I assume I have a cut in the underground wire that leads from the house to the lamp post. I have replaced the light sensor but the GFI still trips when I turn the light switch on that controls it. Need some suggestions. The wire is buried and I have an irrigation system, flower beds, and paver wall between the house and post. My guess is to run a new wire from house to post. How do I attach wires to switch in house??? Or do I put new switch in garage and wire from there?? Help/suggestions would be great. Thanks

There is an incandescent ceiling light on the upper floor on my house (built in 1992). It's not a can light. The attic is above this light fixture. The fixture is controlled by 2 3-way switches, one on each end of the hall. There is no dimmer connected to this circuit. 99% of the time, the fixture works perfectly. However, on some afternoons, always on hot days, the lights in the fixture turn on, although no switch has been turned on. When this happens, they appear slightly dimmer that normal. If either wall switch is turned to the "ON" position, the lights in the fixture turn on to full brightness, and if the switch is turned to "OFF", the lights are slightly dimmed. After a few hours, the lights turn off, and everything works normally. Since this never happens at night, and always during hot afternoons, I keep thinking it has something to do with the heat in the attic. But that doesn't make sense, since I've had other light fixtures that overheat, and when that happens, the light turns off, not on. A professional electrician replaced both of the wall switches, but the strange behavior still occurs on hot afternoons. The electrician, and others in local hardware stores are stumped. Have you ever heard of this happening? Any ideas that you have on what is causing this are greatly appreciated! Thank you.