This has been frustration me since installation.
I have a Rachio3 and 5 zones with 1 Master. All but my Master solenoid is a 24VAC micro solenoid connected to 19mm tubing.
What I am experiencing is that when a zone starts the right solenoids buzz but don’t open. If I tap and sometimes bang the solenoid they open. This is intermittent. They have no issues closing. I have replaced solenoids with different brands and got the same result.
I have rewired the solenoids and changed from waterproof connectors to soldering in the hope that it was just poor connections. They work 1-2 times and then stopped opening without having to tap them.
I have also opened them and cleaned them (no visible grit). What I did notice was with the top off I tested opening the valve with Rachio and it buzzed but the pin wasn’t pulled up. It’s like its not strong enough.
Has anyone else had this issue?
Thanks in advance