Isolate Incoming Water Flow; Isolate Potential Air Lock - Fresenius Medical Care 2008T Troubleshooting Manual

CLEAN- 2.1.0 ISOLATE INCOMING WATER FLOW
a) Figure right, place the
TWO-RESISTOR SET
distribution board position, "X5, FLOAT-SW".
b) Allow forty (40) seconds OR until flow from the
Vent Tubing occurs indicating hydrochambers
A through C are full!
c) MEASURE from the Vent Tubing for ONE (1) minute. More than eight hundred (800) ml collected?
Yes More than 800 ml! See procedure number
No Nowhere near 800 ml! Call debug screen 0. Figure right, is
Valve #41's 'dot' BLUE?
Yes
No 'Dot' = White!
CLEAN- 2.1.1 ISOLATE POTENTIAL AIR LOCK
Figure right
a) , return the float's connector to distribution
board position, "X5, FLOAT-SW".
60 ml syringe
b) Again attach the
Pump's clear Input tubing.
c) PULL on the plunger. If Restrictor #48 is still open you will
feel very little resistance and be able to pull the plunger to
the end of the barrel!
d) Remove the syringe and MEASURE flow from the tubing for one (1) minute. If less than 130 ml is
collected repeat parts b through d up to
you MEASURE more than 130 ml every minute?
Yes More than 130 ml! See procedure number
No Nowhere near 130 ml! TWO (2) possible bad components: 1) Bad Float Switch* OR; 2) Bad
Hydrochamber.
* To LOCATE the Float Switch refer to
274 Ω
plug, from the
, into the float's
'Dot' = Blue! A) Reattach the Deaeration Pump's input tubing; B) Proceed to
page 152
, SECTION 2 – NO WATER ALARM
a) BE VERY SURE the
RESISTOR SET, is placed PROPERLY in distribution board
position, "FLOAT-SW"! If not, repeat procedure number
CLEAN- 2.1.0
b) FIVE (5) possible bad components: 1) Bad Actuator-Test
Board OR; 2) Bad Sensor Board cable OR; 3) Bad Sensor
Board OR; 4) Bad distribution board OR; 5) Bad motherboard
to the Deaeration
TEN (10) TIMES
2008T Troubleshooting Guide
P/N 490292 Rev. A
CLEAN- 2.1.1 (page 187).
274 Ω
(page 187)!
! After no less than ten (10) attempts do
CLEAN- 2.1.2 (page 188).
Figure 28 (page 140).
resistor plug, from the TWO-
Page 187