Originally Posted by
cathyvv
I don't think I'd put any kind of fabric or batting inside a switch. Switches sometimes spark, and fabric burns. Nope, not something I would even remotely consider, although my DH probably would. I'd spend a few bucks on the right part for the switch and sleep better at night.
The switch's sole purpose is that when the cover is off the furnace, the furnace won't ignite. It is mainly a safety thing that means the cover HAS to be on because there are so many moving parts right there if the cover is off.
The product that was there looked very much like a polyester batting type product and since the furnace is 25 years old (had to ask him when we put it in) it just wore in that spot. Maybe that's why he chose polyester?
The switch is always on, just off when we take off the cover, and the batting itself is covered by duct tape