Alarm messages
Puritan Bennett™ 700 Series Ventilator System Service Manual
10070389 Rev. A
7-3
APNEA
(no diagnostic code
logged)
High-priority alarm.
Patient has not triggered a breath within
apnea interval (can only occur in SPONT
mode).
Autoreset when patient triggers 2
consecutive breaths.
1. Check patient.
2. Consider switching from SPONT mode.
BATTERY FUSE FAILED
(diagnostic code 6020)
High-priority alarm. Technical alert.
Open circuit detected in internal battery
output.
Alarm does not autoreset; you must press
reset key. Once reset, alarm is not
reannunciated.
1. Make sure internal battery was not
removed during operation.
2. Replace internal battery.
BAT NOT CHARGING
(diagnostic code 6006)
High-priority alarm. Technical alert.
Battery voltage has not increased during
past hour.
Alarm does not autoreset; you must press
alarm reset key.
1. Check connections and charge of
batteries.
2. Replace applicable battery.
3. Replace BBU PCB.
CONTACT SERVICE
(diagnostic code 6026)
High-priority alarm. Technical alert.
Flow sensor offset has changed by an
unexpectedly large value.
Alarm does not autoreset.
1. Verify that tubes between flow sensor
and pressure transducer are securely
connected.
2. Make sure EXHAUST port is not
blocked.
3. Check flow sensor calibration
constants.
4. Replace flow sensor.
5. Replace pressure solenoid PCB.
CONTACT SERVICE
(diagnostic code 6027)
High-priority alarm. Technical alert.
Safety valve should be closed, but
measured current is too low.
Alarm does not autoreset.
1. Check that safety valve/ventilator head
harness connection is secure.
2. Check safety valve resistance (10.5 to
14
Ω
).
3. Replace safety valve.
4. Replace pressure solenoid PCB.
CONTACT SERVICE
(diagnostic code 6028)
High-priority alarm. Technical alert.
Safety valve should be closed, but
measured current is too high.
Alarm does not autoreset.
1. Check that safety valve/ventilator head
harness connection is secure.
2. Check safety valve resistance (10.5 to
14
Ω
).
3. Replace safety valve.
4. Replace pressure solenoid PCB.
CONTACT SERVICE
(diagnostic code 6029)
High-priority alarm. Technical alert.
No current to ALARM light when it should
be on.
Autoreset on subsequent ALARM light
state change, after triggering condition
disappears.
1. Replace UI display PCB.
2. Replace controller PCB.
Table 7-2: Alarm messages (continued)
When you see this
message:
It means...
Do this...
Summary of Contents for Puritan Bennett 700 Series
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