REDCAT TORNADO EPX PRO Guide Rapide page 20

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RCR-2CENR RADIO SYSTEM
ROUBLESHOOTING
TROUBLE
NiMH battery charge doesn't last as long as it
should.
LiPo battery won't recharge after running the
vehicle.
The ESC will not power on and the ON/OFF
switch was turned ON.
The vehicle ran backward when you pulled the
throttle trigger towards you.
Vehicle moves with no throttle input.
The motor suddenly stopped working, but the
steering still works.
The motor accelerated suddenly, stuttered or
stopped during the starting-up process.
After powered on, the motor doesn't work,
but emits "beep-beep-, beep-beep-"
alert tone. (Every "beep-beep-" has
a time interval of 1 second )
Grinding sound.
Clicking noise while steering.
Vehicle won't steer or move.
Vehicle turns to the side automatically.
Vehicle steers to the left when you steer to the
right.
Car isn't steering all the way.
Car is spinning out immediately.
Car will not countersteer enough.
Car is not countersteering at all.
After the ESC was powered on and finished
LiPo cells detection (the GREEN LED flashed N
times), and then the RED LED flashed rapidly.
POSSIBLE CAUSE
1. ESC is set to LiPo battery.
2. NiMH battery is not charged completely.
3. NiMH battery is not holding a charge.
1. ESC is set to NiMH battery and the LiPo
battery was discharged below the safe level.
2. Bad LiPo battery.
1. No power is being supplied to the
ESC.
2. The ESC switch may be damaged.
1. The radio "Throttle Reverse" switch
may be improperly set.
2. The motor rotation is incorrectly.
1. Throttle trim is not set properly.
2. Did not follow proper start-up instructions.
The LVC protection or the thermal
protection may have been activated.
1. The discharge capacity of the pack is
insufficient.
2. The RPM is too high, the gear ratio or
final drive ratio is incorrect.
3. Gear mesh too tight.
Input voltage is abnormal, too high or
too low
1. Gear mesh too loose.
2. Gears worn.
1. Servo gears stripped.
2. Servo horn stripped.
1. Battery pack not charged.
2. Battery wires loose.
3. Did not follow proper start-up
instructions.
1. Steering trim needs adjusting.
2. Steering servo horn needs realigning or
replaced.
3. Servo gears stripped.
4. Too much toe-out in front wheels.
1. Steering reverse (on transmitter) is set
incorrectly.
2. You are driving towards yourself and it just
seems like it's backwards.
Gyro EPA endpoints set incorrectly.
Gyro countersteering is set incorrectly.
1. Gain knob is set too low.
2. Gain wire is plugged into the receiver while
using the RTR controller.
Gyro not wired correctly.
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.
TM
19
POSSIBLE SOLUTIONS
1. Refer to the ESC Guide to set the ESC to
NiMH battery.
2, 3. Completely charge the NiMH battery with
an appropriate NiMH charger.
1. Refer to the ESC Guide and set the ESC to
LiPo battery. Properly dispose of the LiPo
battery, as it is no longer safe to use.
2. Replace the LiPo battery with a fully charged,
brand new battery. Dispose of the bad battery
in accordance to your local laws.
1. Check if all ESC & connections are well
soldered and firmly connected.
2. Contact Redcat support.
1. Switch the radio "Throttle Reverse"
switch.
2. Set the rotation in the ESC according to the
included instructions.
1. Set transmitter throttle trim.
2. Follow Quick Start Guide for proper start-up
sequence.
Check the battery voltage and the ESC
temperature. Let cool and recharge battery.
1. Use another pack with better discharge
capability.
2. Use stock motor, stock gearing, and
don't pull heavy loads.
3. Reset gear mesh.
Check the voltage of the battery pack
1. Reset gear mesh.
2. Replace gears.
1. Replace servo.
2. Replace servo horn.
1. Charge battery pack.
2. Plug in battery securely.
3. Follow Quick Start Guide for proper start-up
sequence.
1. Adjust transmitter steering trim.
2. Check servo horn, replace if worn or stripped.
3. Replace servo.
4. Adjust steering linkage to lessen toe amount.
1. Set the steering reverse on transmitter.
2. Practice driving the vehicle to get used to
steering with different vehicle orientations.
When driving towards yourself, it just seems like
the steering is backwards.
Refer to the Gyro section and reset endpoints.
Reverse the gyro countersteering. Refer to the
Gyro section of the manual.
1. Turn the gain knob to increase gain.
2. Unplug the gain plug from the receiver and set
the gain by turning the gain knob on the gyro.
Refer to the gyro section of the manual.
Check all wire connections. Refer to the wiring
diagram in the Gyro section of this manual.
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.