Nw- 1.0.10 "No Water" Alarm Reoccurs; Nw- 1.0.12 Gauge In And Water On/Isolate Inlet Pressure - Fresenius Medical Care 2008K2 Troubleshooting Manual

NW- 1.0.10 "NO WATER" ALARM REOCCURS

a) Leaving the machine on, turn the WATER OFF!
b) A psi pressure gauge is required. ENSURE it reads 0 psi before installing it!
c) Figure below, tee the gauge into Inlet Pressure Regulator #61.
d) Tie wrap both sides of the gauge tubing to prevent leaks and false readings!
TURN THE WATER ON!
e)
f) See procedure number
NW- 1.0.12 GAUGE IN AND WATER ON / ISOLATE INLET PRESSURE
Call debug screen 0, to watch Valve #41's 'dot' for forty-five (45) seconds. TWO (2) possible scenarios:
1)
IF (and ONLY if) Valve #41's 'dot' is NEVER white (ALWAYS blue): If ABSOLUTELY SURE the
water is ON and the 'dot' still is NEVER white proceed to
2) IF Valve #41's 'dot' is remaining white OR cycles between white and blue! TWO (2) possible
scenarios below:
Scenario #1: IF (and ONLY if) REMAINING white: If (and ONLY if) a "No Water" alarm NEVER
reoccurs whatever was causing the problem is no longer present! If a "No Water"
alarm does reoccur see Scenario #2 below.
Scenario #2: IF cycling between white and blue: Gauge pressure should cycle between a PEAK of
more than 18 psi and to NEVER LESS than 8 psi. WITHOUT LOOKING AWAY, watch
the gauge AND the screen two (2) FULL minutes preferably until a "No Water" alarm
reoccurs. TWO (2) possible scenarios 1) or 2) next page:
NW- 1.0.12 (page 146).
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
page 148,
procedure number NW- 2.0.0.
Page 146