P- G.5.4 Symptom Reoccurs/Isolate Hydraulic Sensors - Fresenius Medical Care 2008K2 Troubleshooting Manual

P- G.5.4 SYMPTOM REOCCURS / ISOLATE HYDRAULIC SENSORS
IMPORTANT! To prevent damage turn the machine OFF!
a)
b) To isolate ALL hydraulic sensors at the same time, Figure below, unplug the Sensor board's ribbon
cable!
IMPORTANT! Turn the machine on (fan running)!
c)
Dialysis Program
d) If possible go to
IGNORE acid and / or bicarb pump EOS alarms or possible grinding!
e)
ENSURE the black lead remains connected to chassis ground!
f)
g) Re-measure +12 and / or +5 volts (within range now?). If the symptom was intermittent call debug screen
1 to watch 5V Est and / or 12V Est. Allowing sufficient time, does the symptom you were troubleshooting
reoccur?
Yes Symptom reoccurs! Proceed to
No Screen on and / or good voltage(s)! See procedure number
or RINSE (DO NOT go to Heat Disinfect)!
page 615
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
, procedure number P- G.5.6.
P- G.5.5 (page 614).
Page 613