GE Giraffe OmniBed Service Manual page 84

Chapter 4: Troubleshooting
Symptom Possible Cause
Pedal switches are disabled on
nurse setup screen or service
screen.
Elevating base will
not go up or down,
Defective elevating base
canopy works OK.
motor.
Defective relay board.
Canopy motor turns. Defective
belt or clutch.
Canopy motor does not turn.
Canopy will not go
Defective canopy motor
up or down with
pedal switches or
Canopy motor does not turn.
hand switches,
Defective 50 pin ribbon cable
Elevating base
between the relay and control
works OK.
board.
Canopy motor does not turn.
Defective relay board.
Defective canopy motor.
Canopy works in
one direction but Defective 50 pin ribbon cable
not the other. between the relay and control
board.
Defective relay board.
Canopy travels
down part way then An object fell into the opening
stops or goes very behind the radiant heater
slow for the last floppy door.
part.
Canopy rises slowly
and stops before
Broken rungs in rail drive belt
doors are opened
fully.
Use of alcohol or hand-
Canopy is clouded.
disinfectants
A patient probe is plugged into
Unit will not switch
Jack 2 on the probe panel.
to Baby Control
Baby Control is disabled on
Mode.
Service screen.
56
Action
Check Setup screen (wrench symbol) or service screen to see if
pedal switches are disabled.
Check the voltage to the elevating base motor. Refer to the Tips
section (4.6.9). If the voltage is OK, replace the elevating base
assembly.
Replace relay board.
Check rail drive belt and clutch. Refer to the Tips section (4.6.10).
Check the voltage to the canopy motor. Refer to the Tips section
(4.6.9). If voltage is OK, replace the canopy motor.
Check for continuity on pins 23, 24, 26, 27, 34 (motor control and
safety relay 2 control signals). If defective, replace the cable.
Replace relay board.
Check the voltage to the canopy motor for both up and down
movement. Refer to the Tips section (4.6.9). If OK, replace the
canopy motor/gearbox.
Check for continuity on pins 23, 24, 26, 27 (motor control signals).
If defective, replace the cable.
Replace relay board.
Check that the floppy door, located behind the radiant heater
moves freely. Look to be sure nothing has fallen behind the door.
Inspect belt. Refer to the Tips section (4.6.10).
Replace canopy.
Disconnect probe from Jack 2 (unit will only allow Baby Control
operation with a single probe in Jack 1).
Select BOTH for Patient Control on service screen to activate
Baby Control.
6600-0343-000 104
© 2001 by Datex-Ohmeda, Inc.. All rights reserved.