7
TROUBLESHOOTING
Trouble(s)
Possible Causes
Solution
The ESC was unable to start the status LED, the
motor, and the cooling fan after it was powered
on.
1. No power was supplied to the ESC.
2. The ESC switch was damaged.
1. Check if all ESC & battery connectors
have been well soldered or firmly
connected.
2. Replace the broken switch.
The ESC was unable to start the motor after it
was powered on, but the motor emitted a short,
double beep (BB, BB, BB...) that repeats with
GREEN LED on the ESC blinked. (The interval
between two beeps was 1 second.)
The battery voltage was beyond the normal
operating voltage range of the ESC.
Check the battery voltage.
After the ESC was powered on and finished
LiPo cells detection (the GREEN LED flashed N
times), and then the RED LED flashed rapidly.
1. The ESC didn’t detect any throttle signal.
2. The neutral throttle value stored on your
ESC is different from the value stored on the
transmitter.
1. Check if the throttle wire is reversely
plugged in or in the wrong channel
and if the transmitter is turned on.
2. Re-calibrate the throttle range after
you release the throttle trigger to the
neutral position.
The vehicle ran backward when you pulled the
throttle trigger towards you.
1. The (ESC-to-motor) wiring order was
incorrect.
2. Your chassis is different from popular chassis.
Switch any 2 of the 3 motor wires (ESC-
to-motor).
The motor suddenly stopped or significantly
reduced the output in operation.
1. The receiver was influenced by some foreign
interference.
2. The ESC entered the battery LVC (Low Voltage
Cutoff) protection.
3. The ESC entered the thermal (over-heat)
protection.
1. Check all devices and try to find out
all possible causes, and check the
transmitter’s battery voltage.
2. The RED LED keeps flashing indicating
the LVC protection is activated, please
replace your pack.
3. The GREEN LED keeps flashing
indicating the thermal protection is
activated, please let your ESC cool
down before using it again.
The motor stuttered but couldn’t start.
1. Some soldering between the motor and the
ESC was not good.
2. The ESC was damaged (some MOSFETs were
burnt).
1. Check all soldering points, please re-
solder if necessary.
2. Contact the distributor for repair or
other customer services.
The vehicle run forward (and brake), but could
not reverse.
1. The throttle neutral position on your
transmitter was actually in the braking zone.
2. Set the “Running Mode” improperly. 3. The
ESC was damaged.
1. Re-calibrate the throttle neutral
position. No LED on the ESC will come
on when the throttle trigger is at the
neutral position.
2. Set the “running mode” to “Forward/
Reverse with Brake”.
3. Contact the distributor for repair or
other customer services.
The car run forward/backward slowly when the
throttle trigger is at the neutral position.
1. The neutral position on the transmitter was
not stable, so signals were not stable either.
2. The ESC calibration was not proper.
1. Change your transmitter
2. Re-calibrate the throttle range or
fine tune the neutral position on the
transmitter.
1. The LCD program box kept displaying
“CONNECTING ESC” after you connected it to
your ESC.
2. The LED program card kept display 3 short
lines (- - -) after you connected it to your ESC.
The programming card/box was connected to
the ESC via the throttle control cable (Rx cable).
It is wrong to use the Rx cable to
connect programming card/box. The
programming port of this ESC is also the
fan port, so please connect the ESC and
programming card/box by plugging the
programming cable into the fan port.
When pressing the SET button to set the throttle
neutral position, the GREEN LED didn’t flash
and no beep was emitted, or you were unable
to set the full throttle endpoint and the full
brake endpoint after the neutral position was
accepted.
1. The ESC throttle cable wasn’t plugged in the
correct channel on the receiver.
2. The ESC throttle cable was reversely plugged
in.
1. Plug the throttle cable into the throttle
(TH) channel on your receiver.
2. Plug in the throttle cable properly by
referring to relevant mark shown on
your receiver.
