JUPIJ79

Hi I'm New Here, I have given a radio control helicopter tech team and put in his papers is the 4 channel interceptor, worked fine 2 days, but the third when accelerating (forgive the terminology I am totally new to this world) is set to rise to spin in the direction of clockwise and does not rise, according to the instructions I give the trimmer button to correct, but I give him and does nothing, I'm a little desperate, you can help me? if necessary upload photos and control the helicopter so you can see what it is.
Greetings and thank you very much