Well, the power reset changed the parameters.

The unit appears to be working.

The problem is before the original failure the salt reading was 2500 ppm. I added 40 lbs of salt which should have brought it near 3000 ppm.

After the power reset the salt reading is back down to 1600 ppm.

? ? ?

Tonight I am going to remove the cell and make sure it's not blocked somehow.

Tomorrow I'm going to try to get a water sample to my builder's pool store and get them to test the salt and see if it really is 1600 ppm. If it is, I'll start adding salt again. Maybe the unit was going flakey, giving me erroneous readings before the failure.

If it's not 1600, if it's in the 3000 range, then I guess I'll let them service the unit on Friday.