GE Giraffe Service Manual

Cause or Circumstances Failure Action
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.
Old design fan.
Replace with new design fan. The new fan can be
identied by the grooves molded in the 2 black
areas on the bottom of the fan (side facing the heat
sink). The old fan has smooth surfaced black areas.
Defective or obstructed
optical sensor. Sensor
holder or sensor gasket
dirty or crazed.
Check that sensor, sensor holder, and gasket and
free of dirt or other contaminants. Clean or replace.
Defective 50 pin ribbon
cable between the relay
and control board.
Check for continuity on pin 9 (AIRFLOW). If defective,
replace the cable. Refer to the Tips section 4.6.9.
Defective relay board. If the problem persists, replace the relay board.
4.3.13 “Humidier Failure” Alarm
NOTE: The “Humidier Failure” alarm can be caused by non-humidier issues.
Cause or Circumstances Failure Action
The Motor Drive Failure
alarm is on.
If this alarm activates, it
opens safety relay 2 and
disables the humidier.
Refer to section 4.3.14 for troubleshooting.
The Elevating base
does not function. If the
elevating base does not
function, then safety relay
2 is not being energized.
Defective 50 pin ribbon
cable between the relay
and control board.
Check for continuity on pin 34 (safety relay 2 control
signal). If defective, replace the cable. If good,
replace the relay board.
Elevating base functions
Humidier safety
thermostat is open.
Wait for the heater to cool. Cycle power to see if
alarm resets.
Defective humidier
heater or humidier
safety thermostat.
Check safety thermostat and humidier heater
resistance. Refer to the Tips section 4.6.5.
36 6600-0356-000 103 © 2001 by Datex-Ohmeda, Inc.. All rights reserved.
Chapter 4: Troubleshooting

GE Giraffe Specifications

General

Manufacturer	GE Healthcare
Type	Incubator
Humidity Range	30% to 95% RH
Power Supply	50/60 Hz
Model	Giraffe
Features	integrated scale
Control Modes	Air and Skin