When ever you take the back panel off of a stove to vacuum the dust out...maybe mid season or at the end of season, and you vacuum out the motor areas, is it a good idea to spray electronic motor cleaner at the wires and fan fins to get rid of all the dust/ash/ dirt? I mean QRC cleaners are electric motor safe. They wont melt plastics. They dry immediately. I think some are non-combustable. (I think).