158
Troubleshooting
P/N: SM-ACP215-01-EN(AB)
Haemonetics
®
ACP-215
®
Service Manual
12
WHITE VALVE
POSITION FAULT
White valve position
switch indicates that
valve did not transition.
1. Use the valve test in diagnostics to
manually transition valves and monitor
valve and switch response. The valve
position switch is normally closed, and
when open, +10 VDC can be measured
on the black wire terminal.
2. Swap valve connections at top deck
distribution PCB to isolate problem to
valve or circuit.
3. If valve does not move, refer to
system schematic and check, repair, or
replace all connections associated with
the valve drive circuit.
4. Check all pneumatic and electrical
connections on valve compressor.
5. Check pneumatic pressure.
6. If pressure is low and valve
compressor does not turn on, replace
valve compressor and replace top
distribution board.
7. Replace valve, driver PCB, or CPU
PCB. Using Utilities, calibrate all
components under A/D, and centrifuge,
and configure the language. Reset
protocol parameters (
MODIFY
PROGRAM
) if parameters were
different from default values.
8. If valve does move but is not
recognized, refer to system schematic
and check, repair, or replace all
connections associated with the valve
position switch or replace the valve.
9. Replace driver or CPU PCB. Using
Utilities, calibrate all components under
A/D, and centrifuge, and configure the
language. Reset protocol parameters
(
MODIFY
PROGRAM
) if parameters
were different from default values.
Table 9, CPU error messages
Cod
e
Text Message
Description
Suggested Resolution
