Water softener no longer softening water
We having problems with our water softener, and are completely stumped. We have a 48000 grain with Autotrol 255/460i. About a month ago, I noticed iron staining in the toilet, and went down to check the brine tank. It was out of salt, so I filled it, and hit the regen button. There was no change to the water. I hit the regen again and watched it cycle thru, it wasn't drawing brine from the tank. Cleaned the injector (it was due anyways) and the filter screen, still not drawing brine. Ordered a new injector and filter screen, and that allowed it to draw like it was supposed to, but the water was still not soft, and still producing iron stains. We replaced the resin beads, and still have the same problems. We are at a total loss. This unit is only about 4 years old, and was working perfectly, giving us crystal clear, iron free, soft water up until a month ago.
Any suggestions? It goes thru all the cycles like it is supposed to, but it never produces soft water.