Flowchart A-14. Displays Are Blank - Wayne Vista Series Service

Sale display and unit
computer. Replace
Replace the display.
86
Part No. 917543 Rev. A
price displays are
blank.
Make sure control
power circuit
breaker is ON and
power is present.
Check F1 and F3
fuses on the
if defective.
Is there
110VAC between
NO
pins 1 and 2 on the
J5 connector?
YES
Is the
problem YES
corrected?
NO
Replace the
computer.
END

FLOWCHART A-14. DISPLAYS ARE BLANK

Is 110VAC
present in
NO
junction box
terminal 1?
YES
Repair/replace
defective internal
dispenser wiring.
Correct station wiring.
November 1992