Covidien Puritan Bennett 700 Series, Service Manual

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Diagnostic codes
6-32 10070389 Rev. A Puritan Bennett™ 700 Series Ventilator System Service Manual
9133 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.
9134 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.
9135 Ongoing hardware
checks Flow sensor pressure
transducer reading too high 1. Make sure room temperature is not too
high.
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.
9138 Ongoing hardware
checks +24V to UI display PCB too low 1. Replace UI display PCB.
2. Replace controller PCB.
9139 Ongoing hardware
checks +24V to UI display PCB too
high 1. Replace UI display PCB.
2. Replace controller PCB.
9140 Ongoing hardware
checks +5V to UI display PCB too low 1. Replace UI display PCB.
2. Replace controller PCB.
9141 Ongoing hardware
checks +5V to UI display PCB too high 1. Replace UI display PCB.
2. Replace controller PCB.
9142 Ongoing hardware
checks Software/UI display PCB
revision mismatch 1. Make sure UI display PCB is for a
700 Series Ventilator System.
2. Replace UI display PCB.
3. Replace controller PCB.
9143 Ongoing hardware
checks Software/UI display PCB
revision mismatch 1. Make sure UI display PCB is for a
700 Series Ventilator System.
2. Replace UI display PCB.
3. Replace controller PCB.
9144 Ongoing hardware
checks +1.2 V reference from pressure
solenoid PCB too low 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
9145 Ongoing hardware
checks +1.2 V reference from pressure
solenoid PCB too high 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
Table 6-1: Diagnostic codes (continued)
Code Software Possible cause Corrective action