AirSep Centrox Instruction Manual page 51

Problem
Oxygen concentrator cycles
continuously.
AUTO/MANUAL switch is
set to AUTO position. Blue
light is ON. Oxygen Receiver
Pressure gauge registers
less than 50 psig (345 kPa).
Oxygen purity is acceptable.
Oxygen concentrator
cycles continuously. AUTO/
MANUAL switch is set to
AUTO position. Blue light is
on.
Oxygen Receiver Pressure
gauge registers 63 psig (435
kPa) or higher.
Centrox Instruction Manual
Probable Cause
Compressor does not build
up adequate pressure.
Compressor intake filter
plugged.
Feed air dump valve leaks.
Compressor relief valve
leaks.
Air leak in system.
Oxygen usage is greater
than capacity of oxygen
concentrator.
Oxygen leak in system.
Pressure switch improperly
adjusted.
Defective wire to AUTO/
MANUAL switch.
Defective AUTO/MANUAL
switch.
Defective wire to pressure
switch.
Defective pressure switch
Defective circuit board.
AirSep Corporation
Solution
Replace compressor.
Clean or replace compressor
intake filter.
Check all wires and
connections (Refer to the
wiring diagrams in Appendix
A). If problem continues,
replace the valve.
Replace relief valve
Check oxygen concentrator.
Repair as necessary.
Check oxygen usage. If
usage exceeds system
capacity (32 SCF/hr [15
LPM]), reduce usage.
Check oxygen concentrator
and oxygen distribution
system for leaks. Repair as
necessary.
Readjust pressure switch.
(Refer to Section 8.1.1).
Repair or replace wire to
AUTO/MANUAL switch.
Replace AUTO/MANUAL
switch.
Repair or replace wire to
pressure switch.
Replace pressure switch.
Replace circuit board. (Refer
to Section 8.2.2).
51