Right my flip 3D has hitec 645MG servo's in it and I've heard the pots go. Does this happen as I've just been sent a broken one from the shop. If they do go, will they just go bringing done the model or winll they not start oneday. ANd is this common with all Hitec servo's as I have the HS77 going in my smaragd.
Please and put my mind at rest.

errr..... no they should be ok.

I have had a few 645MGs burn out when a model was accidently left on... these servos were in a train in a giant scale model... basically they didnt work when i tried them but the ones that werent in a train were fine.

Don't let it worry you it will only make you overparanoid!