I have an Hayward Swimpure Plus that keeps the check salt and inspect cell lights on. I have two t-cell 15’s which one is 4 years old and the other 3 years old. I alternate them when it’s time to be cleaned. My salt level is at 3400ppm yet my display reads 1900 on both cells even after calibration. I have tested them by putting in my cleaning bucket with pool water and they are both producing chlorine gas generously. How do I test whether this is a T- cell issue or a board issue?
As long as you are using a good salt test kit and are confident in the salinity level, your cells may be nearing their end-of-life.
If you feel that they should have lots of life left in them, turn the power off, open the control box, and check the board connections as well as the salt cell cable connections to be sure they are clean and making good contact.
Salt cells generally last for about 6,000 hours of use, but that can get chewed away a bit when the cells are cleaned, so don’t be too aggressive during cleaning.
I’m not sure if this will help, but check How To Know When a Salt Cell is Bad
I’m stuck between a bad CPU board and bad T-15 turbo cell. I took a water sample to my pool supply store to have tested. It wea at 3500 ppm. My pool is 38000 gallons so I added some water to bring it up to level. I calibrated the salt level multiple times but it never showed over 2200 ppm of salt. As I stated I have two salt cells which I alternate and both are showing the same numbers which is to much of a coincidence that they’d both go out simultaneously. I put them in a bucket of pool water and they were producing chlorine gas so the cells appear fine. My only other option is a bad CPU board. Which I may go ahead and order because it’s the cheapest of two. As I said, I have a Hayward Swimpure Plus with a T-15 turbo cell. Can you recommend a replacement board for my unit so I can get it ordered. Thank you.
Having both cells give the same readings would be an odd coincidence. If you do not have an automation system, our Pureline Replacement Main PCB, Compatible with AquaRite™ GLX-PCB-RITE - PL7100 would work, but get the Hayward Aquarite Replacement Main PCB Printed Circuit Board for Salt Chlorination System - GLX-PCB-RITE if you have automation system or generic (non-Hayward branded) salt cells.
Both are Hayward Turbo cell T-15’s. Thank you