Wayne Dresser Vista 1 Series, Service Manual

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Part No. 920160 Rev A February 1997
A. To clear the error message it is necessary to either cycle the power to the Duplex Computer or enter
option 99, change the data to 3 and exit option programming. Even if the problem is corrected the fault
code will continue to be displayed until one of these procedures is executed.
TABLE 6-16. FAULT CODE 06.
Probable Cause Corrective Action
Illegal current sensed in
valve or relay circuit.
1. Solenoid drive board has
defective solid state relay. Replace solenoid drive board.
2. Computer is holding solid
state relay on. Replace computer assembly.
TABLE 6-17. FAULT CODE 08.
Probable Cause Corrective Action
Operational error. No-pulse time out limit exceeded. The dispenser was turned on but no product was
dispensed for more than the programmed time limit (see programming manual, part number 920205, Option 12).
TABLE 6-18. FAULT CODE 09.
A
Probable Cause Corrective Action
There were Fault Code 08 errors on five
consecutive sales.
1. Operational error. If the dispenser presently transitions to fast flow and displays
volume, verify that Option 12 is set to appropriate time
period. Refer to programming manual, part number 920205
2. Defective computer assembly or ISB
assembly. If problem occurs on all grades, replace computer assembly or
ISB assembly.
3. Defective pulser or ISB. If problem does not occur on all grades, check pulser and
replace as necessary or replace ISB assembly.
4. Defective wiring. Check wiring harness: ISB to pulsers and ISB to computer.
Replace necessary.