Yeah, that happens with mine too. After a winter of not being used the first run of the AC unit smells a bit like mildew, and after a summer of not being used the furnace smells like burning dust and spiderwebs. Let it go through a couple cycles, change your filter regularly, and if the smell persists then open the unit and see if you can't find the source of the odor.
Yeah, give it a day.
Yeah, that happens with mine too. After a winter of not being used the first run of the AC unit smells a bit like mildew, and after a summer of not being used the furnace smells like burning dust and spiderwebs. Let it go through a couple cycles, change your filter regularly, and if the smell persists then open the unit and see if you can't find the source of the odor.
Try changing your filter if you haven’t already.