Dvf- 1.0.0 Isolate Verr/Special Valve Error #38; Dvf- 1.1.0 Pin 43 More Than 40 Ohms - Fresenius Medical Care 2008K2 Troubleshooting Manual

DVF- 1.0.0 ISOLATE VERR / SPECIAL VALVE ERROR #38
a) ENSURING the machine is OFF, to avoid pulling cables loose, GENTLY open the card cage!
IMPORTANT! Set your CALIBRATED volt meter to RESISTANCE (Ω).
b)
Connect the meter's black lead to chassis ground (see
c)
d) Figure below, at the top of the Actuator-Test Board locate its 50-pin P2 connector. ENSURE the
ACTUATOR ribbon cable is plugged in securely here! If not this may be the problem!
e) Figure above, measure from the rear side of P2 at
f) Figure right, reading the meter's numeric AND
UNITS display, more than 40.0
MORE THAN 40 Ω! See procedure number
Yes
LESS THAN 40 Ω! Proceed to
No

DVF- 1.1.0 PIN 43 MORE THAN 40 OHMS

a) Close the card cage for now.
IMPORTANT! Open the shunt door and LEAVE IT OPEN till instructed otherwise!
b)
c) Turn the machine on AND return to Dialysis Program ("Select Program" → 'Dialysis' → 'CONFIRM')!
d) From the Home screen, set [Dialysate Flow] to 800 ml/min and press 'CONFIRM'.
e) Allowing up to five (5) minutes, Figure right, does a
"Dial Valve Failure" OR "Act Byp Valve Fail" alarm
banner OCCUR?
pin #43.
Ω
?
page 660
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
Figure 2
Should be more than 40.0
DVF- 1.1.0 (page 653).
, procedure number DVF- 5.0.0
(page 4)).
Ω
!
Page 653