2008T Troubleshooting Guide
P/N 490292 Rev. A
F- 7.0.3 ISOLATE ACTUATOR-TEST BOARD
a) To prevent damage, turn the machine OFF!
b) Swap in a known good* Actuator-Test Board**.
* Note: Known good = has been tested in another machine that is NEVER issuing Flow Errors! If a
known good Actuator-Test board is NOT used here AND the problem is a bad board you may
perform unnecessary, and time consuming, component replacement!
** To LOCATE the Actuator-Test board refer to the Figure (previous page).
c) Close the card cage!
d) Turn the machine on return to Dialysis Program (“Select Program” → ‘Dialysis’ → ‘Enter’)!
e) ENSURE a “No Water” alarm NEVER occurs!
f) Call debug screen 0. WITHOUT LOOKING AWAY, watch Flow Error for up to FIVE (5) minutes OR
until it EVER = 1, even if just once. TWO (2) possible scenarios:
1) IF (and ONLY if) Flow Error EVER = 1! See procedure number F- 7.0.4 (page 73) to test for a
restricted Balancing Chamber valve!
2) IF Flow Error ALWAYS = 0! Problem solved! The previous Actuator-Test Board may be bad.
LEFT BLANK INTENTIONALLY
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