T- 1.0.22 Temperature Less Than 35.1 Degrees C; T- 1.0.23 Measured Temperature, With Ntc #2 Unplugged Exceeds 35.5 Degrees C; T- 1.0.24 Temp Is 4.0 Or More - Fresenius Medical Care 2008K2 Troubleshooting Manual

T- 1.0.22 TEMPERATURE LESS THAN
Set your CALIBRATED volt meter to AC volts
a)
(~ V, V )!
AC
b) Figure right, unplug the connector from the
board position from the left, "CON-NTC". This is NTC #2.
c) Figure right, measure at the distribution board's Heater
Connector, between the BROWN and BLUE wires.
d) TWO (2) possible scenarios:
1) IF (and ONLY if) less than 100.0 volts AC: Leaving
NTC #2 unplugged till instructed, proceed to
263
, procedure number
2) IF MORE THAN 100.0 volts AC: Leaving NTC #2
unplugged, see parts a AND b below:
a) ENSURE the external flow indicator's 'bob' is moving up and down.
b) WITHOUT LOOKING AWAY, watch the meter for UP TO SEVEN (7) minutes OR until if it
EVER reaches more than 35.5° C even if only once?
Yes
No Less than 35.5° C! Either incoming water is EXTREMELY cold OR you made an error
and heater voltage IS NOT more than 100 volts AC OR the heater is intermittent bad.
T- 1.0.23 MEASURED TEMPERATURE, WITH NTC #2 UNPLUGGED, EXCEEDS 35.5° C
IMPORTANT!
a) Return NTC #2's connector to
b) If a 6.04 KΩ plug was previously placed in NTC #3's distribution board position ("MON-NTC") remove it
and return NTC #3's connector to the
c) Call debug screen 4 to see TEMP (lower left). TWO (2) possible scenarios:
1) IF (and ONLY if) 4.0 or more: NTC #3 is okay. See procedure number
2) IF LESS THAN 4.0: NTC #3* is plugged in incorrectly OR is bad. *To LOCATE NTC #3 refer to
Figure 42 (page 218).

T- 1.0.24 TEMP IS 4.0 OR MORE

a) If a 274 Ω plug was previously placed at the Cond Cell's distribution board position, "X7, COND", remove
it and return the Cond Cell's connector.
page 260
b) Proceed to
35.1° C
st
1
T- 2.0.0.
35.5° C OR more!. See procedure number
nd
2
position from the left!
, procedure number T-
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
distribution
page
T- 1.0.23
st
1
distribution board position from the left, "CON-NTC".
1.8.0.
(page 234).
T- 1.0.24 (page 234).
Page 234