Pump Start Relays

Installing a pump start relay typically requires wiring the relay to both the irrigation controller and the water pump. If you are experienced with electrical work and familiar with irrigation systems, you may be able to install the relay yourself. However, because the relay involves high-voltage components, it is generally safer to hire a professional to ensure that it is correctly installed and wired.

The most common causes of pump start relay failure are similar to other errors you might see with complex electrical setups. Sudden surges in electrical current and short circuits are both possible. Over time, the electrical contacts inside the relay can also wear out due to frequent cycling of the pump. Inspect the relay and associated wiring periodically to ensure there are no signs of wear, corrosion, or overheating.