Question
The LCD display is working but the symbol indicating "NO A/C POWER" is on & sprinklers won't fire up, so I believe I need a new transformer (120 volt AC output) and was wondering WHERE I can purchase one?  The LRNelson.com web site doesn't seem to have the SmartZone EZ product line there and another web site that sells SmartZone parts said Nelson products are now called "Signature"?

Answer
Hey Margaret, I hope this helps. If you are getting this display "NO A/C power, the first thing to check, is if you are getting 110 volts to the controller (transformer). You will get an LCD display if the battery is good but there is no power to the controller. You might also check that you have a good battery installed in the controller. #1 check that you have 110volt power to the transformer, #2 if you have 110 volts to the transformer, check that the transformer is putting out 20 to 26 volts. If the transformer is not putting out power, then you can replace the transformer. Almost any transformer that is rated at 24 volts and around .05amps, should work fine on this controller if you can't find an exact Nelson replacement. I would check with any irrigation supply store and they should carry a transformer for this controller. Good luck and have a great day.