Covidien Puritan Bennett 700 Series, Service Manual

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Diagnostic codes
Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 6-33
9146 Ongoing hardware
checks +15V from pressure solenoid
PCB too low 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
9147 Ongoing hardware
checks +15V from pressure solenoid
PCB too high 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
9148 Ongoing hardware
checks -15V from pressure solenoid
PCB too low 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
9149 Ongoing hardware
checks -15V from pressure solenoid
PCB too high 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
9150 Ongoing hardware
checks +1.2 V reference from pressure
solenoid PCB too low 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
9151 Ongoing hardware
checks +1.2 V reference from pressure
solenoid PCB too high 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
9152 Ongoing hardware
checks +15V from BBU PCB too low 1. Replace BBU PCB.
2. Replace controller PCB.
9153 Ongoing hardware
checks +15V from BBU PCB too high 1. Replace BBU PCB.
2. Replace controller PCB.
9154 Ongoing hardware
checks +5V from BBU PCB too low 1. Replace BBU PCB.
2. Replace controller PCB.
9155 Ongoing hardware
checks +5V from BBU PCB too high 1. Replace BBU PCB.
2. Replace controller PCB.
9156 Ongoing hardware
checks +5V to breath delivery motor
controller circuits too low 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
9157 Ongoing hardware
checks +5V to breath delivery motor
controller circuits too high 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
9158 Ongoing hardware
checks +2.5V reference to breath
delivery motor controller
circuits too low Replace controller PCB.
9159 Ongoing hardware
checks +2.5V reference to breath
delivery motor controller
circuits too high Replace controller PCB.
9160 Ongoing hardware
checks Oxygen regulator pressure
transducer reading too low 1. Calibrate oxygen regulator pressure
transducer.
2. Replace oxygen regulator pressure
transducer.
3. Replace oxygen regulator assembly.
4. Replace pressure solenoid PCB.
9161 Ongoing hardware
checks Oxygen regulator pressure
transducer reading too high 1. Verify oxygen supply pressure is not too
high.
2. Calibrate oxygen regulator pressure
transducer.
3. Replace oxygen regulator pressure
transducer.
4. Replace oxygen regulator assembly.
5. Replace pressure solenoid PCB.
Table 6-1: Diagnostic codes (continued)
Code Software Possible cause Corrective action