Warning Screens - Cardinal Health AirLife nCPAP Hardware Service Manual

Alarm Priority
Flow/Pressure Not an alarm
Sensor Failure Notification only
Non-Fatal Software High
Fault
Fatal Software Fault High

15.2 Warning Screens

The following table defines the potential Warning Screens that may appear during the Power-
On Self Test and during Patient Treatment Mode (the main screen). The most likely fault
modes and potential actions to remedy the condition are also included.
Warning Screen
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Indication
• Audible alarm
• Yellow flashing Warning
LED
• Sensor Calibration
Failure Warning Screen
• Audible alarm
• Red flashing Fault LED
• Message Bar
• Continuous Audible
alarm
• Red Fault LED
• Warning Screen
Description
Power-On Self Test Warning Screens
Indicates that the inlet gas
source (or sources, as
indicated in the specific
Warning Screen) is/are
below the minimum
specified operating range.
Indicates that the inlet gas
source (or sources, as
indicated in the specific
Warning Screen) is/are
above the maximum
specified operating range.
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AirLife nCPAP Driver Service Manual
Suggested Action
• Make sure patient is disconnected from circuit and restart
driver.
• Follow on-screen directions
• Record the Fault code
• Follow on-screen directions
• Driver will cease operation
• No Patient flow
• Remove Patient from driver
• Record the Fault code
• Follow on-screen directions
• Remove driver from service
Possible Fault
Air and/or Oxygen gas
sources are not
connected or below the
minimum specified
range
Clogged inlet filter
screens
Faulty or defective inlet
pressure sensor(s)
Air and/or Oxygen gas
sources are above the
maximum specified
range
Faulty or defective inlet
pressure sensor(s)
Suggested Action
Connect and/or adjust the
gas source inlet pressure(s)
to within the specified
tolerance of 41 – 66 psig
Inspect and/or replace the
inlet filter screens
Service and/or replace the
Manifold Assembly
Adjust/regulate the gas
source inlet pressure(s) to
within the specified
tolerance of 41 – 66 psig
Service and/or replace the
Manifold Assembly