4 Tips to Fix Carrier Thermostat Blank Screen Problems

Has your Carrier thermostat screen suddenly gone blank? I’m here to help!

In this post, I’ll walk you through some handy tips to get your Carrier thermostat screen issues fixed. If that sounds like what you’re looking for, let’s head right into it.

In short, if your Carrier thermostat screen is blank, a quick way to fix this is to replace the batteries in your thermostat (for a battery-powered thermostat). If your thermostat has no batteries, flip your HVAC system circuit breaker switch off and back on. This should resolve the issue.

However, if this doesn’t help, you want to keep reading for more details on how to overcome this problem.

Tips to Troubleshoot Carrier Thermostat Blank Screen Issues

1. Inspect the Batteries

If your Carrier thermostat has batteries, a low/dead battery may be the reason for the blank screen.

Replacing the batteries should help fix the blank screen problem. But before you replace the batteries, first take the old batteries out and use a soft cloth to clean the battery terminals.

Now reinsert the old batteries and make sure you place the positive end of each battery in the right order (observing polarity markings).

Wait to see if your thermostat display comes up properly. If not, get a new set of batteries and replace the old ones. Do not mix old batteries with new ones.

If your thermostat display remains blank after replacing the batteries, continue to the next step.

2. Power Cycle the Thermostat (via your breaker)

Another way to troubleshoot blank screen issues in your Carrier thermostat is to power cycle the device through your circuit breaker.

Go to your circuit breaker box and locate your HVAC system switch. It’s usually labeled “HVAC”, “AC”, or “Air Conditioning.” When you find the switch, flip it off. Then wait a few seconds and flip it back on.

Now return to your thermostat to see if the blank screen issue is resolved. If not, continue to the next step.

3. Check for Blown Fuse

A blown fuse could also be the reason your Carrier thermostat screen is blank.

Go to your fuse box (if you have one) and check if any fuse is blown. If so, get it replaced.

You’ll need a multimeter to test for a blown fuse. If you’re not sure how to do that, get an expert to help you.

4. Call an HVAC Expert

Wiring issues (and the like) could also be the reason your Carrier thermostat screen stops working. If you’ve tried the above fixes but the problem persists, get an HVAC expert to check your thermostat.

Wrapping Up

If your Carrier thermostat display is blank, a power issue is likely the culprit.

Flipping your HVAC circuit breaker switch off and back on should help fix the problem.

More so, if your thermostat is battery-powered, replacing the batteries could do the trick.

If your Carrier thermostat display remains blank after applying all these fixes, call an HVAC expert to inspect your thermostat and HVAC system.