Fresenius Medical Care 2008K Troubleshooting Manual page 53

F- 14.0.7 VERIFY DIASAFE
a) Pull the red concentrate connector from its rinse port to interrupt Rinse.
b) Reattach the tubing to valve #24 and remove the clamp.
c) Is the machine equipped with a DiaSafe
Yes Using a flashlight, check for tubing restrictions in the tubing, to and from the DiaSafe
no restrictions are located, replace the DiaSafe
No Using a flashlight, check for restrictions in the INPUT tubing of valve #24.
F- 14.0.8 ISOLATE ACTUATOR BOARD / VALVE #24
Referring to Figure 25 (page 51), touch valve 24's (black) solenoid. Is it warm (i.e. energized)?
Yes The actuator board is okay. Replace valve #24.
No NOTE that VALVE #24 ONLY will be checked and proceed to page 78,
VALVES.
F- 14.0.9 CHECK VALVES #24 AND #26
a) Referring to Figure 35 A
CAREFULLY trace the blue wiring harness from valve #24's
AND #26's distribution board connectors to their (black)
solenoids to ASSURE they are NOT reversed. If reversed this
is the problem!
b) Referring to the Figure (below, right), inside the valve's female
distribution board connectors: Two checks:
1) ASSURE valve #24 is wired between pins 1 and 5 (top and
bottom). IMPORTANT! If okay, return valve #24 to distribution
board position labeled "V24" or "P24".
2) ASSURE valve #26 is wired between pins 2 and 5 (second from
the top and bottom). If okay, return valve #26 to distribution board
position labeled "V26" or "P26". Continue to part c.
IMPORTANT!
c) Open the shunt door (Bypass LED on).
Figure 25 – Valve #24
®
FILTER
®
filter?
(page 79) AND the Figure (right),
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 1 – Flow Errors In Dialysis Program
®
filter.
TROUBLESHOOTING
®
filter. If
Page 51