2008T Troubleshooting Guide
P/N 490292 Rev. A
T- 2.1.7 T5 BETWEEN 2.0 AND 28 VOLTS AND PIN 7 MORE THAN 4.0 VOLTS
a) Turn the machine OFF!
b) Referring to the Component List below, swap them in, one at a time, then in between continue to part c
to see if the new component fixed the problem.
Component List: 1) Twenty pin Power Logic Cable; 2) Power Control board (inside the power supply);
3) Power Logic Board; 4) Functional Board
1
; 5) Motherboard
1
To prevent a “Cond Offset Failure” alarm place the machine into T and C Mode (refer to OPERATING
MODES, page 19)
c) If troubleshooting a DIALYSIS PROGRAM temperature problem return to it (“Select Program” →
‘Dialysis’ → ‘Enter’). If a HEAT DISINFECT problem return to HEAT DISINFECT.
d) Measure again at the Power Logic board’s
T5 TOP pin. If necessary, refer to Figure 44 (page 282).
LESS THAN two (2.0) volts DC now?
Yes T5 LESS THAN 2.0 volts! The new component fixed the problem
No T5 between 2.0 and 28.0 volts! Repeat parts a through d until T5 is LESS than 2.0 volts DC.
LEFT BLANK INTENTIONALLY
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