I fixed mine. Now that I understand how they are designed they all have the sweet spot on top and the side. Mine was falsing and over reacting due to one of the coil wires having the "red insulation" rubbed off of it and it was essentially grounding out on the circuit board. Because it is a full year out of warranty and I am very impatient, I fixed it myself.
I pain stakingly removed the circuit board from the body, took a small piece of tape and covered up the CB where the wires were touching and it's working perfectly. I think I might fix a small coin onto the body behind the coil to increase the range but that will come later.
If if you decide to do this. watch every YouTube video you can and follow it step by step. You can easily break the "on off" toggle switch or even rip the coil wires off the CB and then you really got a problem.