Gasboy SERIES 9800Q, Diagnostic Manual

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Troubleshooting
01/28/04 4-3
9800Q won’t activate in standalone mode. When the pump handle is thrown, the displays
do not go through reset sequence.
Possible Cause
Checks Corrective Action
System controlling 9800Q not
functioning properly. If the 9800Q is controlled by a
fuel management system
other than CFN, verify proper
operation of system. Repair fuel management
system if necessary. Refer to
fuel management system
manuals for further assistance.
AUTH signal not getting to
CPU PCB. If the 9800Q is controlled by a
fuel management system
other than CFN, an AC
authorization (AUTH) signal is
required for pump activation.
On the 9800Q CPU PCB,
check if L1 (side 1) or L5 (side
2) light when the fuel system
tries to activate the pump. f L1 and/or L5 don’t light, use
an AC voltmeter to measure
between pins 1 and 6 of
connectors P1 (side 1) and P2
(side 2) of the CPU PCB. If
115/230 VAC is measured but
L1 and/or L5 don’t light,
replace the CPU PCB. If
115/230VAC is not measured,
trace the wiring back to the
fuel management system and
correct the problem.
Mode switch on CPU PCB set
incorrectly. Check switch SW1-2 on CPU
PCB. Close switch, if open. Turn
power off, then on after
changing switch settings.
9800Q is running on battery
power (Skip this section if your
9800Q is not equipped with a
battery back-up power supply). Check if micro circuit breaker
is off or tripped.
Check if 115/230VAC is being
switched through circuit
breaker.
Check if 115/230VAC is
measured in 9800Q AC
junction box.
Check the MICRO power
switch.
Check the fuse in the power
bracket. Turn breaker on, if off.
Replace circuit breaker if
115/230VAC is not being
switched.
Correct wiring problems if
115/230VAC is not measured.
Turn on, if off.
Replace fuse if blown.
Defective handle switch. Using a DC voltmeter,
measure between the
common (COM) and normally
open (N.O.) terminals on the
handle switch. +5VDC should
be measured. Turn the handle
on. 0VDC should be
measured. Replace the handle switch if
proper voltages are not
measured.
Defective AC power fail
circuitry. Using a DC voltmeter,
measure between ground
(TP2) and pin 3 of connector
P10 (violet wire) on the CPU
PCB. Replace the power supply
PCB if +5VDC is not
measured between GND and
the violet wire.
continued