Avea Troubleshooting - CareFusion AVEA Operating Instructions Manual

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AVEA Troubleshooting

Remove ventilator from patient with any potential problem
Symptom
Will not pass EST - Fails Leak
Will not pass EST - Fails O
calibration
No reading from proximal flow sensor Sensor / Patient size incompatible See the operators manual for
Vti > Vte when operating without
proximal flow sensors
Vte > Vti
Chapter 2: Unpacking and Setup
Problem
Circuit wye not fully occluded
Leak in patient circuit
Filter cartridge not properly seated Remove exhalation cartridge and
Leak in exhalation corner
Connector on O
2
connected properly
Inlet gas pressure too low
Defective O
Sensor not connected
Loose external connection
Defective sensor
Internal fault
Normal Condition when operating
on test lung.
Normal if readings are within
ventilator accuracy specifications
of +/-10%
Defective expiratory flow sensor
Leak in patient circuit, water
collector or exhalation system
Normal if readings are within
ventilator accuracy specifications
of +/-10%
Defective expiratory flow sensor
Leak in patient circuit, water
collector or exhalation system
Internal fault
sensor not
2
sensor
2
Operator's manual
Solution(s)
Ensure circuit wye is fully occluded
Check for leaks in circuit and reseat
circuit connections to ventilator.
Replace circuit if necessary.
check condition of connections.
Reinstall and recheck. Replace if
necessary
Replace exhalation diaphragm.
Check sensor connection
Verify inlet air and oxygen pressure
above 20psig
Replace O Sensor
2
correct sensor/mode configurations
Ensure sensor properly connected
at both the patient wye and at the
ventilator.
Check external connection
Replace sensor
Call Technical Service
No action required
No action required if within
specification
Clean/replace expiratory flow
sensor
Verify with leak test
No action required if within
specification
Clean/replace expiratory flow
sensor
Verify with leak test
Call Technical Service
L2786 Rev. M