Philips EverFlo Q Service And Technical Reference Manual page 38

SYMPTOM
•
Inaccurate oxygen
flow
•
Loss of power
•
Low Pressure
P
ROBLEM
Not running or lockup
Noisy at the compressor
Low Flow if the purity is still good
Valve not cycling
Pressure fluctuating < 10psi
Flow meter fluctuating, either observed or
device returned with customer complaint
Customer complaint of device alarming, but
the measured O is within spec
2
Low O with the perf-plates at or above 1.3
2
inches
Low O with new valve installed and
2
compressor flow within spec
Either the perf-plate position measured >1.3
inches
Peak pressure > 28 psi
Estimated flow > 5.5 LPM with the flow
meter set to = 5 LPM
EverFlo UltraFill compatible models have
cuts or pin holes in tubing near the sieve
canister
Page 38
CAUSE
Flow Meter failure
Compressor thermal
switch failure
•
Compressor
temperature allowed
to exceed
65 +/- 5 degrees C
127 +/- 5 degrees F
P
LO TM
E F S
VER
VERIFICATION
•
Verify the Flow Meter
can be adjusted
properly
•
Verify that air flow
around concentrator
is not blocked
•
Verify that all filters
are clan
•
Verify that the
thermal switch is
closing after cooling
C
OSSIBLE AUSE
Compressor
Compressor
Compressor
Valve
Valve
Valve
Valve
Valve
Canister
Canister
Canister
System checks
System checks
& T I
ERVICE ECHNICAL NFORMATION
CORRECTIVE
ACTION
•
Replace the Flow
Meter
•
Reposition the
concentrator to an
open area
•
Replace all dirty
filters
•
Replace the
Compressor
W Y S
HAT OU HOULD
Replace the compressor
Replace the compressor
Replace the compressor
Replace the valve
Replace the valve
Replace the valve
Replace the valve
Replace the valve
Replace the canister
Replace the canister and valve
Replace the canister and valve
Inspect and fix leaks
Inspect and fix leaks
1039055, VER. 06
D
O