I have a Pentair Swim Pure and I noticed that my salt reading on the panel is reading 3.56. No lights are on stating to add chlorine or to check the cell etc. just the green light power and green light generating. Ive never seen my salt go below 2000 before adding salt and Ive never seen a salt reading with a decimal in it.
My current readings from the panel are as follows:
I last added salt a few weeks ago. we have been building up to the mid 70's temp wise.
I opened the panel to inspect the computer board and verified that the black ceramic diode was not crumbling and appeared in tact. I have replaced that item in the past but you knew that it had gone bad because all the lights on the panel would be off.
I inspected the cell and did not observe any build up on the fins. I went ahead and did a mild acid soak but it did not change the readings. Any suggestions would be greatly appreciated.