Respironics ESPRIT Service Manual page 78

Chapter 6
Diagnostic Codes
6-12
Diagnostic
Code Code Description
3127 Heated filter back pressure out of
range (<5 cmH
Heated filter test (test 12): at an air
flow reading of 100 LPM through
the patient circuit, the system
calculates the difference between
inspiratory pressure transducer
(PT3) measurements before and
after disconnecting the exhalation
limb from exhalation filter. This code
indicates that the difference is <5
cmH O or >15 cmH
2
3128 Circuit compliance out of range.
Patient circuit test (test 11): circuit
compliance is calculated by
measuring the time required to
achieve 50 cmH
code indicates that calculated
compliance is <0.50 ml/cmH
>9.0 ml/cmH
3129 Pressure leak out of range.
Patient circuit test (test 11): the
patient circuit leak rate (based on
calculated compliance value) is
determined by measuring the
decrease in circuit pressure from 50
cmH O after one second. This code
2
indicates that the pressure leak was
out of range, based on the
calculated compliance value.
3130 Safety valve cannot open.
Safety valve test (test 2): the
exhalation valve is opened then
closed to vent circuit pressure. The
safety valve solenoid (SOL2) is then
deenergized to open the safety valve,
and a 10 LPM air flow starts while
monitoring the inspiratory pressure
transducer (PT3). This code
indicates that PT3 is measuring >5
cmH O.
2
Esprit® Ventilator Service Manual © Respironics, Inc.
1. Replace the exhalation bacteria filter.
O or >15 cmH O).
2. Check of occlusions in the patient
2 2
circuit.
3. Check CV4 (Chapter 5).
O.
2
1. Remove inspiratory bacteria filter and
external oxygen sensor and try
another patient circuit.
2. Replace sensor PCB.
3. Replace analog PCB.
O at 5 LPM. This
2
O or
2
O.
2
1. Remove inspiratory bacteria filter and
external oxygen sensor and try
another patient circuit.
2. Rerun leak test while blocking
exhalation flow sensor outlet. If leak
stops, replace the exhalation valve.
3. Ensure that exhalation filter door is
securely closed.
4. Replace sensor PCB.
5. Replace analog PCB.
1. Check safety valve and safety valve
solenoid (Chapter 5).
2. Check for blocked vent tube between
the inspiratory manifold and the back
of the ventilator.
3. Replace three-station solenoid
assembly.
4. Install safety valve kit.
5. Replace inspiratory manifold
assembly.
Recommended Repair
REF 580-1000-02 G