yes, not having an ammeter wired in could be a problem, you should at least have a wire to bypass it, check the wiring diagram

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