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Syma S107 Remote Control Helicopter Problems & Solutions

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Most Common Problems

Below is a collection of common problems and solutions with the Syma S107 remote contol helicopter. In general it is a fairly well built model, with the majority of it being made of tough metal. Occasionaly parts do get damaged in severe crashes, but not to worry; as spare parts (at a very reasonable price) are widely available! In fact, the spare part catalogue is so comprehensive you could build a helicopter from buying spare parts and assembling them together!

Short or No Airtime

(faulty battery, replace). Many people claim fitting a 240mAh Li-Po battery to upgrade from the default 180mAh (or 150mAh in some instances). However after much testing, the original batteries have proven to be the better option in the long run. Just buy couple of extra 'copters to triple the flight time!

Slow drift whilst hovering

- forwards or backwards (centre of gravity is off). Either relocate the battery by a few millimeters, add a small nose-weight or remove some tail-decorations.

T.B.E aka Toilet Bowl Effect

*T.B.E aka Toilet Bowl Effect (caused by a problem with the flybar). When your heli makes large circular motions whilst hovering, much like if the heli had been caught in a whirl pool. Not to be confused with the helicopter rotating upon its own axis! Either loosen/clean up fly-bar connecting links or replace entire top-rotor assembly. For information about this problem a useful site is http://www.squidoo.com/toilet-bowl-effect-syma-s107-helicopter

Lack of Power

*Model capable of low hover only or barely lifting off at all (the bottom rotor is probably slipping on shaft, push back down to click into place, a small spot of glue will do the trick if problem continues).

No Forward/Backward Movement

*Tail-motor failure (motor burnt out, replace).

No Response From Controller

*Flashing green LED light on controller, unresponsive throttle (due to poorly made transmitter cover). use fine sand paper or a file on the Tx top cover to allow throttle to close fully.

Looking after the Li-Po battery:

*Leave to cool-down after flight, (aprox. ten minutes.)
*Charge via USB, (aprox. fourty mins.)
* Leave the battery to cool-down post charge, (ten minutes.)
*Fly for five minutes, (Stop flight immediately as you notice the 'copter struggling to gain height!)

If you look after your Li-Po battery, it should hold charge for more than 100 charge cycles (8 or more hours of flight in total!)

Some Useful Links!

Fixing The Toilet Bowl Effect: More detailed information about the toilet bowl effect and how to fix it!
Syma S107 RC Helicopter Review: A complete, honest review of this little helicopter. Everything you will need to know and some hints and tips for RC Heli beginners!

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shaun015 May 10, 2012 @ 9:43 am | delete

Hi I have the syma s107-c helicopter, and have found it to be very reliable,durable and very easy to fly. The syma helicopter range are the best.