Gasboy TopKAT PLUS - Manual (Page 73)

MDE-5013C TopKAT™ PLUS Installation Manual · February 2015 Page 5-3
Troubleshooting Maintenance
Mechanic pump does not refuel
Pump does not supply fuel Device is not allowed to
refuel 1 Open the pump from SiteOmat status
screen.
2 Ensure that the vehicle/device has no
limitation in FHO setup.
Enable the device to refuel.
Pump setup is incorrect Check pump setup:
• Pump Server
• Buses
• Prices
• Pulse rate
1 Set pump parameters.
2 Save and reload.
3 Check again.
Faulty connection to pump Check control cables from TopKAT PLUS
to pump. Make good electrical connection.
8-port failure Ensure that power LED is lit. If it is off, use a voltmeter to check
power supply to the unit: If power
supply is OK, then replace the 8-port
board. If power supply is faulty,
replace the power supply.
Ensure that control red LED on MPI-C
board is lit. 1 Replace MPI-C board.
2 Replace 8-port.
Pump malfunction Turn the external bypass switch on, lift the
nozzle, and check that the pump supplies
fuel. If the problem persists:
1 Check Handle-On switch.
2 Repair pump.
Handle-on switch problem Is the In Use red LED in MPI-C board lit
when nozzle is lifted? 1 Check in use cable and repair, if
required.
2 Check terminal wires and repair, if
required.
3 Check the in ise switch in the pump
and repair, if required.
Pump is authorized but call
state is not detected (nozzle
icon in SiteOmat status
screen does not display Call
state) Faulty in use switch in
pump Power off the pump using a ohmmeter,
measure the switch in on and off states. Replace pump switch in cases where
no short was detected.
Faulty connections Check In Use cable
Check In Use terminal block connections.
Make good electrical connection if
faulty one exists.
Faulty in use terminal block Replace in use terminal block.
Faulty MPI-C board Ensure that the call red LED is lit when
nozzle is lifted. If the red LED is not lit, replace 
MPI-C board. If the LED is lit, the
problem is external to the controller.
Faulty 8-port Replace 8-port.
Pump is authorized, pump
motor is running, but no fuel
is supplied Faulty solenoid valve
Faulty pump
Does the pump solenoid valve produce a
clicking sound? 1 Replace valve.
2 Repair pump.
Fault Probable Cause Checks Corrective Action