I was wiring my sounder last weekend and just came across an issue. I bought a lowrance sounder, the power cable came with a red (pos), black (neg) and white (earth) cable. It told me to put a in-line switch in the circuit and also a 3AMP fuse close to the battery's positive side.
So I bought a pull switch with 2 terminals (one pwr and one acc), given a lack of information on which side each of the terminal is on the switch i just connected one side with the positive and one side with the negative. Since there is no room for the earth cable I just end capped the white cable and put electrical tape around it.
So from the sounder I have pos going into one side of the pull switch and neg going into the other side. Then the positive goes to a fuse and then to the positive side of the battery. The negative goes straight to the switch and then to the negative side of the battery.
The problem I have is when I have the switch pulled up (turned off), as soon as I connect the cables to the battery the fuse blows. But as soon as I have the switch pulled down (turned on) everything is ok.
What is going on??? I want to be able to turned the switch off without the fuse blowing, can anyone help? Thanks!