Fresenius Medical Care 2008K Operator's Manual page 167

Chapter 6—Alarms and Troubleshooting
Message Purpose of Message
High Flow Error Possible balancing chamber problem.
High Temperature
The actual dialysate temperature has
exceeded the high-temperature alarm
limit. Machine is in bypass mode.
Warning! Hemolysis of blood in the dialyzer may occur
should the dialysate exceed a temperature of 42 °C.
Dialysate temperatures must be maintained below this
level. Do not return hemolyzed blood to the patient.
167
Dialysate
Alarm
Note: If the temperature
fluctuates between HIGH
TEMPERATURE and LOW
TEMPERATURE, see
"VARIABLE
TEMPERATURE."
Type Action Required
Warning A single occurrence is not a problem if the machine automatically
resets. If the problem persists for longer than one minute or occurs
repeatedly:
1) Check the water supply flow to the machine.
2) Check that the Dialysate Flow is on.
3) Set Dialysate Flow in the "Home" screen to 500 ml/min and verify
that the flow from the drain line is 500 ml/min  50 ml/min.
4) Turn the power off and on. If warning is not cleared, return the
blood to the patient if alarm occurs during treatment.
5) Take the machine out of service and alert a qualified service
technician.
1) Ensure that water is flowing to machine when turned on.
2) Check water supply to machine for excess temperature and
correct if necessary.
3) If heat disinfection was recently performed, place machine in
rinse cycle to decrease temperature.
4) Check the Temperature value in the "Home" screen. Re-enter it if
necessary and allow five minutes for the temperature to stabilize.
5) Check that the dialysate flow at drain line is 500 ml/min ± 50 ml.
6) If unable to reach prescribed temperature, return the blood to the
patient if alarm occurs during treatment.
7) Take the machine out of service, discontinue treatment, and alert
a qualified service technician.
Caution: Do not use the Heat Disinfect cycle until the
machine has been repaired. If you are unable to attain
proper dialysate temperature, return the blood to the
patient if alarm occurs during treatment. Take the machine
out of service and alert a qualified service technician.
2008K Hemodialysis Machine Operator's Manual Rev P