Fresenius Medical Care 4008 4/08.03 (TM) 1-53
1.1.4 Description of machine errors during the cleaning programs
● V84 monitoring
Error message Description
Rinse Failure F01 End of the rinse-free program in Dis I to V.
Conductivity has been recognized via V84, although the valve is still
closed.
This error message can be acknowledged by pressing the Rinse key.
Rinse Failure F21 Disinfectant suction phase in Dis I – IV.
Maximum permissible UF pump strokes (160) during the suction
phase) exceeded.
Error message cannot be acknowledged.
Turn the system off and on again.
Rinse Failure F02 Disinfectant suction phase in Dis I to IV.
Conductivity has not been recognized via V84, and the “Disinfectant
empty ?” message has been acknowledged twice.
This error message cannot be acknowledged.
Switch the machine off and on again.
Program Dis V (only on machines with advanced hydraulics)
No conductivity detected via concentrate level sensor, and “Disinfect-
ant empty ?” message acknowledged twice.
Error message cannot be acknowledged.
Turn the system off and on again.
Rinse Failure F03 End of the suction phase in Dis I to IV.
Conductivity has been recognized via V84, although the valve is al-
ready closed.
This error message can be acknowledged by pressing the Disinfection
key.
Rinse Failure F04 End of the suction phase in Dis I to IV.
The float switch does not recognize any fluid after the disinfectant has
been drawn in.
Aeration of the disinfectant container!
This error message cannot be acknowledged.
Turn the system off and on again.
F01, F02 and F03 cause the V84 monitoring flag to be set. I.e. after one of these error messages
has occurred, Bergström or ISO-UF dialysis is no longer possible, since it is not possible to switch
the flow off. The V84 malfunction can be eliminated by correctly performing Dis I to IV. The
problem can also be corrected using the calibration program (by a service technician only), menu
item NOVRAM (Reset V84).
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