Fresenius Medical Care 2008K2, Troubleshooting Manual

Page: 264 / 676

2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
Page 260
T- 1.8.0 ISOLATE NTC #2
a)
Turn the HEATER Switch OFF!
b) Figure right, move NTC #2’s connector from the
1
st
distribution board position from the left, “CON-NTC” to
the
2
nd
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 T- 1.8.1 (page
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
2
nd
distribution
board position from the left, “MON-NTC”!
b) NTC #2 is bad! To LOCATE NTC #2 refer to Figure 42 (page 218).
T- 1.8.1 NTC #2 OKAY / VERIFY ‘TEMP COMP’ OPTION
a)
Return NTC #2’s connector to 1
st
distribution board position from the left, “CON-
NTC”!
b)
Avoiding the VACANT position at the right (“PH-PR”), return NTC #3’s connector
to the 2
nd
distribution board position from the left, “MON-NTC”!
c)
Turn the HEATER Switch ON!
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 (page 261).
No Temp Comp = No! See procedure number T- 1.8.2 (page 261).