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Diagnostic codes
6-24
10070389 Rev. A
Puritan Bennett™ 700 Series Ventilator System Service Manual
7238
POST
Loopback test performed on
controller PCB during POST
failed.
Replace controller PCB.
7239
POST
The voltage used to identify
the 740/760 user interface is
out of range.
1. Check all cable connections between
the user interface and controller PCB.
2. Replace the UI display PCB.
3. Replace the controller PCB.
7240-7246
POST
Software error
8000-8xxx
Library functions
Software error
9000
Ongoing hardware
checks
An out-of-bounds temperature
measurement caused the reset
Determine which temperature was out of
bounds using
Sensor data
function and
referring to previous diagnostic code in
log.
9001
Ongoing hardware
checks
An out-of-bounds controller
PCB voltage measurement
caused the reset.
Replace controller PCB.
9002
Ongoing hardware
checks
An out-of-bounds pressure
solenoid PCB voltage caused
the reset.
1. Determine which voltage is out of
bounds through pressure solenoid PCB
test connector.
2. Replace pressure solenoid PCB.
9003
Ongoing hardware
checks
An out-of-bounds BBU PCB
voltage caused the reset.
Replace BBU PCB.
9004
Ongoing hardware
checks
Current to PEEP pump too low
1. Replace PEEP pump.
2. Replace pressure solenoid PCB.
9005
Ongoing hardware
checks
Current to PEEP pump too high
1. Replace PEEP pump.
2. Replace pressure solenoid PCB.
9006
Ongoing hardware
checks
PEEP pump current problem
1. Replace PEEP pump.
2. Replace pressure solenoid PCB.
9007
Ongoing hardware
checks
PEEP pump current problem
1. Replace PEEP pump.
2. Replace pressure solenoid PCB.
9008
Ongoing hardware
checks
Motor temperature too high
1. Clean or replace main fan filter.
2. Check for proper operation of main
fan.
3. Replace motor/encoder.
9009
Ongoing hardware
checks
VENT INOP signal is active
1. See previous diagnostic codes in log for
corrective actions.
2. Run EST.
3. Replace controller PCB.
9010
Ongoing hardware
checks
Not Ventilating signal used in
UI/BD communications is not in
expected state.
1. See Section 6.2.
2. Replace controller PCB.
9011
Ongoing hardware
checks
Battery current too low while
charging
1. Replace applicable battery.
2. Replace BBU PCB.
9012
Ongoing hardware
checks
Battery current too high while
charging
1. Replace applicable battery.
2. Replace BBU 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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