Took on a new job today to replace a cracked pipe after the backflow to the ground. 5' of copper that is exposed between the backflow to the ground, 20 minutes and I was done. She wanted me to charge the system and check all the heads. No problem. She also wanted a new timer installed so I did that as well before charging the system. All finished, zone 1 nothing. zone 2-7 nothing as well. All valves tested good with my meter so I put new wire nuts on every connection. Valves turn on manually but not with the timer. Any ideas?