Additional Troubleshooting; Table 3-3. Additional Troubleshooting And Corrective Actions - Covidien Puritan Bennett 560 User Manual

Table 3-2. Alarms and Corrective Actions (Continued)
Alarm Message or
Symptom
VTI NOT REACHED
*IF PERSISTS
RESTART/SRVC

3.8.2 Additional Troubleshooting

Table 3-3 provides other possible ventilator problems, causes, and corrective actions.
Warning
If the device is damaged, its external housing is not correctly closed, or it behaves in a way that
is not described in this manual (excessive noise, heat emission, unusual odour, alarms not
triggered during the start-up procedure), the oxygen and power supplies should be
disconnected and use of the device stopped immediately.
If you cannot determine the cause of the problem, contact your equipment supplier. Do not use
the ventilator until the problem has been corrected.
Note:
Buzzer and battery alarms may occur when the unit is first powered on after the internal battery has been
completely drained. Connect to an AC power source and recycle power.
Many of the functions of the ventilator are not accessible when the Locking key
additional assistance contact your Clinician or equipment representative.

Table 3-3. Additional Troubleshooting and Corrective Actions

Conditions
No access to the
waveforms
The screen
backlight never
switches off
during ventilation
Alarm sound level
too low or too high
Poor visibility of
the displays
Unusual display
on the screen
The ventilator does
not operate after
pressing
I/O switch
User's Manual
Possible Reason(s) For The Alarm Event
Defective inspiratory flow sensor or internal
leak of the machine.
I time is not long enough to deliver set VT.
Possible Causes
Display waveform set to OFF in
Preferences menu.
Backlight set to OFF in Preferences
menu.
Adjustment of the alarm sound level is
incompatible with the patient's
environment.
Contrast adjustment is incompatible
with the luminosity of the environment.
Problem with the display unit.
No external power source and the
internal battery is completely
discharged.
Alarms and Troubleshooting
Corrective Action(s)
Restart ventilator to see if alarm clears. If
not, replace the defective device(s) and
have a skilled technician check them.
Call your customer service representative.
is enabled. For
Corrective Actions
Set Display waveform to YES in
Preferences menu.
Set Backlight to YES in Preferences
menu.
Re-adjust sound level.
Re-adjust contrast.
Adjust contrast or call your customer
service representative if the problem
persists.
Ensure that the ventilator is not exposed
to direct radiation from the sun.
Connect the ventilator to the AC power
source.
3-25