So i have had the pool open for a couple weeks now and have gotten all the chemicals right and temp above 70, but the SWG is giving me these errors (low salt and High cell current and cell voltage below 19v. The back board was replaced by me two summers ago and has been working fine. As for the salt issue the board reads zero salt and there is 400 lbs in the pool that I put in the other day. Any help would be great. I have a back board on order, but if this is something easily fixable I would rather do that