What is the cost to look over my fence charger and service it. Cost estimate? I plug it I and I hear it clicking. Not sure if it is working. I know in the past it had quite a kick! I haven't used it in awhile. It is hanging outside, but covered from weather. Left light will not work. Right light barely blinks. I was thinking it could be grounded out. Hooked up to wire surrounding 10 acres.