I had a similar thing on our Keystone Fuzion. The outside light over the entrance steps would not go off. I have a battery disconnect switch, even with it turned off, the light would stay on. There is a rocker switch inside that had no effect on the light, and the switch would stay illuminated even with the battery switch in the off position. To make a long story short, if you turn that particular light on with the remote controller, you can only turn it off with the controller. Crazy. To me, the battery disconnect should be just that. I'm sure there is some logic to this, but not to me.