2008T Troubleshooting Guide
P/N 490292 Rev. A
T- 1.3.40 ISOLATE TEMPERATURE CONTROL
a) Figure right, place the 90°
C (0.915
KΩ) plug, from the FOUR-
RESISTOR SET into the 1
st
distribution board position from the left,
“CON-NTC”.
b)
Set your volt meter to AC voltage (~ V, V
AC
)!
c) Turn the HEATER Switch ON!
d) Figure right, measure at the distribution board’s Heater
Connector, BETWEEN the BLUE and BROWN wires.
TWO (2) possible scenarios:
1) IF (and ONLY if) 100.0 volts AC or more:
Leaving the 90°
C plug installed, proceed to
page 306, procedure number T- 4.0.0.
2) IF LESS THAN 10.0 volts AC: ENSURING the HEATER Switch was on AND the meter was set to
AC voltage prior to measuring, see procedure number T- 1.3.60 (page 259).
T- 1.3.60 ISOLATE NTC #2
a) Call the Home screen to see the machine’s [Temperature] display.
b) Remove the 90
o
C plug from distribution board position, “CON-NTC”.
c) LEAVING “CON-NTC” VACANT, allow [Temperature] to increase to more than 38.0° C BEFORE
continuing to part d!
d)
Set [Dialysate Flow] to ”OFF” and press
‘Enter’!
e) Figure right, avoiding VACANT position #4, plug NTC
#2’s connector, into NTC #3’s position,
2
nd
position
from left, “MON-NTC”. Leave NTC #3 unplugged!
f) Call debug screen 4 to see TEMP (lower
left). TWO (2) possible scenarios:
1) IF (and ONLY if) TEMP is more than 3.0: See procedure number T- 1.3.70 (page 260).
2) IF TEMP is less than 3.0: See parts A and B below:
A) Replace NTC#2* it with a known good. *To LOCATE NTC #2 refer to Figure 42 (page
236).
B) See procedure number T- 1.3.70 (page 260).
To Next Page
Loading...
Need help?
General
