I have a quick question the display panel on the SWG at time show 0 for desired ouput and 0 for the cell voltage. My default salt has not changed from 2800 even tho I added 2 bags of salt but the test strips also show around 2800. The Instant salt jumps around it maybe -2800 or -3300. know very little but could my system be going out, i do not know how old it is, it was used when it was put on. Thanks