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SYMPTOM
•
Pressure relief
valve activated
•
Red LED (constant)
•
Low pressure
•
Inaccurate oxygen
readings
Page 37
CAUSE
Cycle failure
Leaks
Main PCA failure
Compressor failure
LO TM
E
F
S
& T
VER
ERVICE
VERIFICATION
•
Verify Valve Solenoid
Assembly operation
•
Verify Valve Solenoid
assembly wire
harness connection
with Main PCA
•
Verify voltage from
Main PCA to Valve
Solenoid Assembly
•
Verify the hoses are
connected to the OPI
sensor.
•
Verify that there are
no leaks
•
Verify the output with
a calibrated oxygen
analyzer
•
Verify the
Compressor output
range.
I
ECHNICAL
NFORMATION
CORRECTIVE
ACTION
•
Replace Valve
Solenoid Assembly
•
Reconnect the Valve
Solenoid wiring
harness to the Main
PCA
•
Replace the Main PCA
•
Reconnect the
hoses
•
Reconnect the
tubing
•
Replace Main PCA
•
Replace the
Compressor
1039055, VER. 06
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Troubleshooting
