Originally Posted by P. Raz
Do you have a propane
detector. That's what causes the spark on mine. I added an in line fuse to the positive lead to let me disconnect away from the battery. It also stops the drain when not using the trailer. Raz
I think it's a better idea to have the disconnect, whether fuse or switch outside the trailer. I'm not sure where you're located yours.
Reason .. in the unlikely event that propane
has leaked inside the trailer a very little spark will set it off. With an outside cutoff you can turn on the battery and wait a few minutes for the propane
detector to rest and alarm if there's propane present. I believe that's the reason the instructions with the RV propane detector wants it connected full time.
Even though the propane detector only draws between 20 and 40 miliAmps it'll spark when the battery connection connected or removed.