Recent content by ulao

That helped and ConradM is correct, bad sensor.

The sensor is new, just inspected in in the beginning of the summer. I'll take a look though I would not agree because the fault is immediate, the board does not even have time to power up to check a sensor voltage? Ping, thx but that is not the right board?

I happened to have a spare back board and I still get the errors. The error is displayed right after power own. I checked all transformer points and they are good. The cable that connects back to front boards is in bad shape, any way to test on the front board end?

I have been getting the 121 error and my pool is not generating chlorine. I read about the voltage issue and metered at 36v dc. This is a bit high, correct? I have removed the cell and gave it an acid bath from a few known good guides. The cell did not foam/phis up and appears to be clean. I...