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Diagnostic codes
Puritan Bennett™ 700 Series Ventilator System Service Manual
10070389 Rev. A
6-37
11132
SST/EST
Software or motor/encoder
error
1. See Section 6.2.
2. If piston/cylinder was recently replaced,
make sure calibration constants were
correctly input.
3. Check mesh of pinion gear with rack.
Remesh as necessary.
4. Replace motor/encoder.
5. Replace controller PCB.
6. Replace BBU PCB.
7. Replace BBU PCB/ventilator head
harness.
8. Replace optoswitches.
11133
SST/EST
Software or motor/encoder
error
1. See Section 6.2.
2. If piston/cylinder was recently replaced,
make sure calibration constants were
correctly input.
3. Check mesh of pinion gear with rack.
Remesh as necessary.
4. Replace motor/encoder.
5. Replace controller PCB.
6. Replace BBU PCB.
7. Replace BBU PCB/ventilator head
harness.
8. Check mesh of pinion gear with rack.
Remesh as necessary.
9. Replace optoswitches.
11134
SST/EST
Software or motor/encoder
error
1. See Section 6.2.
2. If piston/cylinder was recently replaced,
make sure calibration constants were
correctly input.
3. Check mesh of pinion gear with rack.
Remesh as necessary.
4. Replace motor/encoder.
5. Replace controller PCB.
6. Replace BBU PCB.
7. Replace BBU PCB/ventilator head
harness.
8. Check mesh of pinion gear with rack.
Remesh as necessary.
9. Replace optoswitches.
11135-
11143
SST/EST
Software error
11144
SST/EST
EST failed, and a VENT INOP
condition was declared.
See previous diagnostic codes in log for
corrective actions. Repair ventilator and
rerun EST.
11145
SST/EST
Software error
11146
SST/EST
Software error
11147
SST/EST
SST failed, and a VENT INOP
condition was declared.
See previous diagnostic codes in log for
corrective actions. Repair ventilator and
rerun EST.
Table 6-1: Diagnostic codes (continued)
Code
Software
Possible cause
Corrective action
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