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.
Pressure sensor problem. Contact an authorized service
representative to repair the pressure
sensor on anesthesia control board.
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 the canister is placed correctly
on the canister lifter base.
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
2076152-001 7-17
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