15
Motor won’t
operate. LED
flashes green
with four
short pulses
repeating.
The
ESC has
failed
the self
test.
The ESC is
damaged.
Send the ESC to a Horizon
Hobby service center for
service.
Motor won’t
operate.
LED flashes
green with
five short
pulses
repeating.
Capaci-
tor temp
has
been ex-
ceeded
The ESC is
not getting
adequate
airflow.
Turn off the ESC and allow
it to cool before resuming
operation. Consider making
changes to improve airflow
to the ESC.
There is too
much load
on the drive
system for
the ESC to
support.
Consider changing the battery,
motor, gearing, or tires to
reduce the load on the ESC, or
change your driving habits to
reduce the load.
Motor
stutters at
start-up.
N/A
Poor wiring
connection
between the
ESC and
motor.
Verify all wiring
connections are solid and
well insulated, re-flow any
cold solder joints.
Excessive
drag on drive
system.
Check for parts rubbing, bent
shafts, rusted bearings, tight
gears, or anything that could
cause extra drag on the drive
system.
