Troubleshooting 8.2 Islander Prime
Page 86 MDE-5411A ForeHB Islander Prime Installation Manual · October 2018
8.2.2 Mechanical Pump Does Not Fuel
The following table describes the Islander Prime troubleshooting procedure and appropriate
corrective actions when the mechanical pump does not fuel (see Table 24):
Table 24: Mechanical Pump Does Not Fuel
Fault Probable Cause Checks Corrective Action
Pump does not supply
fuel.
Pump setup is
in
correct
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 Isla
nder Prime to
pump
.
Make a secure electrical connection.
LAN to 3x 485
CommV
erter
Verify 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 LAN to 3x 485
CommVerter board. If power supply is
faulty, replace the power supply.
Verify that the Control
red LED o
n MPI-C
board is lit.
1 Replace MPI-C board.
1 Replace LAN to 3x 485 CommVerter.
Pump malfunction Turn the Islander Prime
bypa
ss 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
prob
lem
Is the In Use red LED
MPI-C board lit when
nozzle is lifted?
1 Check In Use cable and repair (if
necessary).
2 Check terminal wires and repair (if
necessar
y).
3 Check In Use switch in the pump and
rep
air (if necessary).
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;
then, using
an
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
conn
ections.
Make good electrical connection if faulty
one exists.
Faulty In Use
terminal block
Replace In-use terminal block.
Faulty MPI-C
board
Verify that the Call red
LED is lit when nozzle
is lifted.
• If the red LED is not lit, replace the
MPI-C board.
• If the LED is lit, the problem is
external to the
controller.
Faulty LAN to 3x
485 Co
mmVerter
Replace the LAN to 3x 485 CommVerter.
Pump is authorized,
pump motor
is running,
but no fuel is supplied.
•Faulty
sol
enoid valve
• Faulty pump
Does the pump
solenoid valve pr
oduce
a clicking sound?
• Replace valve
• Repair pump