Electrical interference, usually due to wet connections or wire
Top Causes
● Sprinkler electrical current is higher than expected, due wet or exposed sprinkler cable.
● Sprinkler internal mechanics have been exposed to water.
Locate the connections of the sprinkler with high current and check to make sure they aren't wet. And, if they are, disconnect and dry connections. Reconnect. If issue persists, open a service case.
Check if you have a water error on any of your heads (replacement needed). Water in the head or connections will cause the current draw to increase and is almost likely the fault. Use canned air to blow out connections and see if errors clear.