Fresenius Medical Care 2008K Troubleshooting Manual page 216

DAIR- 5.0.0 ISOLATE THE DEAERATION PUMP HEAD
a) IMPORTANT! Remove valve #39's clamps.
b) Referring Figure 84
deaeration pump head. Make sure to orient it correctly (see
Figure right).
c) Attempt Deaeration and Loading Pressure calibration.
IMPORTANT! Press the 'CONFIRM' key after each
adjustment of the [Pump Rate] data box value. Are you
able to achieve target deaeration pressure without
exceeding 215?
Yes Problem solved! The previous pump head is bad.
No See procedure number
good.
DAIR- 6.0.0 PRESSURE TEST HYDRO BLOCK/ HYDRO CHAMBER
This procedure pressurizes the Hydro Block/Hydro Chamber to locate a potential external water leak. A
clamp and the 274 resistor plug from the two-resistor OLC set, is required.
a) Referring to the Figure (right), at the top of the Hydro Block/Hydro
Chamber, tie wrap the segment of vent tubing that is attached to
the float.
b) Referring to the Figure (below, right), place the 274
the two-resistor OLC set, into the float's distribution position
labeled "FLOAT-SW" (3
simulates a closed float switch and opens incoming water valve
#41.
c) If the 274 plug is placed correctly vent tubing overflow will
occur within 30 seconds.
d) Clamp the vent tubing. This pressurizes the Block/Chamber to
approximately 20 psi (per incoming water regulator #61).
e) Check at the bottom and top of the Block/Chamber. Water leak
located?
Yes See procedure number
No a) Return the float to distribution board position
"FLOAT-SW" and unclamp the vent tubing.
b) Two possibilities: 1) Bad restrictor o-rings (P/N 579070, Hydro Block ONLY); 2) Bad
deaeration motor (Hydro Block and Hydro Chamber).
DAIR- 7.0.0 TROUBLESHOOT LEAKING HYDROBLOCK / HYDROCHAMBER
a) Return the float to distribution board position "FLOAT-SW" and unclamp the vent tubing.
b) Proceed accordingly:
Leaking from the BOTTOM (at or from valve #39): Three possibilities: 1) Tighten valve #29's
bracket; 2) Possible bad seal o-ring under valve #39; 3) Possible cracked valve #39 body.
OLD STYLE HYDRO BLOCK and the leak is from between the cap and Hydro Block: Three
possibilities: 1) Bad Hydro Block seal, P/N 565642 (Type 1 block) or P/N 676270 (Type 2 block);
2) Attempt installing the Hydro Block 'brace' (P/N M31138); 3) Bad Hydro Block
NEW STYLE HYDRO CHAMBER: Replace the chamber.
(page 212), swap in a known good
DAIR- 6.0.0
rd
connector cap from the left). This
DAIR- 7.0.0
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
(page 214). The previous pump head is probably
plug, from
(page 214).
Section 13 – Deaeration Problems
Page 214