Coway Air Purifier Error Code 3: How to Fix It

Q: What does error code 3 mean on a Coway air purifier?

Error code 3 indicates that the filter needs to be replaced. It is a maintenance reminder that typically appears after 12 months of use.

Q: How do I reset the filter indicator on a Coway air purifier?

After replacing the filter, press and hold the Filter Reset button (often marked with a wrench or filter icon) for 3-5 seconds until the error code disappears.

Q: How often should I replace the filter in my Coway air purifier?

Coway recommends replacing the filter every 12 months, or sooner if you use the purifier heavily or in a dusty environment.

Q: Can I use a third-party filter for my Coway air purifier?

Yes, but ensure it is compatible with your specific model. Using genuine Coway filters is recommended for optimal performance and warranty compliance.

Q: Why is my Coway air purifier showing error code 3 after replacing the filter?

You may need to reset the filter indicator manually. If the error persists, check that the filter is installed correctly and that the front panel is securely closed.

Abstract

Error code 3 on your Coway air purifier indicates that the filter needs to be replaced. After 12 months of use, the purifier will show this reminder to ensure optimal performance. This guide will walk you through replacing the filter and resetting the error code.