Fresenius Medical Care 2008K Troubleshooting Manual page 79

CLEAN- 5.0.2 CHECK VERR
a) Referring to the Figure (right), UNPLUG the air sensor's connector from
distribution board position "AIR-SEN".
b) With the "AIR-SEN" position empty, allow 30 seconds.
c) Call debug screen 1, ASSURE FILACT = 1 (indicating the air sensor is
unplugged).
d) From debug screen 1, is VERR greater than 5?
Yes NOTE that Valve #43 is causing a Valve Error and proceed to
page 84, procedure number
No See procedure number
CLEAN- 5.0.3 CHECK VALVE #43 OPEN
a) Referring to the Figure (right), at the far end of the
drain tubing, if a 'Quick Connector' is present, an
adaptor IS required to allow flow through the
connector. Another option is to remove the 'Quick
Connector'.
IMPORTANT!
b) ASSURE Dialysate flow is ON
(Dialysate Flow on/off LED off).
c) ACCURATELY measure drain flow for one minute
into a 1000 ml graduated cylinder. 250 ml or
greater?
Yes See procedure number
No a) Before continuing, ASSURE Dialysate flow is ON (Dialysate Flow on/off LED off)! If (and
ONLY if) Flow is not ON repeat procedure number
b) Proceed to page 21, procedure number
CLEAN- 5.0.4 CHECK TRANSDUCERS
a) Referring to the Figure (right), using a flashlight, CAREFULLY
check the (blue) dialysate pressure transducer's (#9) body for
external (rust colored) leakage. Replace a leaking transducer
as this may be the problem!
b) Assuming all above procedures were performed correctly the
Troubleshooting Guide cannot locate an immediate problem.
If the problem continues:
BE VERY certain that the vent tubing is not
restricted in any way!
If the problem is occurring in Heat Disinfect, after
Pre-Rinse time has expired, and the external flow
indicator's 'bob' is NOT rising there may be an
intermittent loss of loading pressure or valve #29 is
bad (i.e. "Flow Recirc Error 1" message).
If the problem is occurring in Heat Disinfect and the external flow indicator's 'bob' IS continually
rising and falling the dialysate pressure transducer (#9) may be intermittent bad ("Flow Recirc Error
1" message).
If the problem is occurring in a program other than Heat Disinfect there may be an intermittent loss
of loading pressure ("Flow Inlet Error" message), valve #43 sticking closed intermittent, or an
intermittent hydraulic restriction.
VE- 2.0.0.
CLEAN- 5.0.3 (page 77).
CLEAN- 5.0.4 (page 77).
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 3 – Flow Errors In Cleaning Programs
CLEAN- 5.0.3
F- 3.4.0.
(page 77) from part b.
Page 77