Fresenius Medical Care 2008K Troubleshooting Manual page 249

OVER- 7.0.0 CHECK VALVE #41
With the water and machine on:
Referring to the Figure (right), unplug valve #41 from distribution
board position V27, "IN-V". Does 'massive' overflow continue?
Yes a) Check inside the vacant V27, "IN-V" position for 'white'
corrosion or damaged male pins.
b) Two possibilities: 1) Bad valve #41; 2) Bad distribution
board.
No See procedure number
OVER- 7.0.1 CHECK FLOAT SWITCH (Massive Overflow)
With the water and machine on:
a) CAREFULLY return valve #41 to distribution board position
labeled "IN-V, "V27 or "P27". If (and ONLY if) 'massive'
overflow happens again proceed to part b.
b) Referring to the Figure (right), unplug the float from distribution
board position labeled "FLOAT-SW" (3
left). Does 'massive' overflow continue?
Yes Replace the actuator board (see
No a) Check inside the vacant "FLOAT-SW" position
for 'white' corrosion or damaged male pins.
b) Referring to the Figure (right), remove the
heater and check its port into the top of the
hydroblock/hydrochamber for heat related
damage (i.e. melting). If (and ONLY if) damage
is located it will be necessary to replace the
hydroblock/hydrochamber.
c) Reinstall the heater.
d) If massive overflow continues, three
possibilities: 1) Bad float switch (see
28, page 59); 2) Bad actuator cable; 3) Bad
distribution board.
Figure 103 – Hydraulics (FRONT) View / Pumps
OVER- 7.0.1 (page 247).
rd
connector from the
Figure
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 20 - Troubleshooting Overflow From The Vent Tube
4A, page 8)
Figure
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