Diagnostic codes
Puritan Bennett™ 700 Series Ventilator System Service Manual
10070389 Rev. A
6-19
7133
POST
Oxygen percentage reading
too low
1. Perform
FIO
2
sensor calib
function,
making sure room temperature is same
as expected room temperature during
use.
2. Replace oxygen sensor.
3. Replace pressure solenoid PCB.
7134
POST
Oxygen percentage reading
too high
1. Perform
FIO
2
sensor calib
function,
making sure room temperature is same
as expected room temperature during
use.
2. Replace oxygen sensor.
3. Replace pressure solenoid PCB.
7135
POST
Current to PEEP pump too low
1. Replace PEEP pump.
2. Replace pressure solenoid PCB.
7136
POST
Current to PEEP pump too high
1. Replace PEEP pump.
2. Replace pressure solenoid PCB.
7137
POST
Low oxygen supply pressure
1. Make sure oxygen source pressure is at
least 40 psi.
2. Check for proper installation of oxygen
regulator pressure transducer and
connection of sensor to pressure
solenoid PCB.
3. Calibrate oxygen regulator pressure
transducer.
4. Replace oxygen regulator pressure
transducer.
5. Replace pressure solenoid PCB.
6. Replace oxygen regulator assembly.
7138
POST
A VENT INOP condition was
declared, because three soft
resets occurred in a 24-hour
operational period.
1. See previous diagnostic codes in log for
corrective actions.
2. Run EST.
3. Replace controller PCB.
7139
POST
Software error
7140
POST
Software error
7141
POST
POST detected that a key was
pressed when POST was run
due to a soft reset. No keys
should be pressed when POST
is run due to a soft reset.
1. Release key.
2. Verify keyboard cable is securely
connected to UI display PCB.
3. Replace keyboard.
4. Replace controller PCB.
5. Replace UI display PCB.
7142
POST
Software error
7143
POST
Software error
7144
POST
A key was held down.
1. Release key.
2. Verify keyboard cable is securely
connected to UI display PCB.
3. Replace keyboard.
4. Replace controller PCB.
5. Replace UI display 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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