F- 7.7.20 Part 3 Good Flow/Part 4 Less Than 800 Ml/Restricted Valves #38 And #34 - Fresenius Medical Care 2008K2 Troubleshooting Manual

F- 7.7.20 PART 3 GOOD FLOW / PART 4 LESS THAN 800 ML / RESTRICTED VALVES #38 AND #34
Balancing Chamber Valve #38 and/or Valve #34 is not opening. Also, the Actuator Cable or the distribution
board may be bad. These procedures isolate between these components:
a) Turn the machine OFF!
b) The Flow Pump remains plugged into the Deaeration Pump's distribution board position!
Per the Figure below,
c)
d) Plug the new valve #38's connector into valve #31's distribution board position, "V31".
e) ENSURE the bucket with the RED dialyzer connector submersed in it is full!
f) Turn the machine on but
g) With "Select Program" up, measure drain flow, into the cylinder, for one (1) minute. More than 800 ml
every minute?
Yes More than 800 ml! Problem located! The previous valve #38 is bad!
No Less than 800 ml collected! See procedure number
.
Valve #38
replace
DO NOT
press any other keys!
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
with a known good!
F- 7.7.22 (page 87).
Page 86