Alright so this is a bit of a strange one. I found my Nexstar 5SE mount downstairs today after a few years of not using it, the hand controller says 12/20/2017 was the last use since I moved entirely to AP. Anyway, I know these little mounts can grab roughly $200 on the classifieds so I thought I'd flip it to someone who will use it and upgrade something for my photography rig. I brought it up, turned it on and just started slewing around and messing with it, all seemed totally fine. But after I was done after about 10 minutes of just playing with it I turned it off and I smelled a burning kind of smell coming from the hand controller's holder inside the mount. Upon further looking into this it seems like the smell is coming from the azimuth motor housing. There isn't any smoke and the mount behaves perfectly fine as if nothing is wrong, is this a big issue or is it the result of not using it. I have vaguely heard that it could be the lubricant on the motor causing this but no concrete answers seem to be out there.
Anyone got any ideas? Should I be worried about this?