[ABGinVA]

Hi all...I am a part-time Villager in Orange Blossom Garden and have a four zone Hunter system with Rainbird heads that has been working fine for two years. Our lawn guy shut it off this summer when it was raining enough that we didn't need it. Our lawn guy did not turn the water off to the irrigation system. When I arrived this week, I noticed 3 of the 9 heads in zone 4 have puddles around them. I was able to manually run zones 1 - 3, but in zone 4, no heads will deploy. Any ideas on what steps I should take to troubleshoot and resolve this malfunction?