We don't really know if there was a problem at all, just that the OP stated that the LED's will "blink briefly" in the yellow zone. We are trying to help him understand why this may happen. What we are trying to point out here is that sustained actrivity of the yellow or red LED's will cause problems regardless of what else is going on and must be corrected to insure longevity and safety in flight of his RC model. It's just that simple. And, yes, it is voltage and duration that can and will cause probems.

Everything stated above is accurate, but one must consider that beginner or intermediate sport aircraft equipment, including servo wiring, battery wiring, switches, and so on are probably not something that a beginner will really need be concerned about. There is absoluely nothing in such aircraft that will have any problems caused by this. The most obvious issues I've see are mainly in setting up the throttle and mis-adjusted control surface throws, with the most likely cuprit being the throttle.

CGr.