Alarm messages
7-2
10070389 Rev. A
Puritan Bennett™ 700 Series Ventilator System Service Manual
7.2 Responding to alarms
1.
Silence the audible alarm for two minutes (where possible) by pressing the alarm silence
key.
2.
Correct the condition, if necessary, referring to Table 7-2. You may want to check the
contents of the alert and test logs (accessible through the service menu, Section 4.2) for
related diagnostic codes. These procedures are sequenced to correct the most probable
malfunction or to present the most efficient corrective action first. The proposed fixes
listed, however, may not always correct the particular problem.
NOTE:
Use the service menu
Sensor data
function (Section 4.2.1) to help confirm the failure of
suspect components.
3.
If necessary, clear the message or reset the alarm by pressing the alarm reset key (see
Table 7-2). Unless otherwise indicated, alarms are reset automatically when the
triggering condition is eliminated. For specifics about how alarm silencing and alarm
resetting works, see the
700 Series Ventilator System Operator’s Manual
.
NOTE:
A temperature-related technical alert may be the first sign of a hardware failure. It may
signal a more serious condition that will cause the ventilator to be reset.
Table 7-2: Alarm messages
When you see this
message:
It means...
Do this...
ABNORMAL RESTART
(no diagnostic code
logged)
High-priority alarm.
The ventilator was reset, typically due to a
ventilator check detecting an error
condition. If the ventilator detects three
such conditions in 24 operating hours, a
ventilator inoperative condition is
declared.
Alarm does not autoreset; you must press
alarm reset key.
Review alert and test logs to determine
cause of reset. Service as necessary.
NOTE:
If the ventilator was reset under
software control, a diagnostic code
will be logged.
AIR INTAKE ABSENT
(diagnostic code 6037)
High-priority alarm. Technical alert.
Air intake filter switch open.
Alarm does not autoreset; you must press
alarm reset key.
1. Verify that air intake filter is installed
and that it engages air intake filter
switch.
2. Check secureness of air intake filter
switch/ventilator head harness
connection.
3. Replace air intake filter.
4. Replace air intake filter switch.
5. Replace pressure solenoid PCB.
AIR INTAKE BLOCKED
(diagnostic code 6021)
High-priority alarm. Technical alert.
Ventilator has detected above-normal
resistance at air intake filter during POST
after power switched on.
Alarm does not autoreset; you must press
alarm reset key.
1. Check patient.
2. Check for visible occlusions (for
example, a curtain, clothing, or
furniture blocking air intake).
3. Replace air intake filter.
Summary of Contents for Puritan Bennett 700 Series
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