Irrigation Troubleshooting Guide Issue: Blank screen or AC OFF
My timer has a blank screen or says AC OFF/PO OFF/PR OFF
Electronic equipment and solid state components are vulnerable to voltage surges of various magnitudes. This is the most likely reason for the error message displayed on your timer or controller.
The first thing to do is check the outlet. Plug something else, like a lamp or portable hair dryer, into the outlet to see if it is working. If there is another outlet nearby, try plugging the timer into it. If the outlet is not working, you may have experienced a power surge that tripped a household circuit breaker.
Question: does the electrical outlet being used work with other products?
Yes, other products work with this electrical outlet.
