Section 22 - "Wd: Fail Long Pulse" Or "Wd: Fail Short Pulse - Fresenius Medical Care 2008K2 Troubleshooting Manual

SECTION 22 - "WD: FAIL LONG PULSE" OR "WD: FAIL SHORT PULSE"

Turn the machine OFF for two (2) seconds, then back on. TWO (2) possible scenarios 1) or 2) below:
1)
IF "WD: Fail Long Pulse" OR "WD: Fail Short Pulse" does NOT reoccur: Turn the machine off
and on ten (10) times allowing twenty (20) seconds in between as the problem may be intermittent! If
"WD" alarm reoccurs see scenario #2.
2)
IF "WD: Fail Long Pulse" OR "WD: Fail Short Pulse" REOCCURS: Perform parts a THROUGH d
below:
a) Figure below, being
IMPORTANT! Set your CALIBRATED volt meter DC voltage (V
b)
Connect the meter's ground (black) lead to chassis ground (see
c)
page 4)).
ENSURING
d)
see procedure number
CAREFUL NOT
to
the "WD: Fail Long Pulse" OR "WD: Fail Short Pulse" banner is on the screen,
WD- 1.0.0 (page 571).
LEFT BLANK INTENTIONALLY
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
pull the 24V Power Harness loose, open the card cage!
)
DC
Figure 2,
Page 570