Help with camper electric jacks!
I need some pretty urgent help with my camper. I went to put down the front set of electric Atwood jacks on my camper this afternoon, and they worked intermittently. They didn't work at all at first, ...
Forum Discussion
Boatycall wrote:
What that means is one of the two wires has lost it's connection to the jack, and your jacks are trying to get a ground via the frame, which they are not meant to because to go up they use one wire for hot, but to go down, they reverse polarity on the wires and the other wire then becomes hot.
So -- you have one of the two wires disconnected. Jacks CANNOT be frame-grounded electrically. In one direction, they're trying to get a ground via the frame and work.... but in the other direction, they are now dead-shorting to the frame and causing sparks.
Exactly correct.. They are DC motors and require swapping the + and- to go up and down. No external connections of the motors.
Jim
