T- 1.8.0 Isolate Ntc #2; T- 1.8.1 Ntc #2 Okay/Verify Temp Comp Option - Fresenius Medical Care 2008K2 Troubleshooting Manual

T- 1.8.0 ISOLATE NTC #2

Turn the HEATER Switch OFF!
a)
b) Figure right, move NTC #2's connector from the
distribution board position from the left, "CON-NTC" to
nd
2
the position from the left, "MON-NTC", AVOIDING
the VACANT position at the right,
c) Call debug screen 4. Allow up to seven (7)
minutes OR until if TEMP (lower left) falls to
2.5 OR less?
Yes TEMP = 2.5 OR less! NTC #2 appears to be okay. See procedure number
260).
No TEMP more than 2.5! See parts a and b below:
a) ENSURING the HEATER Switch was OFF, return NTC #3's connector to
board position from the left, "MON-NTC"!
b) NTC #2 is bad! To LOCATE NTC #2 refer to
T- 1.8.1 NTC #2 OKAY / VERIFY 'TEMP COMP' OPTION
Return NTC #2's connector to 1
a)
NTC"!
Avoiding the VACANT position at the right ("PH-PR"), return NTC #3's connector
b)
nd
to the 2 distribution board position from the left, "MON-NTC"!
Turn the HEATER Switch ON!
c)
d) Enter Service Mode → Options → Hardware Options. Does the "Yes" box next
to 'Temp Comp' have a blue 'X' in it (Yes or No)?
Yes Place the 'X' in the "No" box and press 'CONFIRM'. The 'X' turns
blue. Post a note that 'Temp Comp' is off then see procedure
number T- 1.8.2
No Temp Comp = No! See procedure number
st
1
st
distribution board position from the left, "CON-
(page 261).
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
Figure 42 (page 218).
T- 1.8.2 (page 261).
T- 1.8.1 (page
nd
2
distribution
Page 260