Datex-Ohmeda Anesthesia Delivery Unit S/5, Technical Reference Manual

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Troubleshooting A-ELEC
Document No. 8502856
D-41
Battery
failure
HW temperature
low
The temperature is less
than 10
°
C.
See also battery failure
trouble shooting guide.
Has ADU been in normal
room temperature for over
4 hours?
Check battery temperature
sensor assemblies.
X
Battery
failure
HW temperature
high
The temperature is more
than 55 degrees.
See also battery failure
trouble shooting guide.
Is the ambient temperature
high?
Check that module cooling
fan is in operation and dust
filter is clean.
Change temperature
sensor assemblies.
x
HW AD error Not applicable / error
message appears when
mains power is turned ON.
x
System
Busy
N/A System is not yet ready to
process new keyboard
commands.
Stop pressing keys for a
while.
N/A
Un-
expected
reset in
startup
screen
N/A System Reset. See “Unexpected reset” on
page D-45
N/A
Keyboard
failure
N/A “Keyb. failure” –text in is
displayed in Ventilation
field.
LED next to “Silence
Alarms” –key is flashing
RED.
Check cable to DLCCADU
Replace DLCCADU x
ROM failure N/A Check sum error found in
the EPROM.
Startup screen will stay
permanently and the
system cannot be
operated.
On CPU2 board change the
Main SW cassette.
On CPU 4 board reload
Main SW.
N/A
RAM failure N/A Read and write test of RAM
fails.
Startup screen will stay
permanently and the
system cannot be
operated.
Replace CPU board. N/A
Message
in normal
screen
Message in
diagnostic page
Caused by Recommended action Err
Log.