Gasboy SERIES 9800Q, Diagnostic Manual

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GASBOY Series 9800Q
4-8 01/28/04
9800Q resets but does not dispense fuel – Dispenser.
Possible Cause
Checks Corrective Action
No 115/230VAC feed to
dispenser. Check if circuit breaker is off
or tripped.
Check if 115/230VAC is being
switched through circuit
breaker.
Check if 115/230VAC is
measured in junction box. Turn breaker on, if off.
Replace circuit breaker if
115/230VAC is not being
switched.
Correct wiring problems if
115/230VAC is not measured.
Defective CPU PCB. If the submersible pump is
powered by the optional solid
state relay mounted in the
pump head, follow this check,
otherwise skip to next check.
Using a DC voltmeter,
measure between ground
(CPU PCB test point TP2) and
screw terminal #4 (blue wire
for side 1, violet wire for side
2). The voltage should be
0VDC.
Using a DC voltmeter,
measure between neutral and
both sides of fuse F1 (side 1)
or F2 (side 2).
Using an AC voltmeter,
measure between screw
terminals 1 and 3 of terminal
SOL1 or SOL2.
Replace the CPU PCB if
+5VDC is measured between
ground and the blue or violet
wires.
NOTE: Changing the pulser
rate switches may require
replacement of your Weights
and Measures seal.
If 115/230VAC is not
measured on either side of the
fuses, replace the CPU PCB.
If 115/230VAC is measured on
one side of the fuse but not on
the other, replace the fuse.
NOTE: Changing the pulser
rate switches may require
replacement of your Weights
and Measures seal.
Replace the CPU PCB if
115/230VAC is not measured
between screw terminal 1 and
3.
NOTE: Changing the pulser
rate switches may require
replacement of your Weights
and Measures seal.
Defective pump relay. Using an AC voltmeter,
measure between AC neutral
and screw terminals #1 and #2
of the pump relay. Replace the relay if
115/230VAC is measured at
screw terminal #1 but not at
#2.
Defective submersible starter
relay. Measure across coil of starter
relay. Replace starter relay if
115/230VAC is measured
across coil, but relay does not
close.
Out of fuel Check fuel level in tank. Order fuel if tank empty.