Error Messages After Turning Power On - Fresenius Medical Care 4008 E Technical Manual

1.1.5

Error messages after turning power on

Error message
EPROM ERROR
BRAM_#_XXXX_XXXX_XXXX
RAM ERROR
Keyboard Error
Watchdog Error
XX (not calibrated)
NTC109 switched off
1-70
Fresenius Medical Care 4008 4/08.03 (TM)
Description
System error.
Check the plugs and the EPROM for proper connection. Replace the
EPROM, if necessary.
System error.
Switch the machine off and on again.
Check the plugs and the BRAM for proper connection. Replace the
BRAM, if necessary. Then recalibrate.
System error.
Switch the machine off and on again.
Check the plugs and the RAM for proper connection. Replace the
RAM, if necessary.
Short-circuit on the keyboard.
Switch the machine off and on again.
Check the plugs for proper connection. Possible short-circuit on the
keys. Replace the front panel, if necessary.
This error message can only be displayed shortly after switch-on.
Switch the machine off and on again.
Check the WD relay and components. Check CPU2/CPU1. Check the
plug connectors on the monitor.
NOVRAM error upon test request.
Switch the machine off and on again.
Recalibrate the function indicated. Replace the NOVRAM, if neces-
sary.
No valid value has been filed during start in the NOVRAM. The differ-
ence in temperature between NTC 109 and NTC 3 is too large.
Switch off NTC 109 in the setup menu, or recalibrate the temperature.