Coway Air Purifiers Troubleshooting

Find solutions for common Coway air purifiers problems. Step-by-step guides to get your devices working again.

Browse 2 troubleshooting guides for Coway air purifiers. Each guide targets a specific problem — from initial setup and connectivity issues to performance drops and error codes — with step-by-step instructions, difficulty ratings, and estimated repair times. Select a guide below to start fixing your Coway device.

Founded in 1989 in Seoul, South Korea, Coway built its reputation on water purifiers, bidets, and air purifiers sold on a rental-and-service model, and expanded into the United States under the Airmega brand. The company became part of the Netmarble group in 2019. Coway's smart air purifiers use las...

Troubleshooting Guides (2)

Coway Airmega Filter Light Won't Reset or Air Quality Stays Red

Device: Coway Airmega Air Purifier (Airmega 400S, 250S, 300S, AP-1512HHS Mighty)

After changing the filter the red light stays on, or the air-quality ring keeps glowing red. On the Airmega these are two different red lights with two different fixes, so the first job is telling them apart.

easy 10 minutes 25 views

Coway Airmega Won't Connect to WiFi or the IoCare App

Device: Coway Airmega Air Purifier (Airmega 400S, 250S, 300S, AP-1512HHS Mighty, IconS)

Your Coway Airmega will not pair with the IoCare app or keeps failing during WiFi setup. On the Airmega the cause is nearly always the 2.4GHz requirement, a WiFi password the unit cannot handle, or the phone dropping off WiFi mid-setup.

easy 15 minutes 14 views

Official Coway Support Resources

Official Website Support Center