GE 9100c - Page 141

7 Troubleshooting
M1207026 7-9
MVexp high User Alarm
Middle
The minute volume is greater
than the set high limit.
This alarm is suspended for 9
breaths after you change the
ventilator settings.
Check patient for spontaneous
breathing.
Adjust control settings.
MVexp low User Alarm
Middle
Exhaled minute volume less
than low limit alarm setting.
This alarm is suspended for 9
breaths after you change the
ventilator settings.
Check patient condition.
Check tubing connections.
Check alarm settings.
Negative airway
pressure
User Alarm
High
Subatmospheric pressure (<-
10 cm H2O).
Check patient condition,
spontaneous activity?
Increase fresh gas flow. Look
for high flow through gas
scavenging.
If persists, check:
• Paw Zero
• Paw Gain
• CSB
No breathing circuit User Alarm
High
Breath circuit switches do not
detect breathing circuit module
Check the breathing circuit
installation
If persists, check:
• Breathing circuit
installation
microswitch
•CSB
No CO
2
absorption User Alarm
Middle
CO
2
bypass selected User setting.
Close the canister release to
remove CO
2
from exhaled gas.
No drive gas User Alarm
Middle
The ventilator does not detect
supply pressure.
Manually ventilate the patient.
Make sure that the appropriate
gas supplies (O
2
or Air) are
connected and pressurized.
No O
2
pressure User Alarm
High
The O
2
supply has failed. Air flow will continue. Ventilate
manually if necessary.
Connect a pipeline supply or
install an O
2
cylinder.
O
2
flush stuck on? User Alarm
Middle
The pressure switch that
detects flush flow has seen a
very long flush (30 sec).
This alarm occurs if you hold
down the Flush button for
more than 30 seconds.
If persists, check:
• O
2
flush switch
• Harness to CSB
• CSB
O
2
% high User Alarm
Middle
O
2
% > alarm high limit setting. Is the limit set correctly?
What is the O
2
flow?
Did you just push Flush?
Does the sensor see 21% O
2
in room air?
Calibrate O
2
sensor.
Replace O
2
sensor.
O
2
% low User Alarm
Middle
O
2
% less than alarm low limit
setting.
Is the limit set correctly?
Is the O
2
flow sufficient?
Does the sensor see 21% O
2
in room air?
Calibrate O
2
sensor.
Replace O
2
sensor.
As sensors wear out, the
measured% O
2
decreases.
Message
Alarm/
Shutdown
Cause User Action/ Concerns Service Repair
M1207027 004 MANUAL−DOC, Technical Reference Manual, Technical Reference Manual for 9100c, English−default
Reproduced from the electronic master in MATRIX