So I'm having an issue with these boards. Recently had a no cell power error. From reading around I found many found a burnt K1 relay joint to be the issue. I took my board off and sure enough found the burnt area. Tried re-soldering to no victory. Next plan replace the board. I had a service tech replace the board and seemed as though all was well. Add some salt over the next two days as the level was low. Each time I would add salt I would get a high salt/amp error, it would eventually clear after the salt dissolved in to the pool. Now the new issue, 2 days later the problem is back. I take a look at the new board and notice the 20 amp fuse is blown. Before I just replace the fuse I want to be sure it's not a different problem. Any ideas on what could be causing my issues?