GE Giraffe OmniBed Service Manual

4.3.18 “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 4.3.20 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 (4.6.6).
Humidier heater measures
OK
Relay boards rev 10 or higher
In service mode, verify mains voltage is present at the
input to the humidier isolation transformer. (J55 1-2)
Relay boards rev 9 or lower.
Humidier Interface Board is
mounted on relay board
In service mode, verify mains voltage is present at the
input to the humidier isolation transformer. (J56 1-2)
J56 is on Humidier Interface Board mounted on relay
board.
No mains voltage at input
to humidier isolation
transformer. (J55, 1-2)
Defective fuse. Relay boards
rev 10 or higher
Check fuses F3 and F4 on the relay board. If OK,
continue.
Defective fuse. Relay boards
rev 9 or lower. Humidier
Interface Board is mounted
on relay board.
Check fuses on humidier interface board.
Defective relay board. Replace the relay board.
40 6600-0343-000 104 © 2001 by Datex-Ohmeda, Inc.. All rights reserved.
Chapter 4: Troubleshooting

GE Giraffe OmniBed Specifications

General

Brand	GE
Model	Giraffe OmniBed
Category	Medical Equipment
Language	English