Philips EverFlo Q - Page 37

Page 37 E
VERFLO
TM
SERVICE & TECHNICAL INFORMATION 1039055, VER. 06
SYMPTOM CAUSE VERIFICATION
CORRECTIVE
ACTION
• Pressure relief
valve activated
• Red LED (constant)
• Low pressure
Cycle failure
• Verify Valve Solenoid
Assembly operation
• Verify Valve Solenoid
assembly wire
harness connection
with Main PCA
• Verify voltage from
Main PCA to Valve
Solenoid Assembly
• Replace Valve
Solenoid Assembly
• Reconnect the Valve
Solenoid wiring
harness to the Main
PCA
• Replace the Main PCA
• Inaccurate oxygen
readings
Leaks
Main PCA failure
Compressor failure
• 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.
• Reconnect the
hoses
• Reconnect the
tubing
• Replace Main PCA
• Replace the
Compressor