Performance verification
5-20
10070389 Rev. A
Puritan Bennett™ 700 Series Ventilator System Service Manual
19.
High pressure alarm test failed
a.
Verify ventilator settings are correct.
b.
Verify all tubing connections are secure, and check tubing and test lung for leaks.
c.
Verify tubing between exhalation assembly, autozero solenoid, and pressure
transducer is securely connected.
d.
Replace pressure solenoid PCB.
e.
Replace controller PCB.
20.
Safety valve test failed
a.
Verify safety valve/ventilator head harness connection is secure.
b.
Check safety valve resistance (10.5 to 14
Ω
). Replace safety valve, as required.
c.
Replace safety valve.
d.
Replace pressure solenoid PCB.
21. Back-up alarm test failed
a.
Verify connections between back-up alarm and piezo alarm.
b.
Replace back-up alarm PCB.
c.
Replace back-up alarm.
Summary of Contents for Puritan Bennett 700 Series
Page 1: ...Service Manual Puritan Bennett 700 Series Ventilator Systems TM...
Page 439: ......
