Respironics ESPRIT Service Manual page 80

Chapter 6
Diagnostic Codes
6-14
Diagnostic
Code Code Description
3137 Air flow sensor (FS1) failure.
This code indicates that information
stored on FS1 cannot be read.
3138 Oxygen flow sensor (FS2) failure.
This code indicates that information
stored on FS2 cannot be read.
3139 Exhalation flow sensor (FS3) failure.
This code indicates that information
stored on FS3 cannot be read.
3140 Flow sensors cannot erase table.
This code indicates that flow sensor
calibration tables stored on the CPU
PCB cannot be erased.
3141 Inhalation autozero solenoid cannot
open.
Block patient wye (test 1): patient
circuit pressurized to 50 cmH
then inhalation autozero solenoid
commanded to energize (open), and
inspiration pressure transducer
(PT3) should measure 0 cmH
This code indicates that PT3
measured outside the range from -3
to 3 cmH O.
2
3142 Exhalation autozero solenoid cannot
open.
Block patient wye (test 1): patient
circuit pressurized to 50 cmH
then exhalation autozero solenoid
commanded to energize (open), and
exhalation pressure transducer (PT2)
should measure 0 cmH
indicates that PT2 measured outside
the range from -3 to 3 cmH
Esprit® Ventilator Service Manual © Respironics, Inc.
Recommended Repair
1. Enter diagnostic mode, then turn
ventilator off and on.
2. Replace CPU PCB.
3. Replace air flow sensor.
4. Replace sensor PCB.
5. Replace analog PCB.
6. Replace main PCB.
1. Enter diagnostic mode, then turn
ventilator off and on.
2. Replace CPU PCB.
3. Replace oxygen flow sensor.
4. Replace sensor PCB.
5. Replace analog PCB.
6. Replace main PCB.
1. Enter diagnostic mode, then turn
ventilator off and on.
2. Replace CPU PCB.
3. Replace exhalation flow sensor.
4. Replace sensor PCB.
5. Replace analog PCB.
6. Replace main PCB.
Replace CPU PCB.
1. Check inhalation solenoid (Chapter
5).
2. Replace three-station solenoid
assembly.
O,
3. Replace sensor PCB.
2
4. Replace analog PCB.
O.
2
1. Check inhalation solenoid (Chapter
5).
2. Replace three-station solenoid
assembly.
O,
3. Replace sensor PCB.
2
4. Replace analog PCB.
O. This code
2
O.
2
REF 580-1000-02 G