CareFusion AVEA - AVEA Troubleshooting

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