906-0731-04 Rev. B Sept. 2012
Page 62 of 68
Troubleshooting
A list of alarms by category and service codes follows with a description of each alarm and possible service
kit(s) or action to use to repair the device.
Alarm Category
Ventilator
Alarm Category
Comments
Service Kit / Resolution
CPU Failure
user interface goes blank; audible and red LED
indicators activated; backup vent; Mute/Cancel no
effect
712-0731-14
Compressor
Fault/Failure
no compressor
712-0731-02
restrictions through pneumotach screen or internal
gas path detected by internal sensor; outside normal
operating conditions
712-0731-02
O2 Valve
Fault/Failure
no O2 Valve
712-0731-02
restrictions through pneumotach screen or internal
gas path detected by internal sensor; outside normal
operating conditions
712-0731-02
O2 Supply
Pressure Low
Fault/Failure
inability to detect presence of high-pressure O2;
trigger < 35 psig, clear > 45 psig
712-0731-02
O2 Supply
Pressure High
Fault/Failure
inability to detect presence of high-pressure O2;
trigger > 80 psig, clear < 75 psig
712-0731-02
Fresh Gas Intake
Fault/Failure
obstructions of Fresh Gas / Emergency Air Intake;
internal filter dirty/clogged (pressure drop across
filter monitored)
712-0731-02
Power
Fault/Failure
failure of internal power management system
702-0731-02
Low Battery
Power
remaining operating time
703-0731-01
Missing Battery
not able to detect internal battery
702-0731-02
SPM Change
CPU does not recognize SPM; indicative of complete
unit not properly calibrated after new SPM installed
Recalibrate using RCS
Calibration
Fault/Failure
associated with internal sensors monitoring and
controlling breath delivery
712-0731-02
Exhalation System
Fault/Failure
associated with control of exhalation valve and
airway pressure; triggers (airway pressure): > 40, 75
cmH2O
712-0731-02
Airway Pressure
High
trigger (factory default) > 35 cmH2O
712-0731-02