P- 3.0.0 Machine Turns Itself Off - Fresenius Medical Care 2008K2 Troubleshooting Manual

P- 3.0.0 MACHINE TURNS ITSELF OFF

a) ENSURE the machine is OFF!
b) To avoid pulling cables loose GENTLY open the card cage.
c) Spread the card cage side panels open then gently drop the front panel down.
Per the Figure below
d)
CHECK #1: ENSURE the twenty-four (24) pin Front Panel Data Cable is plugged in properly between
the motherboard and the Front Panel Interface board. If not this may be the problem!
CHECK #2: ENSURE the sixteen (16) pin, Switch Matrix Cable is plugged in securely, pin for pin, at
the Front Panel Interface board. If not this may be the problem!
e) Press the Power button for two (2) seconds. In an attempt to isolate the Power button, TWO (2) possible
scenarios:
1) IF the machine REMAINS on (fan running) for at least thirty (30) seconds: See procedure
number P- 3.0.1
2) IF the machine turns on (fan running) but then turns itself off almost immediately: The most
likely cause of this is the front panel (Power button). Replace the front panel, HOWEVER, if the
problem reoccurs see OTHER POSSIBILITIES below:
OTHER POSSIBILITIES: Swap in the following components (see Component List below) one at a
time, with known good, and in between, if the machine remains on the last component swapped in is
the problem!
Component List:
1) Power Logic Board; 2) Power Logic Board cable; 3) Main Relay (K1)*. *To LOCATE K1 refer to
Figure 132 (page 651).
, TWO (2) checks:
(page 648).
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
Page 647