After 5 years of operation, I replaced the cell and cable on my Digial Nano. It was getting constant "Low volts" warnings and not putting out any Chlorine. Multiple washings had no permanent effect, and the lady at the pool store said that these things do have a limited lifetime. Ok. (But I also located a cheaper supplier for these things for next time)
But I continue to get erratic Low Volts messages. It will work fine for a day or two, then I get Low Volts. Yesterday the pool tested at zero Cl, so I added a gallon of liquid. This morning I did the voltage check sequence, (power off, power on, put in Boost mode, wait 20 sec) and it reads 16V at 3.9A, perfectly fine. The troubleshooting chart suggests checking the fuse on the main controller board, but I doubt it is that because that would not be intermittent.
Salt level is a bit low from all the rain, and I plan to go buy some more today. Last week I checked the salt with the Taylor K-1766 test kit and it read 2600ppm. I checked that the Nano controller was calibrated to the same value. But today it reads 2500ppm, probably due to the rain and having to let some water out. It says I should add 43 lbs which matches what PoolMath tells me.
Could this be a loose connection in the control box? The control box is on a covered porch and out of direct sun and rain. The cell itself is in the piping which is just outside the roofline and does get rained on, but it looks like it is designed to put up with that.
Update 2 hours later: I went out to check and the Low Volts message was showing. I did the test sequence again, off/on/boost/wait and it read 15 V at 4.2 A, which comes out to the same actual power reading as before, 63 Watts.
But I continue to get erratic Low Volts messages. It will work fine for a day or two, then I get Low Volts. Yesterday the pool tested at zero Cl, so I added a gallon of liquid. This morning I did the voltage check sequence, (power off, power on, put in Boost mode, wait 20 sec) and it reads 16V at 3.9A, perfectly fine. The troubleshooting chart suggests checking the fuse on the main controller board, but I doubt it is that because that would not be intermittent.
Salt level is a bit low from all the rain, and I plan to go buy some more today. Last week I checked the salt with the Taylor K-1766 test kit and it read 2600ppm. I checked that the Nano controller was calibrated to the same value. But today it reads 2500ppm, probably due to the rain and having to let some water out. It says I should add 43 lbs which matches what PoolMath tells me.
Could this be a loose connection in the control box? The control box is on a covered porch and out of direct sun and rain. The cell itself is in the piping which is just outside the roofline and does get rained on, but it looks like it is designed to put up with that.
Update 2 hours later: I went out to check and the Low Volts message was showing. I did the test sequence again, off/on/boost/wait and it read 15 V at 4.2 A, which comes out to the same actual power reading as before, 63 Watts.
