My Intellichlor power center keeps blowing fuses. Researching the threads suggests that a bad salt cell can cause this problem. Since my cell was old (IC-40), I bought a new one, but with the new one the fuse still keeps blowing, so it would seem that the power center is the problem. Are these repairable? And if so is there a vendor who does repairs on these? Otherwise it seems I need to buy to a new one.