Fresenius Medical Care 2008K Troubleshooting Manual page 114

b) Calibrate Temp Sensor per procedure then return to Heat Disinfect. If the problem
reoccurs see procedure number
T- 3.0.3 CHECK DRAIN FLOW / RECIRCULATION
CAUTION! Potential hot fluid!
a) Carefully return NTC #3 to distribution board position
x3, "MON-NTC", SECOND position from the left.
b) Referring to the Figure (right), at the far end of the
drain tubing, if a 'quick connector' is present, an
adaptor IS required to allow flow. Another option is
to remove the 'quick connector'.
c) Remove the UF Sample Connector from its port and allow it to dangle. This prevents pressure buildup in
subsequent procedures.
d) Referring to the Figure 48
errors for now!
e) IMPORTANT! Referring to the Figure (right), hold the drain tubing so
that its opening is pointed UPWARD at approximately 45°.
f) Call debug screen 0. If Pre-Rinse time has expired
valve #29's dot = blue constant. If not ALLOW valve
#29's dot to turn blue, approximately every 100
seconds, for 9 seconds only.
g) Is there flow to drain WHEN valve #29's dot is BLUE?
Yes Unclamp valve #29. Two possibilities: 1) Bad actuator board; 2) Bad valve #30 (see
35 A, page 79).
No Unclamp valve #29 then see procedure number
T- 3.0.3
(page 112), tightly clamp the tubing at recirculation valve #29. Ignore flow
Figure 48 – Valve #29
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 4 – Temperature Problems
(page 112).
T- 3.0.4 (page 113).
Figure
Page 112