T- 1.3.0 Temperature Exceeds 38.9 Degrees C; T- 1.3.11 Isolate Incoming Water Temperature; T- 1.3.12 Ro Temp Less Than 34 Degrees C - Fresenius Medical Care 2008K2 Troubleshooting Manual

T- 1.3.0 TEMPERATURE EXCEEDS 38.9°C
This procedure isolates between uncontrollable temperature, unstable monitoring, or high incoming water
temperature. BE CAREFUL!
a) From the Home screen, set [Dialysate Flow] to 800 ml/min and press 'CONFIRM'.
b) Allow [Temperature] to increase to more than 38.9° C!
TURN THE HEATER SWITCH OFF TILL INSTRUCTED!
c)
d) Watch [Temperature] for up to five (5) minutes until it either: 1) Starts falling OR 2) NEVER starts falling:
1) IF (and ONLY if) it starts falling: Allow it to fall
2) IF [Temperature] NEVER falls: See procedure number
e) NOTE [Temperature] THEN, WITHOUT LOOKING AWAY, watch it again for up to FIVE (5) minutes for
one of the following THREE (3) scenarios:
Scenario #1:
IF (and ONLY if) it STEADILY falls, until less than 35.5° C i.e. NEVER, EVER
increases: Proceed to
Scenario #2:
IF (and ONLY if) EVER INCREASES 0.2° C or more above what was noted in part
e: See procedure number
Scenario #3:
IF AFTER five (5) minutes, REMAINS more than 35.5° C: See procedure number
T- 1.3.11

T- 1.3.11 ISOLATE INCOMING WATER TEMPERATURE

a) Using a calibrated temperature meter check the incoming water (RO) source.
b) Measured temperature less than 34.0º C?
Yes Less than 34.0º C! See procedure number
No More than 34.0º C! The temperature of the tap water feeding the RO is too high!
T- 1.3.12 RO TEMP LESS THAN 34.0º C
a) Figure right, unplug the connector from the
distribution board position from the left, "MON-NTC". This
is temperature monitor NTC #3.
b) Call debug screen 4. Is TEMP (lower left)
LESS THAN 0.3?
page 241
T- 1.3.11
(page 238).
nd
2
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
0.3° C
BEFORE continuing to part e.
T- 1.3.11
, procedure number T- 1.3.40.
(page 238).
T- 1.3.12 (page 238).
(page 238)!
Page 238