Chapter 6: Alarms and System Failure Codes
Alarms
6-6
Service Manual
6.1.12 Fan Always in High Speed Alarm
6.1.13 Fan Failure Alarm
Cause or Circumstances
Failure
Action
Software cannot read
temperature of the heat sink
sensor in incubator heat sink.
Defective heat sink sensor or
harness
Check the heat sink temperature
sensor resistance in service Mode.
You can also check heat sink sensor
resistance by disconnecting the
harness from J3 at the control
board. Measure between pins 1 and
2.
If defective, remove the chassis
cover and disconnect the harness
from heat sink sensor. Measure
sensor resistance at pins 1-2 on the
sensor harness to determine if
sensor or harness is defective.
Defective control board
If the heat sink sensor and harness
measure OK, then replace the
control board.
Cause or Circumstances
Failure
Action
Fan rotation is not being
detected.
Optical fan sensor not
detecting the fan
Note:
System failure 25 and FAN
FAILURE are both triggered
by the optical fan sensor
not detecting the fan. If this
occurs at power-up, a
system failure 25 will
activate. If it occurs after
the power tests are
completed, the FAN
FAILURE alarm will activate.
Fan is not turning.
Fan or fan hub not seated
properly
Verify the fan hub is properly
seated all the way down on the fan
shaft. (It may be necessary to wet
the part to get it to slide all the way
down on to the shaft.) Verify the fan
is seated in the groove at the top of
the hub.
Defective fan motor
Replace the fan motor.
Defective relay board
Replace the relay board.
Summary of Contents for Giraffe OmniBed Carestation CS1
Page 4: ...RH 2 Service Manual ...
Page 24: ...Service Language Disclaimer viii Service Manual ...
Page 40: ...Safety and Regulatory Information User Responsibility xxiv Service Manual ...
Page 44: ...Chapter 1 Functional Description Control Board 1 2 Service Manual FIGURE 1 1 Block Diagram ...
Page 74: ...Chapter 3 Calibration and Maintenance Line Voltage Calibration 3 12 Service Manual ...
Page 82: ...Chapter 4 Understanding the Service Interface Upgrade 4 8 Service Manual ...
Page 110: ...Chapter 5 Troubleshooting Diagnostic Readings 5 28 Service Manual ...
Page 211: ...Chapter 7 Repair Procedures Display Harness Connections Service Manual 7 75 ...
Page 212: ...Chapter 7 Repair Procedures Display Harness Connections 7 76 Service Manual ...
Page 294: ...Chapter 8 Illustrated Parts Wiring Diagrams 8 82 Service Manual ...
Page 296: ...Appendix A Compartment and Skin Probe Characteristics A 2 Service Manual ...
Page 304: ...Appendix C RS 232 Serial Data Nurse Call C 4 Service Manual ...