Fresenius Medical Care 2008K Troubleshooting Manual page 77

1)
2)
3)
CLEAN- 4.2.0 CHECK VALVE #29 (CYCLING WHITE TO BLUE)
This procedure checks if valve #29 is opening. Referring to
tubing attached, that will fit snugly onto valve #29's input nozzle is required. Read the procedure before
continuing!
a) Allow valve #29's dot to turn blue and then return to white.
b) QUICKLY CLAMP and remove the tubing from valve #29's nozzle.
c) QUICKLY attach the syringe tubing to the empty nozzle.
d) Watching screen 0, allow valve #29's dot to turn blue (for ONLY 9 seconds at a time!). If the valve is
open you should be able to push through it with no resistance (three scenarios):
1) Can push through but with significant resistance: Replace valve #29.
2) Cannot push through at all: Four possibilities: 1) Bad actuator board; 2) Bad valve #29 and/or its
blue wire harness; 3) Bad actuator cable; 4) Bad distribution board.
3) Can EASILY push through: Reattach #29's tubing, remove the clamp then see procedure
number CLEAN- 5.0.0 (page 76).
Can push through but with significant resistance: Replace valve #29.
Cannot push through at all: Four possibilities: 1) Bad actuator board; 2) Bad
valve #29 and/or its blue wire harness; 3) Bad actuator cable; 4) Bad distribution
board.
Can EASILY push through: Reattach valve #29's tubing and remove the clamp.
See procedure number CLEAN- 5.0.0 (page 76).
Figure 33 – Valve #29 Location
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 3 – Flow Errors In Cleaning Programs
Figure 33 (page 75) a syringe, with a piece of
Page 75