Fresenius Medical Care 4008 S Service Manual

Chapter 7: Error messages
Fresenius Medical Care 4008 S (Version V10) SM-EN 7/01.13 7-29
7.4 Error messages during treatment
Error message Description
Voltage Failure The supply voltages 24 V / 12 V are not consistent.
The device enters the safe state and must be switched off / on.
– The 12 V or 24 V operating voltage is outside of the permissible range:
24 V: > 26 V / < 22.5 V
12 V: > 12.8 V / < 11.0 V
– Check the power supply unit
– Power adapter OK: Check the voltages on P.C.B. LP 633-5:
+12 V: X633R/A, C31
+24 V: 24V_EM: X633L/B20
24 V Switched Off The 24 V supply voltage has fallen below 5 V.
The device enters the safe state and must be switched off / on.
– Check the power supply unit
– Power adapter OK: Check the voltages on P.C.B. LP 633-5:
+24V_EM: X633L/B20
– Remove all P.C.B.s. If the device is running: Turn the device off, reconnect
all P.C.B.s while the device is switched off; determine the defective P.C.B.
and repair it.
– Completely loosen the hydraulic compartment connections
Caution: J1 must now be fitted on P.C.B. LP 630 since, as the device will
otherwise not be able to perform the watchdog test! Be absolutely sure to
remove the jumper again for hemodialysis operation!
With the device running, check the short circuit in the hydraulic compartment
for 24 V supply and the valves and pumps for short circuit.
CPU-II failed CPU2 fails to communicate via the serial interface.
The device enters the safe state and must be switched off / on.
– The software versions of CPU1 and CPU2 do not match
– Hardware defect on CPU2
Profile time diff. Deviation in time between CPU1 and CPU2.
The error message is emitted 60 seconds after the start of the profile.
– The clock module on CPU1 (IC 14) is defective or calibrate the time in case
of layout < D
Cyclic PHT F01 Balancing error
– System leakage
– Applicable to Diasafe devices: CPU2, array 2, DIP switch 1 is not in position
ON
Cyclic PHT F02 Balancing error
– System leakage
– Applicable to Diasafe devices: CPU2, array 2, DIP switch 1 is not in position
ON
Cyclic PHT F03 IC1 or IC3 on P.C.B. LP 632 is defective, or device leakage
Cyclic PHT F04 It was not possible to complete the test within a specific time interval

Fresenius Medical Care 4008 S Specifications

General

Brand	Fresenius Medical Care
Model	4008 S
Category	Medical Equipment
Language	English