F- 2.8.0 Isolate Flow Error; F- 2.8.1 Flow Error Always = 0; F- 2.9.0 Qdl Remaining Between 720 And 880/Isolate For A Leaking Bc Valve - Fresenius Medical Care 2008K2 Troubleshooting Manual

F- 2.8.0 ISOLATE FLOW ERROR

a) Call debug screen 0 to see Flow Error. If EVER = 1, even if
just once, a Flow Error is present!
b) WITHOUT LOOKING AWAY, watch for two (2) minutes OR until Flow Error EVER = 1. TWO (2)
possible scenarios:
1) IF (and ONLY if) Flow Error EVER = 1 even if just once: A problem is indicated in the 'bypass
circuit'! Proceed to
2) IF Flow Error ALWAYS = 0 (NEVER = 1): See procedure number

F- 2.8.1 FLOW ERROR ALWAYS = 0

a) Press and hold the "1" key for five
(5) seconds!
Allow forty-five (45) seconds
b)
BEFORE continuing to part
c!
c) Call debug screen 5.
QdS
d) (Figure right) REMAINS = 1 if
flow is stable. Watch it for one (1)
minute. TWO (2) possible
scenarios:
1)
If QdS is ALWAYS = 1!
(page 34).
2)
IF QdS is OR becomes = 0!
47
, procedure number
F- 2.9.0 Qdl REMAINING BETWEEN 720 AND 880 / ISOLATE FOR A LEAKING BC VALVE
a) Call debug screen 4 and locate PDIA AND ADIA (Figure right).
b) BOTH should be between 2.0 and 8.5 AND remaining STABLE (i.e. does
NOT change more than 0.5 per minute). WITHOUT LOOKING AWAY,
watch for two (2) minutes! TWO (2) possible scenarios:
1) IF (and ONLY if) PDIA AND ADIA
page 36
, procedure number
2) IF PDIA AND / OR ADIA IS NOT remaining between 2.0 and 8.5 AND / OR is NOT stable: See
parts a THROUGH f next page:
page 47
, procedure number
Leaving the shunt door OPEN, see procedure number
A problem is indicated in the 'bypass' circuit! Proceed to
F- 5.0.0.
REMAINING
F- 2.9.2.
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
F- 5.0.0.
F- 2.8.1
between 2.0 and 8.5 AND stable: Proceed to
(page 34).
F- 2.9.0
page
Page 34