The gold line controller was reading "hot". I turned it off and turned it on. It initially would register salt content (3300), then the generating light would start blinking and read hot, meaning not generating. I turned the controller off, set a bag of ice on the cell and let is stay for a few hours. When the ice melted, I turned the unit on and it read the temp at 174 degrees for a few seconds, then went to "hot". I tried to recalibrate. The controller went through it's calibration sequence and then read "hot" again and stopped generating. I opened the cell, cut the temp sensor wires and checked continuity on the switch. Continuity was bouncing everywhere. Figured it was shot. It should read somewhere around 8k-10k with the temp being in the mid to upper 80s. I will use my makeshift temp sensor for a while to make sure it is working, then probably order a Jandy replacement switch and install it. So far, so good. The water tests turned out exactly what the controller is reading.