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NexStar Troubleshooting
HC-10 NEXSTAR
Electrical Troubleshooting Table
PROBLEM
POSSIBLE
CAUSE
DIAGNOSIS
SOLUTION
Crane moves
unexpectedly
Jammed
transmitter
button
Activate E-stop to see if
movement stops
Verify that nothing had depressed the
button as the time of movement. If
it was not depressed then replace
transmitter.
Short in harness Unplug coil to see if
movement stops.
Trace wire back to receiver. Verify
wire harness is not damaged. Check
connectors. They should be clear of
debris and water.
Base station
locked up
Turn off transmitter and
disconnect base station from
harness to see if movement
stops.
Turn off crane. Leave off for 2
minutes then turn power back on. If
the problem persists contact Auto
Crane technical support.
Controller locked
up
Disconnect controller to see
if movement stops.
Turn off crane. Leave off for 2
minutes then turn power back on. If
the problem persists, contact Auto
Crane technical support.
No function operates on
the crane.
Transmitter
turned off
Verify the power switch is in
the on postion.
Turn on transmitter
E-stop is active
Check LCD screen. If E007
error code is shown, then
E-stop is active
Pull E-stop to release. Turn
transmitter off then back on. Press
horn button to relink.
Crane turned off
Check crane status light. It
should be green.
Most cranes have a toggle switch to
turn on crane. This is usually located
in the cab or crane box.
Low battery
Check LCD screen. If E004
error code is shown then
transmitter is low on battery
life.
Charge or tether transmitter.
Receiver
communication
Left LED light on base station
should be solid green.
Turn off crane. Leave off for 2 minutes
then turn power back on. If problem
persists, contact Auto Crane technical
support.
Controller
communication
Status light on controller
should be blinking amber
only.
Turn off crane. Leave off for 2 minutes
then turn power back on. If problem
persists, contact Auto Crane technical
support.
Truck tilt alarm
active
Check screen for error code.
It should read “TRK TILT
ALARM”
Move vehicle to level ground. Once
vehicle is on level ground the alarm
will clear.
The following functions
are inoperable extend,
boom down, hoist up.
Anti-2-Block
Check screen for error code.
It should read “ANTI-2-
BLOCK”
Move load away from boom tip either
by retracting, hoisting down, or
booming up.
Crane overload
Check screen for error code.
It should read “100% LOAD
WARN”
Reduce load by either retracting,
booming up, or hoisting down to clear
alarm.