AirSep MN134-1 B - Manual (Page 28)

MN134-1 rev B
02/14
23
Problem Probable Cause Solution
Compressor runs with intermittent
high pressure alarm and low
oxygen concentration.
Restriction in exhaust muffler.
Faulty solenoid valve.
Faulty circuit board.
Contaminated sieve beds.
Replace or clean muffler.
Repair or replace solenoid valve.
Replace circuit board.
Replace sieve beds.
Compressor relief valve releases
(popping sound)
Faulty electrical connection at waste
valve.
Faulty solenoid valve coil. (Refer to
section 5.4.2 for acceptable ohm
ratings)
Faulty relief valve.
Faulty circuit board.
Contaminated sieve beds.
Repair electrical connection.
Replace valve coil. (Use of an
ohmmeter can be a helpful to easily
determine a faulty coil).
Replace relief valve or compressor.
Replace circuit board.
Replace sieve beds.
Constant alarm with I/0 power
switch in “I” position. Circuit
breaker repeatedly trips. Faulty electrical connection.
Faulty capacitor.
Faulty circuit breaker.
Faulty circuit board.
Faulty compressor.
Repair electrical connection.
Replace capacitor.
Replace circuit breaker.
Replace circuit board.
Replace compressor.
Alarm does not sound.
Incorrectly installed battery.
Faulty electrical connection.
Dead battery.
Faulty buzzer.
Faulty I /0 power switch.
Faulty circuit board.
Reinstall battery with correct
polarity.
Repair electrical connection.
Replace battery.
Replace buzzer.
Replace I /0 power switch.
Replace circuit board.
Flowmeter fluctuates. Leak.
Reduced air intake (suction).
Improperly set or faulty product
regulator.
Faulty flowmeter.
Worn compressor.
Faulty circuit board.
Faulty solenoid valve.
Leak test and repair leak.
Check compressor intake path for
obstruction. Clean/remove
obstruction.
Check regulator setting. Repair or
replace regulator.
Replace flowmeter.
Replace compressor.
Replace circuit board.
Repair or replace solenoid valve.