9100c
7-8 M1207026
7.4 Alarm and Shutdown messages
This section covers the Alarm messages (not shaded) and Shutdown
messages (shaded) experienced by the ventilator system.
If a User Alarm persists after the recommended action has been
performed, the message indicates the probable component and
related circuit that needs repair. Use the Service Mode tests to isolate
the fault. The items in the Service Repair column indicate the path
from the named component to the control board.
Shutdown Message
Alarm Message
Message
Alarm/
Shutdown
Cause User Action/ Concerns Service Repair
10VA of PEEP and Flow
Valve Power Failure
Shutdown Ventilator malfunction. Ventilate manually.
Monitoring is not reliable.
Replace:
•CSB
•DMB
• PEEP Valve
• Inspiratory Flow
Valve
Apnea User Alarm
Middle
No mechanical breaths or
spontaneous breaths > 5 mL in
last 15 seconds.
Monitoring resumes after first
breath (mechanical) or 2
breaths within 30 sec
(nonmechanical).
Connect O
2
sensor? User Alarm
Middle
The O
2
sensor is not
connected to the cable.
Connect the O
2
sensor If persists, check:
•O
2
sensor cable
•CSB
CSB and Alarm MCU
Communication Failure
Shutdown Ventilator malfunction. Ventilate manually.
Monitoring is not reliable
Replace:
•DMB
•CSB
• Cable from DMB
to CSB
CSB and DMB
Communication Failure
Shutdown Ventilator malfunction. Ventilate manually.
Monitoring is not reliable
Replace:
•DMB
•CSB
• Cable from DMB
to CSB
DMB 3.3V voltage
Failure
Shutdown Ventilator malfunction. Ventilate manually.
Monitoring is not reliable
Replace:
•DMB
Flow Sensor Reference
Voltage Failure
Shutdown Ventilator malfunction. Ventilate manually.
Monitoring is not reliable
Replace:
•CSB
Inspiratory Flow Valve
(DAC) Failure
Shutdown Ventilator malfunction. Ventilate manually.
Monitoring is not reliable
Replace:
•CSB
Inspiratory Flow Valve
(Drive) Failure
Shutdown Ventilator malfunction. Ventilate manually.
Monitoring is still available.
Check/Replace:
• Flow Valve
• Flow Valve
harness
•CSB
Low battery voltage User Alarm
High
Voltage is <11V while using
battery power for 0.5 seconds.
Manually ventilate the patient
to save power. Is the mains
indicator light on?
Make sure power is connected
and circuit breakers are
closed.
M1207027 004 MANUAL−DOC, Technical Reference Manual, Technical Reference Manual for 9100c, English−default
Reproduced from the electronic master in MATRIX
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