RC Troubleshooting 101: My RC Won’t Run

by sunny on March 17, 2010

rcrepair1

Your RC won't start, has come to a sudden halt or runs like it just woke up from 100 years of slumber. Don't panic. Most of the time, it's actually just a little snag that won't require an engineering degree (or plenty of RC experience) to fix. In fact, it's probably an obvious problem. Here's a laundry list of what you need to check.

1. Switches. Are you sure the car is turned on? Believe it or not, this is the most common culprit for novice drivers suddenly screaming like they're about to cry. Check the power switch on the vehicle and check your transmitter too. If both are turned on, then you're not stupid. Congratulations.

2. Transmitter. Are you sure you have the right one for the car you're using? Look for the frequency label on both the vehicle and the transmitter. Oooops. If that's not the culprit, check the antennas. Make sure they're not damaged and are installed properly.

3. Batteries. Change the batteries (or install them, in case you forgot - duh). Make sure you insert it snugly, facing the right directions.

4. Fuel. If you're driving a nitro RC, check the fuel tank. In case it's not running on empty, check the fuel system. Warning: this can get a bit involved. First, try adjusting the fuel mixture (leaning out or enriching it) and see if that solves the problem. If not, look for bends or tears in the fuel line, as well as blockage (you have to disconnect it). Also, inspect the tank and lids for any air leaks.

5. Servos. We're getting a bit more advanced here, but this is usually the problem when you can make the RC do some things but not others (that it's supposed to - you can't expect a monster truck to fly 30 feet in the air). To test, unplug the servos and put them on a different receiver, then check if it responds properly.

Now, if none of those things are the culprit, then you might have a more serious problem on your hands. Unless you know what you're doing, we recommend just going down to your local shop to have them take a look.

{ 3 comments… read them below or add one }

john September 10, 2010 at 1:15 am

I have a 1/8 scale buggy and every time I try to start it it floods. What should i do.

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jay January 9, 2011 at 6:20 pm

ok my XTM mammoth rc truck cranks. and when i accelerate it wont go anywhere. any solutions on how to fix this problem!! i just changed the clutch shoes out and put a new gears on too!

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jay January 9, 2011 at 6:25 pm

ok just bought a new HPI racing monster truck 1/8 scale.. and burned up the factory gear on it. what would be the best metal gear so this wont happen again! also when i go to crank it it wont turn over. sounds like i have lost compression in the motor, what is the best way to fix this? Do i have to buy a new motor??

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