T- 1.5.677 External Meter Exceeds 95 Degrees C - Fresenius Medical Care 2008K2 Troubleshooting Manual

T- 1.5.677 EXTERNAL METER EXCEEDS 95° C
a) Return NTC #3's connector to the
b) Replace Temperature control sensor
LOCATE NTC #2 refer to
c) Read before performing! Return to procedure number
fixed the problem. If (and ONLY if) you return to procedure number 1.5.677 continue to part D.
d) Swap in a known good Sensor Board* THEN continue to part E. *To LOCATE the board refer to
4A (page 9)
e) Perform TWO (2) calibrations: Cal 1) Temp Control; Cal 2) Cond Cells THEN continue to part F.
f) Read before performing! Return to (ABOVE) procedure number
board fixed the problem. If (and ONLY if) you return to procedure number 1.5.677 continue to part G.
g) Swap in a known good Functional Board THEN see part G
h) Perform FOUR (4) calibrations: Cal 1) Voltage Detection; Cal 2) Temp Sensor; Cal 3) Temp Control; Cal
4) Cond Cells THEN continue to part I.
i) Read before performing! Return to (ABOVE) procedure number
board fixed the problem. If (and ONLY if) you return to procedure number 1.5.677 the motherboard may
be bad.
nd
2
distribution board position from the left, "MON-NTC".
NTC #2*
with a known good.THEN continue to part C. *To
Figure 42 (page 218).
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
T- 1.5.1 (page 247) to see if the new NTC #2
T- 1.5.1 (page 247) to see if the new
T- 1.5.1 (page 247) to see if the new
Figure
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