My Intellichlor power center keeps blowing the 10A fuse inside. It has been running fine, but today the salt cell was not lit up. I have replaced the fuse and disconnected the salt cell from the power center. The fuse does not blow when cell is disconnected. I measured the voltage coming out of power center to salt cell to be 27.8 V and I know it is supposed to be between 35-40. So, is the problem the salt cell or the power center? Help please!!