PHILIPS Respironics Trilogy 202 User Manual page 122

The Alarms and Messages Screen will automatically display in place
of the Monitor screen when exiting from the menu system using the
Exit soft key when an alarm is displayed in the menu banner. If an
alarm is manually reset by the user or self-cancels, the menu banner
on-screen before the alarm occurred will reappear.
If a Ventilator Inoperative alarm occurs, the entire display screen
turns red and the Ventilator Inoperative message appears on-screen,
as shown below.
Alarm in Menu Banner
Screen
Ventilator Inoperative Alarm
Screen
Chapter 6 Ventilator Alarms
113