Chapter 7: Error messages
Fresenius Medical Care 4008 S (Version V10) SM-EN 7/01.13 7-9
7.1.10 Blood leak test
7.1.11 Temperature test
Error message Description
F01 Blood Leak Blood leak channel and dimness not in alarm-free condition during the T1 test.
– Dimness channel contaminated (calcium precipitate, etc.)
– Acknowledgement (BLL, X637/A18) X633L/B10 voltage value within the
alarm tolerances ( 3V / 8V)
– Acknowledgement (BLL_DIM, X637A/21) X633L/B11 voltage value within
the alarm tolerances ( 1.5 V / 8V)
– DAC_BLL or DAC_DIM not within the tolerances (check calibration)
F02 Blood Leak The blood leak alarm / dimness alarm is not recognized during test detuning.
– Acknowledgement (BLL, X637/A18) X633L/B10 voltage value not within
the alarm tolerances ( 3V)
– Acknowledgement (BLL_DIM, X637A/21) X633L/B11 voltage value not
within the alarm tolerances ( 1.5 V)
– Test detuning (BLL_DET, X632/A25) X633L/B27 not 5 V
– Calibration of DAC_BLL or DAC_DIM is too high
– Detuning (DAC_DIM, X634R/A11) X633L/C3 impossible
– Dimness calibration is set to potentiometer calibration
(BR6 from pos. 1/2 to 2/3)
F03 Blood Leak After test detuning, the blood leak channel and dimness fail to enter the
alarm-free state.
– Dimness channel contaminated (calcium precipitate, etc.)
– Acknowledgement (BLL, X637/A18) X633L/B10 voltage value within the
alarm tolerances (3 V / 8V)
– Test detuning (BLL_DET, X632/A25) X633L/B27 not 0 V
– Acknowledgement (BLL_DIM, X637A/21) X633L/B11 voltage value within
the alarm tolerances ( 1.5 V / 8V)
– DAC_BLL or DAC_DIM not within the tolerances (check calibration)
F95 Blood Leak System error
Error message Description
F01 Temperature The temperature measuring range is not set to hemodialysis.
– Control line (HOTRINSE, X634R/C24) X639/A20 not 0 V
– Acknowledgement (HOTRINSE, X634R/C24) X632/A26 not 0 V
F02 Temperature The actual temperature is less than 35.0 °C (test running time > 15 minutes).
– Calibrate the temperature
– The heater rod has failed
– Acknowledgement (T_DIAL1, X633L/B16) X632/A24, voltage got stuck.
F03 Temperature The actual temperature is higher than 39.0 °C (test running time 15> 15
minutes).
– Calibrate the temperature
– The regulating sensor (NTC-2) is defective
– Acknowledgement (T_DIAL1, X633L/B16) X632/A24, voltage got stuck.