Our 5'er is fairly new, we've been living in it in the Houston area for 6 months while we locate a home to buy. The carpet has picked up an oder and need to do something about it. We did the carpet cl...
I would check for a leak or wet carpet around the slideout. Does the carpet feel wet after a rain? Have you brought the slideout in while it was wet? The water from the slideout roof can run down the sides and onto the carpet.
My Wildwood had a bad slide seal that let water come in while it was closed. Rotted two dinner plate size holes in the plywood. Carpet had a musty nasty smell.