Alarm messages
Puritan Bennett™ 700 Series Ventilator System Service Manual
10070389 Rev. A
7-5
CONTACT SERVICE
(diagnostic codes 6043-
6046)
High-priority alarm. Technical alert.
BBU signal conflict: signals indicate both
battery and AC power operation.
Alarm does not autoreset.
1. Verify AC power to the ventilator.
2. Verify battery voltage.
3. Check that connections between the
BBU and controller PCBs are secure.
4. Replace BBU PCB.
5. Replace controller PCB.
CONTINUOUS HI PRES
(diagnostic code 6003)
High-priority alarm. Technical alert.
HIGH PRESSURE alarm is active but circuit
pressure has not dropped below HIGH
PRESSURE setting. This points to a failure
to open the exhalation valve.
Alarm does not autoreset. The safety valve
opens (the patient breathes room air,
unassisted by the ventilator).
1. Check patient; provide alternate
ventilation.
2. Make sure EXHAUST port is not
blocked.
3. Replace exhalation solenoid.
4. Replace pressure solenoid PCB.
5. Replace exhalation valve.
DELIV GAS HI TEMP
(diagnostic code 6018)
HIgh-priority alarm. Technical alert.
Inspiration manifold temperature too high.
Autoreset when temperature within range.
1. Make sure room temperature is not too
high.
2. Check wiring from thermistor to
pressure solenoid PCB.
3. Replace inspiration manifold
thermistor.
4. Replace pressure solenoid PCB.
DELIV GAS LOW TEMP
(diagnostic code 6017)
High-priority alarm. Technical alert.
Inspiration manifold temperature too low.
Autoreset when temperature within range.
1. Make sure room temperature is not too
low. Make sure that ventilator has
warmed up and T
del
attained a steady
state.
2. Check wiring from thermistor to
pressure solenoid PCB.
3. Replace inspiration manifold
thermistor.
4. Replace pressure solenoid PCB.
DISCONNECT
(no diagnostic code
logged)
High-priority alarm.
Measured exhaled tidal volume is 15% or
less of delivered tidal volume for 4
consecutive breaths.
Autoreset when exhaled tidal volume is
greater than 15% of delivered tidal volume
for 1 breath.
1. Check patient.
2. Check ventilator breathing circuit
connections.
3. Make sure flow sensor/pressure
transducer tubes are connected.
4. If flow sensor was recently replaced,
make sure calibration constants were
correctly entered.
5. Replace exhalation flow sensor.
6. Replace pressure solenoid PCB.
EXH CCT HI TEMP
(diagnostic code 6012)
High-priority alarm. Technical alert.
Exhalation limb temperature too high. The
ventilator continues to annunciate this
alarm while the condition persists.
Autoreset when temperature within range.
1. Check connections of exhalation heater
and thermistor assemblies.
2. Replace exhalation heater assembly.
3. Replace exhalation thermistor
assembly.
4. Replace pressure solenoid PCB.
NOTE:
Be aware that spirometry may be affected (monitored values may be higher than
actual).
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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