T- 5.0.0 Check Temp (Screen 4); T- 5.0.1 Temp Less Than 1.0 - Fresenius Medical Care 2008K2 Troubleshooting Manual

T- 5.0.0 CHECK TEMP (SCREEN 4)

From debug screen 4, is TEMP LESS THAN 1.0?
Yes TEMP is less than 1.0! See procedure number
No TEMP is more than 1.0! Proceed to

T- 5.0.1 TEMP LESS THAN 1.0

Turn the machine OFF!
a)
b) Open the card cage.
c) Figure right, now place the
from the TWO-RESISTOR SET in
2nd
the distribution board position
from the left, "MON-NTC".
Set your CALIBRATED volt meter to resistance (Ω)!
d)
Connect the meter's black lead to chassis ground (see
e)
f) Per Figure 53 below, measure at the solder side of Sensor Board's 'X2' connector at pin 12 (top row, 6
pins from the rear of the machine).
g) Figure right, reading the meter's numeric AND
units display LESS than 300
page 297
274 Ω
Figure 53 – NTC #3 Checks
Ω
(Yes or No)?
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
T- 5.0.1 (page 295).
, procedure number T- 5.0.3.
Figure 2, page 4)).
Page 295