Troubleshooting - Lectrotab ALC-1D Manual

Error Code:
If the ALC control senses a fault, an LED indicator will show a quick repetitive flash. See display below for
flashing LED error code.
Quick flashing LED indicates
trim tab actuators are not
connected properly (see wiring
diagram)
Quick flashing LED
indicates short circuit on
supply connection 1 and 2
Quick flashing LED
indicates short circuit to
ground
LEDs do not light:
1) If boat is off plane or stopped for several minutes, the ALC display enters a normal power off mode to
prevent discharging the battery. Operating the boat and pressing the display buttons will bring the display
back to fully operational mode.
2) Connection of red wire to the ignition key switch or accessory switch must be switched to ON and make
sure battery selector switch is turned on. Measure +12vdc or +24vdc between battery negative and
primary station keypad red wire.
3) Measure voltage at terminal 1 (green plug) (+12 or +24vdc) and terminal 2 (battery negative) for proper
voltage (see wiring diagram). Replace fuse or repair poor connection if battery voltage is not measured at
terminals 1 and 2. If the supply voltage is low due to a poor connection, the ALC will restart and flash all
the LEDs twice.
ALC-1D/-2D Troubleshooting
Specifications
11
Quick flashing LED indicates
incorrect mounting angle (see
control mounting instructions)
Quick flashing LED indicates
incorrect mounting angle (see
control mounting instructions)