8 Probe Troubleshooting
8-2
N/A
Fuel level reading equals
full tank volume even
though fuel level is below
full volume.
Fuel float stuck in riser. Remove float from riser and install
split-ring collar (P/N 576008-617) on
probe shaft below riser tube to pre-
vent a recurrence of the problem.
Probe reading on console
display disappears or
appears intermittently.
Defective probe cable Replace cable.
Ghost Deliveries. Splices in wiring See Note 1.
Defective field wiring Check for open or shorted wires, or
absence of epoxy seal kits around
field connections. Refer to “Field
Troubleshooting Probe-Out Alarms”
procedure below for more details.
Other control wires in probe
conduit
See Note 1.
Conduit not grounded properly See Note 1.
Non-metallic conduit present See Note 1.
Variable speed submersible
pump in use
See Note 1.
Defective barrier board Replace barrier board.
Defective probe Replace probe.
Fuel temperature reading
is incorrect
Defective thermal sensor in
probe.
Replace probe.
Leak Test Invalid - Recent
delivery
A delivery occurred during the
leak detect test or within 8
hours prior to the console’s
entering the leak detect mode.
Retest, waiting longer than 8 hours
after last delivery.
Leak Test Invalid - Tank
level low
Fluid level is too low. Insuffi-
cient product in tank for satis-
factory thermal compensation.
Fill tank to half full or more.
Leak Test Invalid - First
hour error
Consult factory. Consult factory.
Leak Test Invalid - Last
hour error
Consult factory. Consult factory.
Table 8-1. Mag Probe Troubleshooting
Alarm Problem Probable Cause Corrective Procedure
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