Problem Solution
SpO
2
sensor icon
continues to ash yellow
Make sure the nger probe is correctly and securely placed
on your nger. If the sensor icon continues to ash after
adjusting the sensor, you should go to sleep as planned
Eort belt sensor icon
continues to ash yellow
Make sure the eort belt is securely connected to the
Alice NightOne device. Also, make sure the belt is placed
correctly around your chest and ts snugly to ensure there
is enough tension on the belt. If the belt is too tight, slightly
loosen the belt to ensure there is not too much tension. If
the sensor icon continues to ash after adjusting the sensor,
you should go to sleep as planned
Airow sensor icon
continues to ash yellow
Make sure the airow sensor is properly routed behind
your ears and under the chin with the airow sensor prongs
facing up inside your nostrils. Also, make sure you are
breathing through your nose. If the sensor icon continues
to ash after adjusting the sensor, you should go to sleep
as planned
Eort belt buckle unsnaps
from the device
Make sure both buckle latches are rmly seated into place
when connecting to the device
Alice NightOne will not
start the study
Press and hold the user button or connect the eort belt to
initiate the guided setup and begin recording. If no lights are
displayed, remove and replace the batteries and try again
When trying to display
the Good Study Indicator
at the end of a study, the
guided setup begins
Press and hold the user button until the Good Study
Indicator ashes. Then, quickly press and release the user
button and the Good Study Indicator will be displayed
Two sections (the rst
quadrant and the fourth
quadrant) of the Good
Study Indicator are ashing
yellow, no sensor icons are
displayed, and the device
does not respond to any
button presses
There may be a device error. Contact Philips Sleep Support
Team on Freephone 0800 652 0303 (Lines are open
Monday to Friday 9am to 7pm)