GE Giraffe OmniBed Carestation CS1 Service Manual page 87

ID Symptom
S20 Canopy works in one direction
but not the other.
S21 Canopy travels down part way
then stops or goes very slow
for the last part.
S22 Canopy travels down part way
then stops and gives an in-
transition alarm.
Heater doors are mechanically
closed, but switch status on
Service screen does not
indicate closed.
S23 Canopy rises slowly and stops
before doors are opened fully.
S24 Canopy is clouded.
S25 The radiant heater doors do
not close completely when the
canopy is lowered.
Service Manual
Possible Cause(s)
Defective canopy motor.
Defective 50 pin ribbon
cable between the relay
and control board.
Defective relay board.
An object fell into the
opening behind the radiant
heater floppy door.
Heater door switch(es) is
(are) malfunctioning.
Heater door sensor wire
harness (6600-0752-700) is
loose or damaged.
Broken rungs in rail drive
belt
Use of alcohol or hand-
disinfectants
Heater door top seal or
bottom seal interferes with
the doors.
Heater door arm on spring
spool assembly is stuck.
Heater door spring spool
assembly pins are
touching the heater door
cable.
Chapter 5: Troubleshooting
Troubleshooting Symptoms
Action(s)
Check the voltage to the
canopy motor for both up and
down movement. Refer to the
Tips section (5.3.4). 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.
Remove heater housing cover
to access door switches. Use a
small screw driver to adjust the
switches so that two distinct
clicks are heard when switches
move. If necessary, replace
switches.
Remove heater housing cover
to access and inspect the wire
harness. If necessary, reinstall
and/or replace the harness.
Before removing the harness,
note which switch pins are
connected to which harness
lead for proper re-installation.
Inspect belt. Refer to the Tips
section (5.3.5).
Replace canopy.
Move or replace the seal.
Replace the heater door spring
spool assembly.
Straighten pins away from the
spring spool and cable.
5-5