We have a 2011 Heartland Big Country fifth wheel that we are living in full-time for approx. 4 months. We are hooked up to 50amp service. The first problem started in the bedroom when I turned on the light switch, the lights were delayed coming on. At first it was only a half second, then it kept getting longer while noticing the switch was getting hot. Okay, we won't use that light switch and use our lamp instead until we move the rig avoiding a mobile service call. Well, yesterday, I turn on the kitchen lights and after a minute, they started flickering. Ok, now we won't use the overhead kitchen lights anymore. All other lights, sockets and appliances work just fine (so far). Can anyone shed any light (no pun intended) on our Dilemma? Neither one of us are that mechanically inclined and if it involves a simple fix or quick diagnostic solution, we can at least try some recommended remedies.