Chapter 8
8-44
Esprit® Ventilator Service Manual © Respironics, Inc.
REF 580-1000-02 G
Performance Verification
Test 5: Pressure Accuracy
Test 6: PEEP System
Test 7: Breath Rate
Symptom
Recommended Repair
Inhalation/exhalation
pressure readings out of
range at 100 cmH
2
O
1. Check for leaks at circuit connections, test lung, filters, etc.
2. Check for kinked or cut tubing from inhalation module to SOL4,
and from SOL4 to sensor PCB.
3. Check for kinked or cut tubing from exhalation pressure tap to
SOL3, and from SOL3 to sensor PCB.
4. Check for leaks at the oxygen sensor/oxygen valve connection.
5. Replace the sensor PCB.
6. Replace the 3-station solenoid.
Symptom
Recommended Repair
Ventilator PEEP below
acceptable value
1. Check for leaks at circuit connections, test lung, filters, etc.
2. Check for kinked or cut tubing from inhalation module to SOL4,
and from SOL4 to sensor PCB.
3. Check for kinked or cut tubing from exhalation pressure tap to
SOL3, and from SOL3 to sensor PCB.
4. Replace sensor PCB.
5. Replace exhalation valve assembly.
Ventilator PEEP above
acceptable value
Replace sensor PCB.
Ventilator breath rate
outside acceptable
value
1. Check for leaks at circuit connections, test lung, filters, etc., and
bypass oxygen sensor.
2. Replace patient circuit (including exhalation bacteria filter).
Symptom
Recommended Repair
Ventilator breath rate
outside acceptable
value
1. Replace CPU PCB.
2. Replace main PCB.
Technician’s Signature
Date
