B
A
C
D
Blue light shows TTFields
are being delivered
Is there hair stubble beginning to grow?
Even if there is a small amount of hair growth, a new set of arrays
should be applied after shaving. See Guide to Scalp Care for more tips.
Are the arrays too warm?
Direct sunlight should be avoided. A breathable head covering could
be helpful, as well as a fan. If sweat causes arrays to shift, they should
be changed.
B ATTERIES
Is the yellow battery light on?
This is a great time to swap batteries for a full charge. When the battery
is low, you will hear an alarm.
Have you checked the battery gauge?
If the gauge shows only 1 dot, the battery should be changed.
C ONNECTION
Are any transducer array connectors loose?
All array cables need to be fully inserted into the connection box.
Is the connection cable plugged into the device?
The gray connection cable should be gently inserted into the device
with the arrows lined up. You should hear a click.
D EVICE
Are you hearing an alarm right after turning Optune on but BEFORE
pressing the TTFields button?
Device should be turned o, and the battery changed. Then the device can
be turned on.
Do you hear a rattling noise coming from the device, or has it been
damaged?
You can call nCompass
®
support for troubleshooting assistance.
A RRAYS
Are the arrays in good contact with your skin?
If not, using tape or Surgilast
®
can ensure good contact with the scalp.
When was the last time you changed your arrays?
Arrays should be changed at least 2 times per week (every 4 days at most).
Optune is designed to alert you if treatment is not being delivered.
The following items can cause your device to alarm.
What causes Optune
®
alarms?
If you hear an alarm, an issue
may be happening with ABCD
Contact nCompass
®
24/7
for any questions or technical support
*
Call us toll free, any time of day:
1-855-281-9301 (toll free)
Or email:
support@novocure.com
• If you turn on Optune without pressing
the TTFields button, an alarm will
sound after 10 minutes and the blue
TTFields light will flash
• Press the TTFields button 1 time to
silence the alarm. Press the TTFields
button a second time to start therapy
* nCompass cannot provide you with medical advice.
Consult with your doctor for medical-related questions.
©2022 Novocure GmbH. All rights reserved. nCompass, Novocure, and Optune are registered trademarks of Novocure GmbH.
US-OPT-02683v2.0 January 2022
Did you know Optune
®
has a timer?
Optune
®
Troubleshooting
Tips
Craig is an
Optune user
and Patient
Ambassador.
Patient images reflect the health status of the
patients at the time each photo was taken.
GUIDE TO UNDERSTANDING ALARMS
S:12.5"
S:16.5"
T:13"
T:17"
B:13.25"
B:17.25"
F:8.5"F:8.5"
F:6.5" F:6.5"
To Next Page
General