Troubleshooting
Puritan Bennett 540™ Ventilator User’s Manual
3-21
3.8.2 Other Problems
provides other possible ventilator problems, causes, and corrective actions.
POWER SUPPLY LOSS
(without message)
Electrical power supply cut off by the main
switch when ventilation is in progress.
Press the I/O switch to restore electrical
power to the ventilator and allow
ventilation to continue.
To stop ventilation, press the
VENTILATION ON/OFF key for three
seconds (refer to chapter
).
The internal battery that supplies the
ventilator is entirely discharged.
Immediately connect the ventilator to an
AC power outlet or an external DC power
source; otherwise, use an alternate device
to ventilate the patient.
REMOTE ALARM FAULT
Nurse Call is disconnected.
Connect the Nurse Call cord to the
ventilator.
Relay control voltage problem.
Call for the maintenance technician and
carefully monitor the patient to detect
possible alarm triggering.
SOFTWARE VERSION
ERROR
Incorrect software version detected.
Call your customer service representative.
SPKR FAULT1, SPKR
FAULT2
REPLACE VENT
Defective internal buzzers.
Replace the ventilator and call your
customer service representative.
Internal technical problem that prevents
the very high priority “POWER SUPPLY
LOSS” alarm from triggering.
•
Call your customer service
representative.
•
Connect the ventilator to its AC power
supply. Ensure that the internal battery
is completely charged.
•
Ensure that the protective cover over
the I/O switch located on the rear of
the device is intact and functioning
properly. This cover helps prevent
accidental pressing of the I/O switch
and stoppage of the ventilation.
•
Ensure that the device is stabilized.
SPKR FAULT3
REPLACE VENT
Internal technical problem that prevents
the battery from correctly charging.
Replace the ventilator and call your
customer service representative.
SPKR FAULT4
REPLACE VENT
Internal technical problem that prevents
the battery warning buzzer from operating.
Replace the ventilator and call your
customer service representative.
Table 3-2.
Alarms and Corrective Actions (Continued)
Alarm Message or
Symptom
Possible Reason(s) For The Alarm Event
Corrective Action(s)
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