Would appreciate some help. My system is 8 years old. The test salt level and inspect cell lights start flashing after running about 1 minute. Had the salt level tested and all was good there. Called Hayward support and they said it was the cell (going on 8 years no problems). Told them I had the cell tested and it was fine but insisted it was a bad cell. I just replaced the cell and get the same results. A minute of running, the same 2 lights start flashing and it stops generating chlorine. I assume it's something on the board but not sure what it could be. Anyone have an idea?