Hayward Tcell940-W incorrect salt readings

r2sie2

Gold Supporter
May 8, 2021
115
Southern California 91406
Pool Size
11000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
I just had a salt cell replaced under warranty (yay) it seems to be working but it’s showing double the salt that I’m getting from manually testing. I’m coming up with 2600 and OmniLogic is showing 5000 average and the same give or take a few hundred ppm. Searching the forum I see this is common when the wrong salt cell is programmed, but I see that it’s programmed as a t-15 which I believe is correct. Anything else I can check for?
 
What salt test kit are you using?

How old is the test kit?

What does the instantaneous salt level read in the Diagnostic menu?
 
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