Covidien Puritan Bennett 700 Series, Service Manual

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Diagnostic codes
Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 6-31
9113 Ongoing hardware
checks Real-time clock failure Replace controller PCB.
9114 Ongoing hardware
checks Real-time clock failure Replace controller PCB.
9115-9124 Ongoing hardware
checks Bad NVRAM data or NVRAM 1. See Section 6.2.
2. Restore NVRAM data.
3. Replace NVRAM.
9125 Ongoing hardware
checks Exhalation flow sensor
pressure transducer failure 1. Make sure room temperature is within
specifications. Make sure that
ventilator has warmed up and T
xdcr
attained a steady state.
2. Replace pressure solenoid PCB.
9126 Ongoing hardware
checks Mismatch between BD and UI
microprocessors’ inspiration
pressure readings 1. Verify sampling tubes are connected to
correct pressure solenoid PCB
connectors.
2. Replace pressure solenoid PCB.
3. Replace controller PCB.
9127 Ongoing hardware
checks Mismatch between BD and UI
microprocessors’ exhalation
pressure readings 1. Verify sampling tubes are connected to
correct pressure solenoid PCB
connectors.
2. Replace pressure solenoid PCB.
3. Replace controller PCB.
9128 Ongoing hardware
checks Not Ventilating signal used in
UI/BD communications is not in
expected state. Replace controller PCB.
9129 Ongoing hardware
checks Not Ventilating signal used in
UI/BD communications is not in
expected state. Replace controller PCB.
9130 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.
9131 Ongoing hardware
checks Cylinder pressure reading out
of range 1. Make sure inspiratory filter outlet is not
blocked and air intake filter is not
occluded.
2. Replace pressure solenoid PCB.
9132 Ongoing hardware
checks Flow sensor pressure
transducer reading 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. Verify tubes between flow sensor and
pressure transducer are securely
connected.
3. Make sure EXHAUST port is not
blocked.
4. Replace pressure solenoid PCB.
Table 6-1: Diagnostic codes (continued)
Code Software Possible cause Corrective action