Troubleshooting
Problem
EN
Motor does not
run
Vehicle runs back-
wards
Weak motor / no
power
Vehicle is hard to
control
Vehicle has no
function
Vehicle runs very
loud
Repairs, Spare parts
Normal wear and defective parts that result from an accident, are excluded from the warranty. These include in
particular:
for car models: bald tires, worn parts and drive gears, or bent / broken suspension, chassis or bodywork
ship models: damaged or broken propellers, torn superstructure
airplanes: damage due to improper transport or crash
If you find a part that is defective in material or workmanship right after opening the package, return - before you
used it – to your dealer or directly to us and we will send you a replacement.
24
Possible Cause
Motor cable unplugged or broken
Drive battery empty
Throttle trim TH.TRIM on the transmitter
set incorrectly
Motor broken
Throttle servo reverse switch TH.REV in
R position
Battery is almost empty
Throttle trim TH.TRIM on the transmitter
set incorrectly
Drive train does not run smoothly
Vehicle is very loud
Motor gets very hot
Transmitter LEDs flashing - transmitter
batteries almost empty
Steering trim ST.TRIM on the transmitter
set incorrectly
Interference
Throttle trim TH.TRIM on the transmitter
set incorrectly
LEDs on the transmitter does not light up
Transmitter - receiver not bound
Interference
Throttle trim TH.TRIM on the transmitter
set incorrectly
Car aerial torn off
Transmitter LEDs flashing - transmitter
batteries almost empty
Drive battery empty
Battery contacts dirty or bent
Gear mash between the pinion and main
gear set incorrectly
Worn gears
Bearings runs tight or worn out
Troubleshooting · Repairs
Solution
Insert the motor cable or solder
Change or charge the battery
Check transmitter, set trim correctly
Replace the motor
Set servo reverse switch in position N
Change or charge the battery
Check transmitter, set trim correctly
Check drive train and clean if necessary
Check pinion clearance, adjust if neces-
sary
Allow motor to cool; check drive train for
binding parts and precise gear mesh
Change or charge the battery
Check transmitter, set trim correctly
Turn off the vehicle and transmitter, make
a quick break and then re-try
Set throttle trim to the center position
Check that vehicle and transmitter are
turned on
Rebind transmitter - receiver (see chap-
ter BINDING)
Set throttle trim to the center position
Repair antenna (vehicle)
Change or charge the battery
Change or charge the battery
Clean the contacts, re-adjust with a
screwdriver
Check gear mesh adjust if necessary
Check and replace if necessary
Check and lubricate or replace if neces-
sary
twenty4 series