Re: Bedroom switch doesn't turn on lights "SOME" of the time.
It's most likely either a bad connection at the switch, or more likely, a bad connection at the outlet. Knowing how trailers are built, they do not use standard outlets, they use an outlet that when the two hales of the outlet are put together, they pierce the wire housing. This works until the plug gets jostled, arcing burns off the prongs into the wire, or when the generally shoddy construction and materials that are found in most trailer manufacturing fails.
Regardless, turn off the breaker and check the connections at the switch and the outlet. Replace either if there is any question of damage.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!