This is my 3rd year (first season only used 1.5 months) using the autpilot dig 220 and in general it has been working pretty good - although the temp reading was always 4-5 degrees high. I added some salt a few weeks ago, and I had a reading of 3300 - everthing good. Today I noticed that a CHECK FLOW was flashing so I check the strainer, but it was pretty clear so I gave it a rinse and put it back in place. Turned pump on - same problem. Checking out some of the other posts, I thought it may be a stuck valve so I opened and closed a couple of jets to change the pressure and the error cleared. Now I am getting an error to add 562lbs of salt due to a 000 ppm salt reading. I unplugged/plugged in the cables, but still getting the same error. I did a salt test reading using an AquaChek strip, and it indicated about 3800.
I decided to unplug all the cables, remove the tri-sensor, and remove the cell. Everything looked OK with clean, even fins so I hosed out the cell and put it all back together again and now it is working! Maybe it was a flakey cable connection.
I am getting the same 3300 reading again, but that is way off of the 3800 from my strip test. It seems like a pretty big drift in the sensor reading. My strips are a couple years old, but I have kept them sealed and dry - do they go bad? Finally, is the high temp reading something I should be concerned with? What kind of accuracy have other users experienced?
I am going to take a sample to the pool store to get a salt reading, but I not sure how reliable that will be.