Quick answer: If sprinklers continue running with the controller set to off, the problem is often at the irrigation valve rather than the watering schedule. A valve may be stuck open, manually opened, contaminated internally or unable to seal. Controller off versus water off Turning the controller off stops normal electrical commands. It does not…

Quick answer: Multiple sprinkler zones running together can be caused by valves that are not closing, wiring faults, incorrect field-wire connections, controller configuration, or hydraulic problems that allow water through more than one valve. Start with the controller Run zones manually one at a time and note whether the controller indicates only the selected station.…

Quick answer: A sprinkler zone that keeps running after the controller stops calling for water usually points to a valve that is stuck open, contaminated internally, mechanically damaged, or being held open by an electrical/controller issue. First: stop unnecessary water flow If water is running continuously and causing flooding or property damage, use the irrigation…

Quick answer: When every sprinkler zone works except one, the failed zone usually has a problem specific to its valve circuit or water path. Common possibilities include a damaged zone wire, failed solenoid, stuck valve, closed flow control, leak, blockage or pressure problem. What the symptom tells you A single dead zone is useful diagnostic…

Quick answer: A sprinkler system that will not turn on can be caused by a controller setting, loss of power, a rain or weather sensor, damaged field wiring, a failed solenoid, a closed water supply, or a valve that is not opening. The fastest diagnosis starts by determining whether the problem affects the entire system…