Breathing system problems
.
Symptom Problem Solution
Gas scavenging flow is too low
or too high.
Scavenging extract flow problem. Use a different scavenging extraction
system. Verify flow is within specification.
Filter blockage. Active systems have
a flow indicator.
Replace the filter. Refer to “Remove the
AGSS receiver filter” in the “Advanced
Breathing System Cleaning and
Sterilization” User’s Reference manual.
The bellows fills when the Bag/
Vent switch is set to Bag or the
bag fills when the switch is set
to Vent.
Leak through Bag/Vent switch. Contact an authorized service
representative to repair the system.
The ventilator does not read the
position of the Bag/Vent switch.
Ventilator or absorber malfunction. Ventilate manually. Contact an authorized
service representative to repair the
system.
APL valve does not operate
correctly.
APL valve problem. Replace APL valve seal and diaphragm.
Large breathing system leak. Bag hose not connected properly. Make sure the bag hose is connected to
the bag port (below the APL valve).
Absorber canister not installed
correctly.
Reinstall the absorber canister. Make sure
both pins are engaged.
Bellows falls below top of
indicator during the Bellows
assembly test.
Leak in the breathing system. Check, clean, or reposition the pressure
relief valve. If the problem persists, replace
the pressure relief valve, bellows base, or
bellows assembly.
During PCV-VG mode,
measured tidal volume is less
than set.
Inspiratory pressure is limited to
Pmax minus 5 cmH2O.
Increase the Pmax setting.
7 Alarms and troubleshooting
2067226-001 7-17
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