I did the usual spring startup routine a few weeks ago: sprayed out the filter, de-scaled the salt cell, got the ph and alk right, added salt, scrubbed some algae. Now after a few weeks of getting readings on the ecomatic box around 33, I'm getting nothing on the display and two red lights. There's almost 4000 ppm salt and I cleaned all the scale off the cell twice. If there's nothing visibly wrong with the cell, can it still be bad? I see that CompuPool makes a cap kit as well as a replacement cell. Is the cap kit worth trying or should I just replace the cell? It's not that old (bought in 2008), and I didn't notice anything wrong with it visibly, but I didn't really examine it that closely and I wouldn't really know what to look for. Thanks.