A / C engine malfunction

friends in my car air conditioner engine ball is working, whether the air conditioner is turned on or not, I do not know whether there is any other problem, I do not know if I have a gas problem, I do not have a gas problem, I do not have to go to the electrician for the engine's ball or if there is any information about the air conditioner.

Does anyone have information about this malfunction?

The air conditioners change it, I think it makes very little noise to me too.