P- B.0.0 Isolate Power Systems - Fresenius Medical Care 2008K2 Troubleshooting Manual

P- B.0.0 ISOLATE POWER SYSTEMS

a) Figure right, ENSURE the
board position from the left, "x4, PH-P", IS
VACANT! If NOT, this may be the problem!
b) To avoid pulling cables loose, GENTLY open
the card cage.
c) Per Figure 113A below, at the rear of the card cage, ENSURE the 24V POWER harness is plugged in
securely with the orange wire to the left. If not, this may be the problem!
d) Per Figure 113B below, check the power plug, cord and strain relief for signs of burning or other
damage. Replace a damaged plug, cord or strain relief!
e) With the machine on i.e. message displayed on the screen ENSURE the fan is running i.e. air from the
power supply rear vents. If not air from the vents the fans is bad and this allows excessive heat which
causes electronic failures!
page 599
f) Proceed to
rd
3
distribution
, procedure number P- E.0.0
Figure 113A – 24V POWER Harness
Figure 113B – Power Supply Rear View
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
Page 597