FloTech FT204P Mode D'emploi page 20

FloTech Programmable Retain / Overfill Monitor
3. If TB4 has a wire connection, follow the cable to the
switch. This switch is typically connected to a vapor
recovery interlock or to a brake air lines interlock.
Activate the switch and see if the AUX green LED is lit.
If not repair the air switch. If the air switch appears OK
then check the monitor by installing a jumper wire to
force the AUX LED on. If the Aux LED can‟t be forced
on then replace the monitor.
Monitor's PERMIT and AUX LEDs are ON, all
sensor LEDs are OFF, but the rack will not
load.
This condition usually indicates:
 the sensors and sensor wiring are functioning.
 the monitor has the proper power.
 the AUX connections are OK.
 Bad ground bolt (if equipped).
 Socket output failed.
The problem usually lies in the monitor output, socket wiring or
the socket itself. To troubleshoot this condition, use the
FloTech FT520 Optic System Tester or a Scully Universal
Tester
1. Check the system by connecting a FloTech FT520 Optic
System Tester or a Scully Universal Tester to the Socket
output. Check for a good light on all compartments.
2. If not permissive then check all wiring connections, poor
crimp connections, or worn J slots on socket faceplate.
NOTE: The ground hog bolt can fail or have a bad
ground connection and not allow the tank to load. This
is an independent system not part of the overfill system
and is prone to problems.
3. If wiring connections check OK, test TB3 on the
monitor using the FT520 Optic System Tester. The
FT520 Optic System Tester is the only positive way to
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