I've seen this blinking about 6 times the past 2 years. I'm starting to wonder about the RainDial. Everytime it was the controller.
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You could disconnect the wire from the problem valve and see if it still blinks.
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You could try resetting the controller.
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Make sure the faceplate's plugged in all the way. Open the panel and look for the grey color connector.
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I doubt any of that will work.
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The model number you gave us is an outdoor controller. If you don't want to fiddle with the wiring or anything, you could buy an indoor model, because it's cheaper, with the number of stations you need. 6,9 or 12. Take the faceplate out of the new controller and put it in the old controller.
It'll work...
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Maybe you want a different model. Up to you.
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