Gasboy Fuel Truck Controller - Manual (Page 73)

Fuel Truck Controller Manual 67
System is down
No
communication
OrCU LEDs are
not lit
Fuel Truck
Controller main
switch or truck’s
ignition switch are
off
Turn main switch/ truck’s
ignition switch on.
After power on, wait a few
seconds for the Timer
Relay to be connected
Defective fuses Check the fuses
1. External fuse (6 Amp)
2. Internal fuse harness
(Orpak P/N
180831918) which is
located between the
Terminal block (TB
43) the and Line Filter
Replace the fuses if blown
No 12 VDC/24
VDC feed to the
unit
Verify all input power
connections :
1. Check cabling from
Junction Box to the
unit
2. Verify that power
cable is properly
connected to unit
terminal block
3. Verify the Input &
Output voltage of the
DC2DC Converter
4. Is 12 VDC/24VDC
measured at the power
input terminal block?
Correct wiring problems if
12VDC/24VDC is not
measured
Table 4-1. Fuel Truck Controller Troubleshooting (Cont'd)
Fault Probable Cause Checks Corrective Action
System is down (Continued)