Hydrochamber/Float Switch #5/Heater View - Fresenius Medical Care 2008K2 Troubleshooting Manual

Yes Peak between 23 and 27 psi! Call debug screen 0 to watch Flow Error for three (3)
minutes. If it remains = 0 perform an ACID CLEAN. If (and ONLY if) the Loading Pressure
problem reoccurs in the near future FIVE (intermittent) possible bad components (see
Component List below). Swap in each, one at a time, and in between check if loading
pressure of between 23 and 27 psi can be achieved.
No Peak IS NOT between 23 and 27 psi! FIVE (5) possible bad components (see Component
List below). Swap in each, one at a time, and in between, check if Loading Pressure PEAKS
to between 23 and 27 psi can be achieved indicating the last component swapped in was the
problem.
COMPONENT LIST:
1) Deaeration Pump head*; 2) Deaeration Pump motor*; 3) Loading Pressure Valve #65**;
4) Float switch (see Figure below); 5) Hydrochamber (see Figure below).
* To LOCATE these components refer to
** Attempt to calibrate the new Valve #65 to achieve a peak loading pressure of between 23
and 25 psi
Figure 28 – Hydrochamber / Float Switch #5 / Heater
Figure 6
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
(page 19)
Page 129