I have an Aqua-Rite chlorine generator that I had installed when my pool was built in 2003. I'm on my second cell for it, and a couple months ago started getting salt readings that were all over the place. All the water chemistry was in line so I suspected a new cell was needed. I installed a new cell today and as soon as it was plugged into the controller, the LCD started to go blank. The fuse is fine, but sliding the control switch does nothing. I put the old cell back on as a test and everything seemed fine. I tried one more time with the new cell, this time turning off the power to the unit first. when I turned the power back on I had the same result as before...no readout. Now when I put the old cell back on, the LEDs all started blinking like crazy and the LCD seemed ok and then went blank as well. Now all that lights up is the "power" LED. Is my board fried or is something else going on here? Could the new cell have fried the board?

Help...please!