Gasboy 1000 Series FMS Diagnostic Manual - Manual (Page 100)

Troubleshooting
03/07/03 6-15 15
PUMP/DISPENSER WILL NOT RESET OR RUN WHEN AUTHORIZED
MANUAL: Inside the Series 1000 post, turn the pump override switch to the MANUAL
position. Turn the pump handle on. If the pump/dispenser resets and runs, go to
AUTOMATIC.
Possible Cause Checks Corrective Action
No AC feed to the
pump/dispenser. Is the breaker off or tripped?
Is 115 (230) VAC being
switched through breaker?
Is 115VAC measured at the
input side of the pump power
terminal block?
Turn breaker on, if off.
Replace breaker if 115 (230)
VAC is not being switched.
Repair wiring problem from
electric panel to Series 1000 if
no input measured.
Defective pump override
switch. Is 115 VAC measured at the
output side of the pump power
terminal block? Replace the pump override
switch (or entire relay module)
if no output is measured.
Defective electric reset Open AC junction box in
pump/dispenser. Is 115VAC
measured at input to reset
motor? If 115VAC is measured,
replace or repair reset.
If 115VAC is not measured at
reset input, but is measured at
output side of relay module
terminal block, repair wiring
from Series 1000 to reset.
AUTOMATIC: Inside the Series 1000 post, turn the pump override switch to the AUTO
position.
Possible Cause Checks Corrective Action
PC PCB or MPU PCB is not
sending the signal to turn relay
on, or PC to MPU ribbon cable
assy. is not properly
transferring signals between
PC and MPU PCB's. Turn the pump override switch
to AUTO. Authorize the pump.
Does the relay LED on the PC
PCB light? Replace the PC PCB if relay
LED doesn't light. Replace the
MPU PCB if replacing the PC
PCB didn't cause the relay
LED to light.
Replace the PC to MPU ribbon
cable assembly if replacing the
PCB's did not cause the relay
LED to light.
Blown 12VDC fuse Remove the 12VDC fuse and
measure it with an ohmmeter. Replace the 12VDC fuse if it is
blown.
(Continued)