maybe the 'extra jumpers' you're adding are still to painted metal? SS bolts aren't as good conductors, make sure lock washers are 'digging in' to the bolt and sheet metal

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics