ZOLL AEV Operator's Manual page 89

1030 Gas Intake Failure
Alarm occurs when the Fresh Gas/Emergency Air Inlet is blocked so that the compressor is not able to
deliver flow sufficient for the current settings and high pressure O
user should clear the blockage and restart the ventilator. A false alarm can be triggered in very high vibration
environments.
Mitigation/Info: Manually Ventilate Patient, Clear Blocked Intake, Connect 55 psig/380 kPa O2, Restart Venti-
1041 High O2 Supply Failure
Alarm triggers when the O
result in a catastrophic failure, harm to the patient and/or damage to the device. While the patient is manually
ventilated the user or assistant should seek to reduce the O
changing the regulator which is not functioning as required. If the pressure cannot be reduced and a low flow
device like a flow meter is available the user can provide supplemental O
voir. To clear the alarm the device should be turned off and then restarted with supply pressure in the appro-
priate range (40 to 87 psig, 276 to 600 kPa) or without the high pressure O
1051
Self Check Failure
Alarm triggers when the autocal procedure is not able to zero the airway pressure transducer to ambient
pressure. When this occurs, manually ventilate the patient, replace the ventilator replaced and contact the
service center for additional information. Note: a false alarm can be triggered during operation in very high
vibration environments when the device is not mounted correctly. If this could be the cause, restart the venti-
lator and continue operation if no alarms are triggered.
Mitigation/Info: Pneumatic Sensor: Autocal, Manually Ventilate Patient, **Contact Service Center**
1052
Self Check Failure
Communication between the airway pressure sensor and SPM is lost. When this happens, manually ven-
tilate the patient, replace the ventilator and contact the service center for additional information. Mitiga-
tion/Info: Pneumatic Sensor: Airway Pressure, Manually Ventilate Patient, **Contact Service Center**
1060
Exhalation System Failure
Alarm occurs when the PIP fails to return to the baseline pressure for 3 consecutive breaths, indicating that
the exhalation control valve has failed. When triggered, the device stops ventilating and attempts to dis-
charge the pressure in the breathing circuit to atmosphere. This failure may be caused by a significant block-
age of the exhalation valve or an occlusion/kink in the exhalation valve tube. If possible, the user should
replace the breathing circuit and restart the ventilator. If this does not resolve the failure, replace the ventilator
and contact the service center for additional information.
Mitigation/Info: Patient Can Not Exhale, Manually Ventilate Patient, Check for Kinked Hose/Tube, Replace
1061
Exhalation System Failure
The airway pressure, PIP, is >40 cm H
seconds, or when the PIP is >75 cm H
and attempts to discharge the pressure in the breathing circuit to atmosphere. This failure may be caused by
a significant blockage of the exhalation valve or an occlusion/kink in the exhalation valve tube. If possible,
the user should replace the breathing circuit and restart the ventilator. If this does not resolve the problem,
replace the ventilator and contact the service center for additional information.
Mitigation/Info: Patient Can Not Exhale, Manually Ventilate Patient, Check for Kinked Hose/Tube, Replace
1172
Self Check Failure
Alarm occurs when the 5 volt power bus fails to provide the required voltage. If this failure occurs, the user
should manually ventilate the patient, replace the ventilator and contact the service center for additional infor-
mation.
Mitigation/Info: Pneumatic Sensor: Autocal, Manually Ventilate Patient, **Contact Service Center**
906-0731-01-05 Rev. C
supply pressure is >87 psig (600 kPa). Pressures above 87 psig (600 kPa) can
2
O, the PIP High Limit (when PIP High Limit is < 35 cm H
2
O for > 1.5 seconds. When this happens, the device stops ventilating
2
ZOLL Ventilator Operator's Guide
is not available to support ventilation. The
2
supply pressure. Sometimes this requires
2
via the optional low flow O
2
source connected.
2
reser-
2
O) for > 5
2
5-9