AQR15 Long run time = low salt

[Uncle Flappy]

Greetings! I am hoping to get some advice. I am dealing with a problem that started last season:

When the SWCG first starts in the day, the salt reading is fairly accurate; however, detected levels eventually drop over time causing a "Low Salt" error. I can remedy this by running the pump only one hour at a time but that is less than ideal. I've re-calibrated and the cell tested fine at the pool store yet the problem persists.

I may have made the original purchase on my Costco Visa which would extend Hayward's three-year warranty to five but they want a repair estimate.

How do you recommend I proceed? Is the problem on the board or cell?

Thanks for your help!

- Flappy

 

[JamesW]

What are the diagnostic readings?

 

[Jimrahbe]

U,

What is the actual salt level of the pool water?

Jim R.

 

[splashpad]

I am hoping to get some advice. I am dealing with a problem that started last season:

Have you added salt to the pool?
I did find your '17 thread and you mentioned a cell replacement with 1yr warranty.... is this the replacement cell doing the "same" thing?
What are the full water parameters (test results)?
What is your current t-1766 salt content result?

 

[Uncle Flappy]

Just got back from the pool store. Tested the cell four times. It failed the first two but passed the second two. Took a photo of the failed test for Costco warranty purposes. Costco should honor the original 3-year warranty + 2 years. I bought the system in 2015.

K-1766 shows salt at 3400.

Diagnostics:
3000
67
26.6
5.37
100%
2900
AL-5
r 1.59
T-15


I'll bet a shiny new nickel that if I check the diagnostics again in an hour, the salt will be much lower.

Thanks for your help.

- Flappy

 

[JamesW]

If the hump is up, try putting it down.

If the flow rate is low, try increasing it some.

Check salinity after running for a while to see if it drops over time. Then, turn off and back on to reverse polarity and see if the numbers are different.

Check for scale and clean if necessary.

 

[Uncle Flappy]

In the last 15 minutes, salinity went down from 2900 to 2400.

I've always had the hump up - just inverted it. I'll check on it again in a bit.
Didn't see any scale when taking the cell to the pool store. Looks brand new.

 

[Uncle Flappy]

The SWCG has been running for over an hour at 100%. Here are the readings:
3000
65
27.4
4.53
100p
-2400

I toggled the off/auto switch and waited a few seconds until I heard the relay click. New readings:
3000
65
26.5
5.46
100p
-3100

 

[JamesW]

I would say that you need a new cell.

 

[Uncle Flappy]

Thanks, James. I'll order a new cell.
- Flappy