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Diagnostic codes
Puritan Bennett™ 700 Series Ventilator System Service Manual
10070389 Rev. A
6-17
7116
POST
Ventilator internal
temperature too high
1. Make sure room temperature is not too
high.
2. Make sure vents in unit are not
blocked.
3. Make sure main fan is operating
properly. Clean or replace fan filter, as
necessary.
4. Replace pressure solenoid PCB.
7117
POST
Temperature at exhalation
flow sensor pressure
transducer too low
1. Make sure room temperature is not too
low. Make sure that ventilator has
warmed up and T
xdcr
attained a steady
state.
2. Replace pressure solenoid PCB.
7118
POST
Temperature at exhalation
flow sensor pressure
transducer too high
1. Make sure room temperature is not too
high.
2. Replace pressure solenoid PCB.
7119
POST
Exhalation limb temperature
too low
1. Make sure room temperature is not too
low. Make sure that ventilator has
warmed up and exhaled gas attained a
steady-state temperature.
2. Replace exhalation heater assembly.
3. Replace exhalation thermistor
assembly.
4. Replace pressure solenoid PCB.
7120
POST
Exhalation limb temperature
too high
1. Make sure room temperature is not too
high.
2. Replace exhalation heater assembly.
3. Replace exhalation thermistor
assembly.
4. Replace pressure solenoid PCB.
7121
POST
Inspiration manifold
temperature too low
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 that thermistor/main ventilator
head harness connection is secure.
3. Replace inspiration manifold
thermistor.
4. Replace pressure solenoid PCB.
7122
POST
Inspiration manifold
temperature too high
1. Make sure room temperature is not too
high.
2. Check that thermistor/main ventilator
head harness connection is secure.
3. Replace inspiration manifold
thermistor.
4. Replace pressure solenoid PCB.
7123
POST
Inspiration pressure too low
1. Verify tubing between inspiration
manifold and pressure transducer is
securely connected.
2. Replace pressure solenoid PCB.
Table 6-1: Diagnostic codes (continued)
Code
Software
Possible cause
Corrective action
Summary of Contents for Puritan Bennett 700 Series
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