new cell installed due to low salt level was at 2900 but showed 300,

Welcome to TFP.

Details please. What system? What cell did you have? What did you replace it with?

How did you reset?
 
Check that the cell type is set to T-3.


With the correct cell in place, move the switch to auto and momentarily push the diagnostic button to display the cell type "T-X". Then move the switch to Superchlorinate and back to auto 3x or until T-15 or whatever the correct cell type is shown on the display.
 
Can you post a picture of the label and serial number of the cell you removed?

How many gallons in your pool?
 

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i have the hayward goldline chlorinator with the software version of r 159. The new cell from amazon is a blue world BLW1T3H T3 cell my pool is 10K gallons
Green and clean t-9 cell purchased on ebay oct 21 it has no s/n worked fine until 4 days ago. New cell now reads 1600 vs 2000 and both check cell and salt lights are on
You are replacing a T-9 cell with a smaller T-3 cell.

Your control panel is set for T-9 and needs to be reset for T-3. That is why the salt readings are incorrect.

We recommend a SWG be rated at 2X the pool volume. The T-9 is for 25,000 gallons and we think it should only be used in pools less than 15,000 gallons. The T-3 is 15,000 gallons and is appropriate for a pool less then around 8,000 gallons.

How many gallons in your pool?
 
You are replacing a T-9 cell with a smaller T-3 cell.

Your control panel is set for T-9 and needs to be reset for T-3. That is why the salt readings are incorrect.

We recommend a SWG be rated at 2X the pool volume. The T-9 is for 25,000 gallons and we think it should only be used in pools less than 15,000 gallons. The T-3 is 15,000 gallons and is appropriate for a pool less then around 8,000 gallons.

How many gallons in your pool?
10k
 
You are replacing a T-9 cell with a smaller T-3 cell.

Your control panel is set for T-9 and needs to be reset for T-3. That is why the salt readings are incorrect.

We recommend a SWG be rated at 2X the pool volume. The T-9 is for 25,000 gallons and we think it should only be used in pools less than 15,000 gallons. The T-3 is 15,000 gallons and is appropriate for a pool less then around 8,000 gallons.

How many gallons in your pool?
what does SWG stand for is it a make of cell? or salt watyer generator?
 

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