If you’re a Nest thermostat owner and you’ve been dealing with a “w5” error that prevents it from connecting to the internet, Google is willing to help.

The company has acknowledged the existence of a hardware fault leading to the w5 error some Nest owners have encountered. And while it’s still not clear exactly what is causing the problem, Google will replace thermostats if the normal troubleshooting steps fail.

The company confirmed as much in a statement provided to Android Police. 

“This does not affect the thermostat’s ability to control the customer’s heating and cooling system in the home, but does impact the user’s ability to manage the thermostat remotely,” a part of the statement reads. “If a user sees this [w5] error and it can’t be resolved through troubleshooting, they are prompted to contact customer support for assistance and will be issued a replacement device.”

There’s also a support page specifically for those running into a w5 error on their Nest thermostat. Google’s statement notes that only “a very small number” of users are affected by the issue, though a lengthy support thread dating back to Nov. 2019 and its 200+ replies suggests otherwise.

If you’ve been running into connectivity issues with your Nest thermostat, you might want to check and see if this is the problem so you can get that replacement process started.

Overseas domestic helper.