Mindray WATO EX-55Pro, Service Manual

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8-4
Message
Alarm
Priority
Cause Solution
and expiratory valve assembly.
4. When necessary, replace the VCM
board.
5. When necessary, replace the
expiratory valve assembly..
6. When necessary, replace the power
board.
Insp Valve
Failure
Medium
1. Inspiratory valve voltage
error2. Inspiratory valve flow
error
1. Check whether the accuracy of the
inspiratory flow sensor is within the
valid range. On the [Maintenance]
menu, calibrate the flow sensor. Or,
when a flow error occurs, replace the
flow sensor.
2. Test the voltage at the corresponding
testing point.
3. Check the installation of and
connection between the power cable
and expiratory valve assembly.
4. When necessary, replace the VCM
board.
5. When necessary, replace the
expiratory valve assembly..
6. When necessary, replace the power
board.
Safety Valve
Failure
Medium
PEEP safety valve voltage
error
1. Test the voltage at the corresponding
testing point.
2. Check the installation of and
connection between the power cable
and expiratory valve assembly.
3. When necessary, replace the VCM
board.
4. When necessary, replace the
expiratory valve assembly.
5. When necessary, replace the power
board.
Flow Sensor
Failure
Low
The ventilator flow is out of
range.
1. Check whether the zero point of the
flow sensor is within the valid range.
2. Check whether the monitored value
of the flow sensor is within the valid
range.
3. Replace the flow sensor and perform