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Arrow Board Operators Manual V1.2
Page 9 of 12
Troubleshooting Guide
Possible errors the user may encounter:
Error Description:
Action:
“Low Battery Voltage”
The battery is low and the unit has
shut down due to insufficient power
Recharge the battery or check the
wiring from the battery to the
controller for poor connections.
Replace the battery if necessary.
“Lamp Fault”
One or more lamps have failed.
Visually check operation of lamps,
check lamp connections, repair wiring
or replace any that have failed.
“VDD Low”
Indicates a non-user serviceable error
with the AC4S controller.
Return for repair or exchange.
“VDD High”
Indicates a non-user serviceable error
with the AC4S controller.
Return for repair or exchange.