RC cars are a fun hobby, but they come with their share of problems and issues, among them transmitters that occasionally might not work correctly. There are logical and safe ways to check a transmitter, though, so before you go out and purchase a new unit, run a couple of simple tests. When doing so, try to stay away from other electrical things such as power lines so that there is no interference.
- Skill level:
- Moderately Easy
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Things you need
- Fresh batteries
The transmitter will not work properly, or at all, if the batteries are dying or dead, so when your transmitter is acting up, the batteries are always the first thing to check. Replace the batteries with fresh units and make sure they are installed correctly. There will be a diagram inside the battery compartment that indicates the direction they should be inserted. On most units, there is a red or green light that indicates power. If replacing the batteries does not turn the light on, there could be a broken wire inside the unit.
Inspect the antenna. Make sure the antenna can telescope fully and is not loose at its base. If the unit wiggles, you may have to tighten the screw that holds it to the transmitter. If there are any major kinks or bends in the antenna, proper operation will be affected and the unit will need to be fixed or replaced.
Suspend the RC car and test the functions. If you are worried about a faulty transmitter, never try to use the car on the ground like normal. Put the RC on something that suspends the chassis but allows the four wheels to roll and turn. Turn the transmitter on, then the car. Test out the turning function and blip the throttle to see if the wheels spin. If nothing happens, either the transmitter has an issue or the servo (receiver) inside the RC car has gone bad.
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