Verr = 0/Isolate Dialysate Sampling Option; Valve #30 And Valve #29 'Dots' Remaining White Longer Than 30 Seconds; Isolate Functional Board - Fresenius Medical Care 2008T Troubleshooting Manual

CLEAN- 5.2.0 VERR = 0 / ISOLATE DIALYSATE SAMPLING OPTION
a) Call debug screen 0 to locate Valve #29's and Valve #30's
'dots' (Figure right). NORMALLY when one turns white the
other turns blue almost immediately.
b) WITHOUT LOOKING AWAY, watch BOTH 'dots' for three
(3) FULL minutes to see if they EVER BOTH turn white, at
the SAME TIME, for LONGER THAN thirty (30) seconds!
TWO (2) possible scenarios:
1)
IF (and ONLY if) BOTH 'dots' turn WHITE, at the SAME TIME, for LONGER THAN thirty
(30) seconds! See procedure number
2)
IF BOTH dots, at the SAME TIME, are NEVER white LONGER THAN thirty (30) seconds!
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Proceed to
CLEAN- 5.2.1 VALVE #30 AND VALVE #29 'DOTS' REMAINING WHITE LONGER THAN 30 SECONDS
a) Place the machine into Service Program.
b) From Service Program → Options → Hardware Options does the No
box, next to Dialysate Sampling (Figure right), have a blue 'X' it?
Yes Dialysate Sampling = No! See procedure number
No a) Move the 'X' to the No box THEN press 'Enter'. The 'X' MUST turn blue!
b) If (and ONLY if) the Flow Error was occurring in Heat Disinfect return to it. If not place the
machine in RINSE!
c) Watching for five (5) FULL minutes, TWO (2) possible scenarios:
1) IF (and ONLY if) a Flow Error reoccurs: Return to
CLEAN-
2) IF a Flow Error does NOT reoccur: Problem solved! The Dialysate Sampling
Hardware Option was set to "Yes" accidently.
CLEAN- 5.2.2 ISOLATE FUNCTIONAL BOARD
When the Dialysate Sampling Hardware Option = "No" then having Valve #30's AND #29's 'dots' white at
the same time is UNLIKELY and, if you made and error, could result in unnecessary work! See parts a
THROUGH c below!
a) Place the machine in RINSE.
b) Call debug screen 0. If debug does not appear press 'Esc' then call screen 0.
c) WITHOUT LOOKING AWAY, watch Valve #30's AND #29's 'dots' again for four (4) FULL minutes. Do
they BOTH EVER turn WHITE again, at the SAME TIME, for more than thirty (30) seconds?
CLEAN- 5.2.1
, procedure number CLEAN-
5.0.0.
2008T Troubleshooting Guide
P/N 490292 Rev. A
(page 203).
5.3.0.
CLEAN- 5.2.2 (page 203).
page 202
, procedure number
Page 203