Traxxas 3351 Velineon 3500 - Manual (Page 27)

VELINEON POWER SYSTEM • 27
Troubleshooting
This guide describes possible speed control problems, causes, and simple
solutions. Check these items before contacting Traxxas.
Steering channel works but the motor will not run:
• The speed control has thermally shut down. Allow the speed control to
cool down. Use a milder motor or a smaller pinion gear. Check the drive
train for restrictions. Check the motor connections. Check the motor.
• Make sure the speed control is plugged into the throttle channel of the
receiver. Check operation of the throttle channel with a servo.
• Bad battery or motor. Check the operation with known good battery
and motor.
• VXL-3s: Possible internal damage. Return the VXL-3s to Traxxas
for service.
Motor runs backwards:
• Motor wired backwards - Check the wiring and correct.
• Transmitter incorrectly set, see page 20.
Motor runs as soon as the battery is plugged in:
• Internal damage, return VXL-3s to Traxxas for service.
VXL-3s will not go into programming mode:
• Make sure the VXL-3s is plugged into Channel 2 (the throttle channel)
on the receiver. If it is plugged
into the battery terminal, it will not go into programming mode.
• Be sure the VXL-3s is turned off before trying to program or
select a profile.
• Unplug battery, reconnect, and repeat programming instructions.
• Check if transmitter is turned on.
Receiver glitches/throttle stutters during acceleration:
• The receiver or antenna is too close to power wires or the batteries.
• Bad connections - Check the wiring and connectors.
• Motor worn - Replace the motor.
• Excessive current to motor (over-geared motor) - Use a smaller
pinion gear.
• Battery voltage low. Recharge and/or verify
charged status.
• Disconnected brushless motor lead. Reconnect according to appropriate
wiring diagram.
Model runs slowly / slow acceleration:
• Check the motor and battery connectors.
• Check to see if VXL-3s is in Profile #3 (50% throttle)
• Bad battery or motor. Check the operation with known good battery
and motor.
• Incorrect transmitter or speed control adjustment. Refer to the
“Transmitter Setup” and “VXL-3s Setup Programming” sections.
• VXL-3s is in Thermal Shutdown Protection. Allow to cool and check for
proper gearing.
• VXL-3s has entered Low-Voltage Protection.
Steering servo does not work:
• Check the wires, radio system, crystals, battery and motor connectors,
and the battery pack.
• Possible internal damage. Test the servo on channel 2 of the receiver or
in another model. Return the servo to Traxxas for service.
Model will not go in reverse:
• Make sure the throttle trim is in the correct position (LED on VXL-3s
should be lit solid at neutral throttle)
• Check for correct VXL-3s profile (Profile #2 does not have reverse).
• If brushed motor is being used, verify proper connection to VXL-3s.
Correct if necessary.
KC1211_R01 Velineon_System_Man.indd 27 12/1/09 6:02:16 PM