Fresenius Medical Care 4008 E Technical Manual page 72

Error message
V39 Failure
Description
On opening V39 a difference in pressure (averaged value V39 open –
averaged value V39 closed) is detected on the dialysate pressure
transducer (182):
Standard system: < 50 mmHg
bibag system: < 20 mmHg
– V39 fails to open / close electrically or mechanically (possibly
hydraulic processing unit defective).
– It is impossible to re-adjust the degassing pump (P.C.B. LP 634).
– V91, V99, V100 fail to open electrically or mechanically.
– Dialysate pressure transducer (182) defective or not calibrated
(possibly hydraulic processing unit defective)
– Filter 210 (upstream of degassing pump) clogged.
Fresenius Medical Care 4008 4/08.03 (TM)
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