then look in the tech tips, there's a good aftermarket signal article there, still likely a wiring problem, checking if that's all correct will be needed before suspecting a defective new switch .... and still no diodes involved smile

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 & Rust-a-holics Unanimous parking lot