GE Giraffe Service Manual

Symptom Possible Cause Action
Bed warms up
very slowly, may
not reach set
temperature.
One of the bed heater
cartridges is defective.
Feel the heat sink to see if one side is cooler than the other.
Use care, since the heat sink can reach temperatures as
great as 121C (250F). Replace the cartridge on the cool
side.
Unit always
powers up in
service screen
mode.
Defective dipswitch setting
Check position 8 on the control board dipswitch. Should be
set to O position.
Override switch (>37C) on
control panel shorted
Check switch on switch diagnostic screen.
Screen refreshes
every few seconds
while scale is
attached.
Defective circuit on control
board (Unbiased RS485 bus
during idle state).
Replace control board with revision 17 or higher.
Defective scale.
Disconnect scale connector at probe panel. Power cycle
the unit. If error clears replace the scale.
Defective scale harness.
Disconnect scale harness from J7 on the control board.
Power cycle the unit. If error clears replace the scale
harness.
Noise from
speaker on power
down.
Microprocessor does not
hold reset during power o.
If noise is excessive, replace control board with revision 17
or higher.
Fan is running in
high speed but
no FAN ALWAYS
IN HIGH SPEED
message and the
Boost Air Curtain
Indicator is not lit.
This is normal condition for
90 minutes after power up,
45 min. after transition from
open to closed bed mode,
and during other conditions
as determined by the heat
control software.
To check HIGH and LOW fan speed, power up the unit.
After the power up sequence is complete, hold down
the Boost Air Curtain button and press the decrease
temperature button to place the unit into low fan speed.
The Boost Air Curtain button will now toggle the fan
between high and low speeds.
Bed will not lock in
tilt position.
Tilt ball not engaged in
nger pocket latch.
Tilt the head of the bed platform all the way down while
holding the latch open, then let the latch close to capture
the tilt ball. (Refer to “Disassembling the Incubator for
Complete Cleaning” in the Operation and Maintenance
manual.)
Tilt brake pad failure. Replace the tilt brake.
Baby Cold or Baby
Hot Alarm does
not trigger at
0.5C or 1.0C in Air
Control mode.
Manual Temp. Alarm is
disabled on Service Screen.
Enable Manual Temp. alarm.
Humidier
reservoir is crazed
(has hairline
cracks).
Sterilization Replace humidier reservoir.
52 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