Google Nest Thermostat Error Code E298: How to Fix It

Q: What does error E298 mean on a Nest thermostat?

Error E298 indicates the fan is running but not moving air, often due to a clogged filter, stuck fan blade, or wiring issue.

Q: How do I reset my Nest thermostat for error E298?

Go to Settings > Reset > Restart. This reboots the thermostat and may clear temporary errors.

Q: Can a dirty air filter cause Nest error E298?

Yes, a dirty filter restricts airflow, making the fan seem like it's not blowing. Replace the filter first.

Q: Do I need a professional to fix error E298?

Not always. You can check the filter and wiring yourself. But if the fan motor or control board is faulty, you may need a technician.

Q: Why is my Nest thermostat fan running but no air coming out?

This is exactly error E298. Common causes: blocked filter, stuck fan blade, loose wire (especially G wire), or bad fan relay.

Abstract

Your Nest thermostat shows error code E298, meaning the fan is running but not moving air. This usually indicates a blocked air filter, a stuck fan blade, or a wiring issue. Follow these steps to get your system blowing again.