10  | Product Guide  | 
LED Explanations
SUB Status Indicator | State | Additional Information | 
Solid white | Powered up and | If the associated Sonos player’s white light indicator is turned off, the SUB’s  | 
  | associated with a Sonos  | indicator will also be turned off.  | 
  | player  | 
  | 
Solid green  | Muted  | 
  | 
Flashing white  | Powering up (booting)  | 
  | 
Flashing green  | SUB audio is off  | SUB audio has been disabled. See "SUB Settings" on page 6 for more  | 
  | 
  | information.  | 
Flashing white and green  | Not associated with a  | 
  | 
  | Sonos player  | 
  | 
Flashing orange  | Warning mode  | The SUB is beginning to experience a fault condition and will reduce to 75%  | 
  | 
  | volume.  | 
  | 
  | • Check the vent slot for adequate cooling  | 
  | 
  | • Check for speaker short circuit  | 
  | 
  | • Check the room temperature to make sure it’s less than 104°F/ 40° C  | 
  | 
  | • If the SUB is in direct sunlight, provide shade  | 
  | 
  | Mute and then unmute the Sonos component  | 
  | 
  | Unplug the SUB for several minutes to allow it to cool  | 
Flashing orange and then white  | Fault mode  | If the fault condition (above) is not remedied, the Sonos component will  | 
  | 
  | automatically mute itself to prevent damage.  |