2008T Troubleshooting Guide
P/N 490292 Rev. A
P- G.5.4 SYMPTOM REOCCURS / ISOLATE HYDRAULIC SENSORS
a) To prevent damage turn the machine OFF!
b) Return the Functional board’s P41 connector!
c) To isolate ALL hydraulic sensors at the same time, Figure below, unplug the Sensor board’s ribbon cable!
d)
Turn the machine on (fan running)!
e) If possible, go to Dialysis Program (DO NOT go to Heat Disinfect!)
NOTE! IGNORE acid and / or bicarb pump EOS alarms or grinding!
f) ENSURE the black lead remains connected to ground!
g) Either re-measure +12 and / or +5 volts (within range?) OR 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
page 665, procedure number P- G.5.6.
No Screen on and / or good voltage(s)! See procedure number P- G.5.5 (page 664).
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