Covidien Puritan Bennett 700 Series, Service Manual

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Diagnostic codes
Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 6-21
7169 POST Ventilator did not switch to AC
after POST. 1. Verify AC is acceptable.
2. Check LEDs on BBU PCB and power
supply to determine presence of
voltages. Replace BBU PCB, power
supply, or power input component, as
required.
7170 POST Atmospheric pressure out of
range 1. Make sure ventilator is operating
within stated environmental
specifications.
2. Replace pressure solenoid PCB.
7171 POST Atmospheric pressure out of
range 1. Make sure ventilator is operating
within stated environmental
specifications.
2. Replace pressure solenoid PCB.
7172 POST Analog signal on UI section of
controller PCB out of range 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
7173 POST Analog signal on UI section of
controller PCB out of range 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
7174 POST Analog signal on BD section of
controller PCB out of range 1. Replace pressure solenoid PCB.
2. Replace controller PCB.
7175 POST Cylinder pressure too low 1. Make sure inspiratory filter is not
blocked.
2. Replace pressure solenoid PCB.
7176 POST Cylinder pressure too high 1. Make sure inspiratory filter is not
blocked.
2. Replace pressure solenoid PCB.
7177 POST Exhalation limb temperature
too low 1. Make sure room temperature is not too
low. Make sure that ventilator has
warmed up and exhaled flow attained
a steady-state temperature.
2. Replace exhalation heater assembly.
3. Replace exhalation thermistor
assembly.
4. Replace pressure solenoid PCB.
7178 POST Exhalation limb temperature
too high 1. Make sure room temperature is not too
high.
2. Replace exhalation heater assembly.
3. Replace exhalation thermistor
assembly.
4. Replace pressure solenoid PCB.
7179 POST Software error See Section 6.2.
7180 POST Software error See Section 6.2.
7181 POST Software error See Section 6.2.
7182 POST Multiplexer failure on pressure
solenoid PCB Replace pressure solenoid PCB.
7183 POST Multiplexer failure on pressure
solenoid PCB Replace pressure solenoid PCB.
Table 6-1: Diagnostic codes (continued)
Code Software Possible cause Corrective action