A specific light color isn't working

If some lights on your mask are working but one color (most commonly red) has stopped functioning, this guide will help you determine whether it's a settings issue or a hardware fault.

First: understand that colors change by design

The mask cycles through different colors as part of each mode. What looks like a "missing" color may simply be the mask transitioning between stages of a session.

For example, in Mode 1:

• First 10 minutes: red
• Next 5 minutes: blue
• Final 5 minutes: dark red

If you start a session and only see blue, the red portion may have already played or the mask may be in a different mode than expected.

Check page 37 of your instruction manual for the full color sequence for each mode.

If a specific color is genuinely not working

These questions help us identify whether the issue is with the face mask, the neck piece, or the remote:

1. Does the color work in the neck piece but not the face mask, or vice versa? If one section works and the other doesn't, this helps narrow down where the fault is.

2. Does the color appear at all, or does it flicker briefly then stop? A flickering light that cuts out may indicate a connection issue or a failing LED.

3. Have you tried a different mode? Some colors only appear in certain modes. Try cycling through all modes using both the top and bottom buttons to see if the color appears in any mode.

4. Is the remote fully charged? A low battery can cause inconsistent light behavior. Fully charge the remote for 3 hours and test again.

Confirming a defective light

If after testing all modes and fully charging the remote a specific color still does not appear in any mode on any part of the mask, the LED may be defective.

Please contact us at support@chouohctokyo.com. We'll ask you to send a short video of the mask turned on, clearly showing the color that's not working, so our team can assess the issue.