Covidien Puritan Bennett 700 Series, Service Manual

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Diagnostic codes
Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 6-11
7007 POST Motor/piston failure 1. If piston/cylinder was recently replaced,
make sure calibration constants were
correctly input.
2. Replace motor/encoder.
3. Replace controller PCB.
4. Replace BBU PCB.
5. Replace BBU PCB/ventilator head
harness.
6. Check mesh of pinion gear with rack.
Remesh as necessary.
7. Replace optoswitches.
7008 POST Motor/piston failure 1. If piston/cylinder was recently replaced,
make sure calibration constants were
correctly input.
2. Replace motor/encoder.
3. Replace controller PCB.
4. Replace BBU PCB.
5. Replace BBU PCB/ventilator head
harness.
6. Check mesh of pinion gear with rack.
Remesh as necessary.
7. Replace optoswitches.
7009 POST VENT INOP condition 1. See previous diagnostic codes in log for
corrective actions.
2. Run EST.
3. Replace controller PCB.
7010 POST Safety valve failure 1. Check that safety valve/ventilator head
harness connection is secure.
2. Check safety valve resistance (10.5 to
14
Ω
).
3. Replace safety valve.
4. Replace pressure solenoid PCB.
7011 POST ALARM light failure 1. Replace UI display PCB.
2. Replace controller PCB.
7012 POST ALARM light failure 1. Replace UI display PCB.
2. Replace controller PCB.
7013 POST Main alarm speaker failure 1. Check speaker resistance (6 to 8
Ω
).
2. Check main ventilator head harness
continuity. Replace harness, as
required.
3. Replace speaker.
4. Replace pressure solenoid PCB.
7014 POST Not Ventilating signal used in
UI/BD communications is not in
expected state. 1. Power off ventilator. Wait 15 seconds.
Power on ventilator.
2. See Section 6.2.
3. Replace controller PCB.
7015 POST Bus monitor error Replace controller PCB.
7016 POST UI microcontroller failure Replace controller PCB.
7017 POST Software error See Section 6.2.
Table 6-1: Diagnostic codes (continued)
Code Software Possible cause Corrective action