped breakers. After that, if your thermostat is still unresponsive, you know the problem is somewhere else.

3. It’s on the Wrong Mode

If your thermostat’s screen is working, but you can’t adjust the temperature, it may just be in the wrong mode. It may sound silly, but if your thermostat gets bumped or someone else tweaks the settings, it may be in a mode that doesn’t let you change the temperature.

Someone else in your home may have set the thermostat and locked it. Most thermostats have a lock feature, which makes it impossible to change the settings. This is easy to resolve by simply turning off the lock feature.

Some models of thermostats don’t allow you to manually adjust the temperature when they’re on Auto mode. Try switching your thermostat to Heat or Cool and see if that solves the problem.

4. Corrosion on the Wiring

Corrosion on your thermostat’s wiring can be a big problem and usually indicates the need for a new thermostat. To check your thermostat’s wiring, remove the cover and visually inspect the wiring you can see. If you see any corrosion, call a trusted local professional right away to determine the next steps you should take.

If none of these solutions correct your unresponsive thermostat, reach out to the pros at Cascade Mechanical for solutions you can count on.