. . . membership updated.

If your AquaRite is 3+ years old, those results ('hot' + no chlorine in spite of adequate salt levels) most often mean a dead cell. Even though this is a fairly common event, Hayward apparently does not recognize it as a common 'trouble' condition.

You can call them, if you like. If you choose to do so, run through the diagnostic display first:

Diagnostic Displays
Sequential pushes of the small "diagnostic" button next to the LCD display will cause
the Aqua Rite to display the following information:
1. Pool temperature (xx degrees Fahrenheit or Celsius)
2. Cell voltage (xx.x volts)
3. Cell current (x.xx amps)
4. Desired Output % ("0P" -- "100P" depending on knob position or input from remote
pool automation controller)
5. Instant salinity ( -xxxx ppm or -x.xx grams/Liter)
6. Product name sent to the pool automation control display ("AL-0" which signifies
"Aqua Rite")
7. Software revision level (r1.xx)
8. Chlorinator cell type (t-3, t-5, t-9, t-15)
On the 9th push of the button the display will revert back to the default salt display.
Also, if the button is not pushed for 30 seconds, the display will revert back to the
standard salt display.
You can get copies of the manuals on the Hayward AquaRite page.

If you decide to just go ahead and replace the cell, definitely run the diagnostics, to make sure you're getting normal power to the cell AND, order a larger cell. Cell life expectancy is directly related to cell "ON" time. As a result a larger cell -- which will run less -- will last much longer.

Hayward AquaRite T-40 cell @ Amazon