System Failure 12; System Failure 13; System Failure 14; System Failure 15 - GE Giraffe OmniBed Service Manual

Chapter 4: Troubleshooting

4.4.10 System Failure 12

System failure 12 indicates: Incorrect control board system software checksum.
Cause(s)
Defective system software PROM on control board.
Defective control board.

4.4.11 System Failure 13

System failure 13 indicates: Defective SRAM.
Cause(s)
Defective SRAM circuit on control board.

4.4.12 System Failure 14

System failure 14 indicates: Defective WDOG.
Cause(s)
Defective watch dog circuit on control board

4.4.13 System Failure 15

System failure 15 indicates: Safety Relay 1 test failure. Unable to turn either heater on or off by switching safety
relay 1. When troubleshooting this error code, have on hand at least the 50 pin ribbon cable.
NOTE: If system failure 22 appears during operation, system failure 15 should appear at startup.
Cause(s)
If this error occurs
during system
calibration, J1, J2, and
J4 were not unplugged,
or calibration jumper
JP1 is not installed
properly.
Air temperature sensor
is above 40C at power-
up.
Defective sensor in
compartment air
probe.
Defective compartment
air probe cable
46
Action(s)
Before calibrating make sure J1, J2, and J4 on the control board are disconnected. Verify
jumper JP1 is correctly positioned. (Refer to system calibration instructions.)
If the unit was shut off when the incubator heater was hot, allow the fan to run for a few
minutes to cool to below 40C, then power down and back up.
Disconnect connector J1 from the control board. Power cycle the unit. If the error clears, either
the compartment air probe or the air probe cable is defective. Reconnect J1 and disconnect
the compartment air probe connector at the compartment probe. If the unit now powers up
OK, the compartment air probe is defective.
If system failure 15 persists with connector J1 connected, and the compartment air probe
disconnected, then the compartment air probe cable is defective.
6600-0343-000 104
Action(s)
Install new system software 6600-0234-850.
If the error persists with new software, replace the control
board
Action(s)
Replace control board
Action(s)
Replace control board.
© 2001 by Datex-Ohmeda, Inc.. All rights reserved.