Wayne Dresser Vista 1 Series, Service Manual

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Part No. 920160 Rev A February 1997
3.4.1. Fault Codes
The fault codes generated by the Duplex II Computer are assigned a “status.”
There are four types or Status as follows: Error codes, Hydraulic codes, Service
codes and Disable codes. The definitions of each of these types are as follows:
• Error codes (Status 1) shut down the entire side of the dispenser until the
error is reset by cycling power to the computer or entering Option 99. (See
the Option Programming manual, part number 920205, for specific
programming functions.)
• Hydraulic codes (Status 2) shut down the nozzle position which was
affected by the error until the computer is reset by cycling power or by
entering Option 99.
• Service codes (Status 3) are recorded and displayed in Option 01, but do
not affect the operation of the dispenser.
• Disable codes (Status 4) are similar to service codes in that they do not affect the
operation of the dispenser; however, they are not recorded or displayed in
Option 01.
Disable Codes are Service Codes that have been disabled by the computer program or
by the Option 98 setting in option programming.
Note: Error and Hydraulic fault codes that have not been cleared via Option 99 or a power
cycle will continue to be displayed until the problem which caused them is remedied.
Error and Hydraulic codes are displayed every time the affected portion of the
dispenser is restarted by removing the nozzle from the nozzle boot and lifting a
lever or by pressing a start, grade select or cash/credit switch.
The format of the displayed fault codes is shown in Figure 3-3., Figure 3-4. and
Figure 3-5. The fault codes, their status, and descriptions are shown in
Table 3-1. When more than one number is shown in the Fault Code Status
column, it indicates that the Fault Code can be assigned either status. An
asterisk(*) next to a number in this column indicates the default status.
3.5. FAULT REPORTING
When the computer detects a fault, the sale currently in progress may be shut down.
Depending on the fault code status, the sale may not be shut down and, on the next reset, a
fault code will be displayed. The fault code is displayed only for the affected side of the
dispenser. In addition to the displayed fault code, a transaction counter number is also
displayed. The transaction counter number can be used as a troubleshooting aid to deter-
mine on which sale an error occurred and if that particular error is related to the reported
problem. This fault code, along with the new transaction counter number, will have a
format similar to that in Figure 3-3.