Covidien Puritan Bennett 700 Series, Service Manual

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Diagnostic codes
Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 6-29
9085 Ongoing hardware
checks Failure to autozero cylinder
pressure transducer 1. Use Sensor data function to check P
cyl
reading.
2. Check that autozero solenoid/main
ventilator head harness connection is
secure.
3. Replace pressure solenoid PCB.
9086 Ongoing hardware
checks Inspiration pressure out of
bounds 1. Use Sensor data function to check P
i
reading.
2. Replace pressure solenoid PCB.
9087 Ongoing hardware
checks Exhalation pressure out of
bounds 1. Use Sensor data function to check P
e
reading.
2. Replace pressure solenoid PCB.
9088 Ongoing hardware
checks Exhaled flow out of bounds 1. Make sure room temperature is within
specifications. Make sure that
ventilator has warmed up and exhaled
flow attained a steady-state
temperature.
2. Replace flow sensor.
3. Replace pressure solenoid PCB.
9089 Ongoing hardware
checks Oxygen regulator pressure
transducer reading out of
range 1. Make sure oxygen source pressure is at
least 40 psi.
2. Calibrate oxygen regulator pressure
transducer.
3. Check for proper installation of oxygen
regulator pressure transducer and
connection of sensor to pressure
solenoid PCB.
4. Replace oxygen regulator pressure
transducer.
5. Replace oxygen regulator assembly.
6. Replace pressure solenoid PCB.
9090 Ongoing hardware
checks Motor controller chipset
failure Replace controller PCB.
9091 Ongoing hardware
checks Motor controller chipset
failure Replace controller PCB.
9092 Ongoing hardware
checks Piston motion error 1. Perform gear mesh procedure, as
required.
2. If piston scrapes, replace piston/cylinder
assembly.
3. Replace motor/encoder.
4. Replace BBU PCB.
5. Replace controller PCB.
9093 Ongoing hardware
checks Unexpected interrupt to motor
controller chipset Replace controller PCB.
9094 Ongoing hardware
checks Unexpected interrupt to motor
controller chipset Replace controller PCB.
9095 Ongoing hardware
checks Motor fault reported to motor
controller chipset 1. Replace piston/cylinder assembly.
2. Replace BBU PCB.
3. Replace motor/encoder.
4. Replace controller PCB.
Table 6-1: Diagnostic codes (continued)
Code Software Possible cause Corrective action