Check Water Systems - Fresenius Medical Care 2008T Troubleshooting Manual

NW- 5.1.0 CHECK WATER SYSTEMS
a) Turn the water OFF and reattach the tubing.
b) Figure right, a previous procedure may have placed the
274 Ω
resistor plug in the Float's distribution board position
"X5- FLOAT-SW". If so, return the Float's connector.
c) Turn the machine OFF!
d) ENSURE the vent tubing is NOT kinked anywhere! If the
short segment going back to the Float is not routed over
the top this may be the problem!
e) Figure right, remove the Heater and check its port into the
top of the hydrochamber for heat damage (i.e. melting). If
(and ONLY if) damage is located replace the
hydrochamber.
f) Reinstall the Heater!
IMPORTANT!
g) Turn the water ON!
h) Turn the machine on and return to the Program where the "No Water" alarm occurred.
i) If the "No Water" alarm reoccurs, either inadequate incoming water flow (less than 1000 ml per minute
OR TWO (2) possible bad components: 1) (Intermittent) bad Float* Switch OR; 2) Bad Actuator-Test
Board
*
To LOCATE the Float Switch refer to Figure 28 (page 140).
LEFT BLANK INTENTIONALLY
2008T Troubleshooting Guide
P/N 490292 Rev. A
Page 165