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Symptom Possible Cause Remedy
Cycle Fail Alarm -
audible & visual.
Incorrect PIP alarm setting.
Proximal Airway line
disconnected.
Proximal Airway blocked with
water.
Solenoid failure.
Readjuct PIP alarm to INSp
pressure. Check sent vent
pressure.
Reconnect tubing.
Clear blockage.
Consult Service Manual or SLE
trained Engineer.
System Fail -
audible & visual.
Component failure As above.
CPAP
Unable to set
desired pressure.
Faulty patient circuit.
Incorrectly assembled patient
circuit.
Exhalation block - located
incorrectly.
Regulator cap is in LOCKED
position.
Seized regulator control.
CPAP nozzle blocked.
Replace circuit.
Reassemble as per drawing
supplied with circuit.
Relocate the block assembly.
Pull regulator cap out to release
from locked status.
Consult SLE trained Engineer.
Consult SLE trained Engineer.