Power outage 2 hrs; controller won't restart. Screen blank. New battery no help. Power at transformer confirmed with new 24V unit. No visible board damage. Worked before outage.
Matt: "With the crazy weather... I'm guessing I'll get a number of these. Did you have a storm which caused the power outage? If so, you probably have power surge or lightning damage to the controller. It will need to be replaced."
"Hook one transformer wire to the common 'COM' of the terminals. Then touch the other transformer wire to the zone number terminals. The valve should come on. This will at least determine the valves are OK."
A blank screen with good input power usually means the microprocessor or display driver is fried—common after nearby lightning strikes even without a direct hit.
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