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Google Nest error E298: Quick Fix

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Besides making the world’s most popular search engine and offering a ton of services, Google also makes some compelling hardware products, including its Pixel line of phones and Nest line of smart devices.

However, even a company as big as Google can’t avoid the random bugs and glitches plaguing tech forever. In this article, we’re looking at Google Nest error E298 and what you can do to fix the problem.

Check the battery

The first thing you should do is check your thermostat’s in-built batteries. If the batteries lose charge, there’s a chance that you might see a couple of error codes, including E298. Depending on your thermostat’s model, you can charge the battery by plugging the device in or simply swapping out AA or AAA cells. 

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Check HVAC wiring

Another possible cause for the E298 error is faults in the wiring that can lead to a “no power” alert. In such cases, check the thermostat wiring first to ensure there are no missing or faulty connections.

Nest thermostats can remotely control room temperature. | Source: Google.

If your thermostat is connected to a system requiring a C or common wire, check to see if that connection is working properly. Another is your HVAC system’s circuit breaker, fuse box or system switch. Check to ensure they’re all on and that the fuse is intact. Switching out the fuse in case it’s blown will more often than not fix the problem. 

Check HVAC state

Last but not least, your HVAC equipment needs to be in working order for the Nest thermostat to work without problems. The E298 error can indicate problems with the HVAC itself, such as a slow condensate drain. 

Clogged drains or dust filters can often cause HVAC systems to trip switches and shut off, further causing this error on the Nest thermostat. Check if your HVAC equipment is in working order and clean any clogged drains or dust filters to see if things start working again. 

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Yadullah Abidi

Yadullah Abidi

Yadullah is a Computer Science graduate who writes/edits/shoots/codes all things cybersecurity, gaming, and tech hardware. When he's not, he streams himself racing virtual cars. He's been writing and reporting on tech and cybersecurity with websites like Candid.Technology and MakeUseOf since 2018. You can contact him here: