7
❏
B. After two seconds, the green and red LED will blink
TWICE. Press and release the pushbutton at this time to
set a delay of
0.8 seconds.
❏
C. After three seconds the green and red LED will blink
THREE times. Press and release the pushbutton at this
time to
completely lockout or shut off reverse.
This ESC has built-in circuitry to sense an excessive
heating condition caused by current overload. If the
operating temperature exceeds 100° Celsius (212° F), the
unit will automatically shut down, as indicated by flashing
red and green LEDs. This is to protect all on-board
components and prevent permanent damage from
occurring. The ESC can again be used once the internal
temperature returns to an acceptable level, as indicated by
a change in the setup LEDs.
ESC DOES NOT WORK
Problem: Motor and/or steering servo are dead.
1) Recharge dead batteries.
2) Check for faulty power connections.
3) Check for a damaged connection between ESC and Rx.
4) Reverse polarity at battery. Allow ESC to rest at least 1
minute to reset the circuit protection system.
5) Internal damage. Unit may require service. See “Service
Procedures.”
Problem: No reverse.
1) Tx adjusted incorrectly. Repeat Step 5 above.
2) Reverse transistors might be damaged, and unit may
require service. See “Service Procedures.”
Problem: Case is melted.
Internal damage and unit requires service. See “Service
Procedures.”
Problem: ESC runs with switch off.
Drive transistor may be blown and unit may require service.
See “Service Procedures.”
ESC WORKS BUT OTHER PROBLEMS EXIST
Problem: Rx glitches or stutters during acceleration.
1) The three required motor capacitors are not installed or
have broken. Re-check all capacitors.
2) The Rx signal is intermittent due to a large voltage drop
during acceleration. Use an external battery and a non-
BEC Rx designed to be used with ESCs. Pay special
attention to remove the red lead from the Rx to ESC
harness prior to powering up the ESC or Rx.
3) Rx mounted too close to ESC causing interference.
Relocate Rx away from ESC.
4) Check for faulty power connections.
5) Use of an AM radio system might be resulting in erratic
signals. Use of an FM radio system might be necessary.
Problem: Model runs slowly or has no acceleration.
1) The ESC is not set up properly. Repeat Step 5 above.
2) Check for faulty battery and/or motor connections.
3) Tx is improperly adjusted. Repeat Step 3 above.
Problem: Steering servo works but motor is dead.
1) Motor brushes are hanging up, worn out, or motor is bad.
Clean or replace brushes and check motor.
2) Check for faulty motor connections.
Problem: Overheated motor or hot power plugs.
1) Motor is geared too high. Change to a lower gear setup.
2) Binding in the vehicle’s drivetrain. Check to make sure
nothing is interfering with the model’s drivetrain.
3) The motor is shorted electrically. Check the motor for
shorts and replace if necessary.
4) Check for faulty motor connections.
Problem: Motor runs backwards while forward LEDs are on.
1) Motor is wired backwards. Re-check Step 5 above.
2) A “reverse rotation” motor is being used. Replace motor
with a forward rotation motor.
Problem: Motor runs backwards when forward command
is given, even though LEDs match the motor direction.
Adjust the Tx throttle reversing function to the opposite position.
Problem: Model runs properly, then motor goes dead.
The built-in thermal protection may be automatically
shutting down power to the ESC due to overheating
conditions. Check for binding drivetrain, bad motor or
incorrect gear ratio for track conditions. Adjust gear mesh,
replace motor or change gear ratio. The ESC should reset in
a few minutes and operation can again be attempted.
ESC Troubleshooting Guide
Thermal Cutoff Protection
