Clean- 3.2.2 Low Flow Pump Pressure/Isolate Valve #43 - Fresenius Medical Care 2008K2 Troubleshooting Manual

Yes Between 34 and 36 psi! Proceed to
No Remains less than 34 psi! ENSURING Heat Disinfect OR Rinse is running AND no leaks, see
parts a THROUGH c below:
a) Watch for one (1) minute to ENSURE a "No Water" alarm NEVER occurs!
b) Referring to
c) Can you adjust Valve #78 until the gauge cycles to a PEAK of between 34 and 36 psi?
Yes
No Pressure DOES NOT adjust. TWO (2) possible scenarios:
CLEAN- 3.2.2 LOW FLOW PUMP PRESSURE / ISOLATE VALVE #43
Per the Figures below
a)
output tubing extends towards the front of the machine!
b) Can you now adjust Valve #78 until gauge pressure cycles to between 34 psi and 36 psi about every
three (3) seconds (Yes of No)?
Yes Between 34 and 36 psi! This may indicate Valve #43 sticking open! A) Release the clamps!
B) ENSURING Valve #43's 'dot' is white, if pressure again DOES NOT cycle to more than
34 psi then TWO (2) possible bad components: 1) Bad Actuator-Test Board OR; 2) Bad
Valve #43.
No Remains less than 34 psi! Leaving the clamps in place, proceed to
number F-
Figure 32 (page 158), behind the Deair Pump, locate
Pressure between 34 and 36 psi! Allow two (2) minutes then, if a Flow Error
reoccurs, proceed to
1) IF (and ONLY if) pressure remains low: See procedure number
CLEAN- 3.2.2
2) IF pressure remains high: Valve #78 may be bad!
, DOUBLE clamp the OUTPUT tubing at Valve #43.
9.0.24.
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
page 175
, procedure number
page 175
, procedure number
(page 174).
CLEAN- 4.0.0.
Valve #78
.
CLEAN- 4.0.0.
NOTE:
Valve #43's
page 94
procedure
Page 174