Our motherboard for the Aqua Rite shows low salt and inspect cell. We cleaned the T-15 Cell and re-installed the cell. I held and reset the diagnostic button per normal procedure to reset the cell. The power light and generating light came on. Then after a few minutes there was an audible click and the generating light went off and low salt & inspect cell lights came back on. See photo. The board was replaced in 2016 and the T cell replaced within this past year. What else can I check or does this sound like the board going bad?