Time to replace Hayward T-Cell-9?

Feb 8, 2018
18
Dallas
My Hayward/AquaRite T-Cell-9 appears to be failing (it's about 6.5 years old) and I'd like a second opinion. Readings on salt have been all over for the last week or 2 (from 700 to 2800 with instant between 0 and 3100, store test showed 2800). It appears to work with sane readings (including current and voltage) when it starts up after not running and in this state there is chlorine in the pool (according to my home test). Then after a while, it stops generating and the salt readings go haywire. I've tried an acid bath (there was brown buildup inside) and had it tested (store claims that only proves it will power up). AquaRite revision is 1.58 (installed 2011).

The other odd thing is that the cell itself almost looks like it burnt. I have a photo from May (left) and another from today (right). It's been hot here in Texas, but not sure it's been that hot.

Is it time to replace the cell or the entire system? If entire system, I'll be moving to Jandy to work with my iAquarite controller (since I lost the salt readout and super-chlorinate functions from the RS-4 panel when I replaced that).

04ADB942-B00C-401A-A39E-7F1F667EEABF_1_105_c.jpeg july_t_9.jpg
 
Last edited:
Update: I noticed the No Flow light was starting to stay on, rather than blink and turn off after starting pump. Replaced my flow sensor (old one was 10-12 years old and had some buildup on it) and there may be some life left in the cell. Normal readings and chlorine generation for about 24 hours now.

Also I flipped the old cell so it is u-shaped rather than n-shaped. The instructions from Hayward said to do this for variable and 2-speed pumps. New cell will stay on standby for now.
 
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.