GFI Problem

When you buy the new GFI also buy a basic multimeter. You will use it many times in your RV and around the house.

The wires coming from the circuit breaker needs to be connected to the line side of GFCI, the wires going to next receptacle goes to the load terminals.
GFCI receptacles come in different ratings. That is about the only difference. Higher the rating the more sensitive they are.

captpar wrote:
Does it matter if the line in and out is reversed?

Yes, it matters! The GFCI will not function properly if the connections are reversed.

Part of the problem is that the instructions showed the two recepticals with the ground plug in the up orientation for the hook up .the one I took out had the plugs on the bottom. I don't remember when I changed it out several years ago if it was the same and I just rotated the assembly when I put it back into the wall. Does it matter if the line in and out is reversed?

Once you have the GFCI wired up, you can double-check that you have the wires on the correct terminals by using the test button and seeing if the GFCI receptacle is still active. If you have the line and load switched, the GFCI will turn off all the downstream outlets, but not its own (which is unprotected)--at least that is the way the vast majority of GFCI receptacles work.

The color of the plastic for the receptacle is completely immaterial from the point of view of function. It may or may not be immaterial to the interior decorator of record for the RV.

At the least get a non-contact voltage tester or better yet get at multimeter and see which line has power.

Connect one pair of wires to the "Line" terminals of the GFCI and temporarily tape or wire nut the other pair. Turn on the breaker. If the GFCI has power, turn off the breaker and connect the other pair to the "Load" terminals. If no power, move the connected pair to the "Load" terminals and connect the remaining pair to the "Line" terminals. Pay attention to the correct neutral and hot terminal orientation of course. I'm partial to Hubbell brand GFCI's...