There are two reasons why the orange light might illuminate:

1. The sensor detects that the pressure in the oral cavity is higher than the setting. The device is telling the user to reduce efforts to create suction in the mouth.
2. The light can also indicate that the saliva container is full, which rarely occurs.

This light will not affect the operation of iNAP.

To turn off the orange light, power cycle the iNAP: keep pressing the button until it turns off, and on again.