Hi again folks, so My Class A has "heated waste tanks" as labeled on the waste tank compartment door. I'm trying to figure out how this works. there's no on\off switch that I can find anywhere . ...
If they're heated by electric heat tape or pad there should be a switch somewhere to turn them off. Ours our heated by the furnace. There are ducts/registers in the top of basement compartments, they can be closed off just like the ones inside.