Heater Doors Not Closed" Alarm; Heater Doors Not Opened" Alarm - GE Giraffe OmniBed Service Manual

4.3.16 "Heater Doors Not Closed" Alarm

Cause or Circumstances
This alarm activates as
the canopy reaches about
halfway down and the heater
doors are not both closed.
Doors are closed.

4.3.17 "Heater Doors Not Opened" Alarm

Cause or Circumstances
This alarm activates as the
canopy reaches the top of its
travel and the heater doors
are not both open.
Doors are open
© 2001 by Datex-Ohmeda, Inc.. All rights reserved.
Failure
Doors not closing.
Defective switch or harness.
Defective 50 pin ribbon cable
between the relay and control
board.
Defective relay board.
Failure
Doors not opening
Defective switch or harness
Defective 50 pin ribbon cable
between the relay and control
board.
Defective relay board
Action
Check to sure both heater doors are closing fully as the
canopy starts to lower. If not, fix mechanical problem.
The two heater door switches are in series. Check
for continuity at J31 1-3. If defective, remove heater
housing cover and check continuity at connector
in switch harness pins 1-3 to determine if switches
or harness in rail is defective. If continuity is good,
continue.
Check for continuity on pin 8. If defective, replace the
cable. If good, continue.
Replace the relay board.
Action
Check to be sure both heater doors are opening fully
when the canopy is all the way up. If not, fix mechanical
problem. For example, adjust the spring tube position to
allow full travel.
The 2 door switches are in series. Check for continuity
at J31 2-3. If defective, remove heater housing cover
and check continuity at connector in switch harness
pins 2-3 to determine if switches or harness in rail is
defective. If continuity is good, continue.
Check for continuity on pin 7. If defective, replace the
cable. If good, continue.
Replace the relay board.
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Chapter 4: Troubleshooting
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