Irrigation systems utilize a 24VAC electronic signal to initialize a valve's solenoid. Even though the system is low voltage, it is still always recommended a trained professional perform these tests.   … Using the AC voltage reading on your voltmeter, …

Non-volatile memory is a feature on all Hunter controllers, back up memory is stored with the assistance of a lithium battery installed inside the controller. This lithium battery is replaceable on these model controllers: I-Core, X-Core, EC, & XC. On all …

The sprinkler icon flashes when the controller is outputting power to the station terminal or terminals activating a station (see fig.1).  If the icon is blinking with an umbrella on the display (see fig.2),  the rain sensor’s circuit has been broken and …

These tables are designed for quick reference and are set up to provide maximum wire runs, given the information at the bottom of the table. Maximum one-way distance in feet between controller and valve heavy-duty solenoid: 24 VAC, 350 mA inrush current, …

A common reason for a controller to repeat a cycle is too many programmed start times. Only one start time per active program is required, a second start time will cycle the program an additional time. NOTE: In the Start Times dial position, the numbers …

There are a number of reasons why the sprinklers may not come on from the automatic program.  Assuming the controller will run the zones from the controller manually, you most likely have a programming issue.  Below are a few possible causes to the …

If you want to run separate stations (or zones) on different days, you would use 2 different programs.  Hunter controllers have multiple programs (A, b, and C) and the ability for each program to have multiple start times.  To set up each program, you …

If the controller display shows a station running, flashing sprinkler icon (  ),  or an arrow pointing towards running, it sounds like the controller is doing its part. Maybe the water has been shut off to the zone valves. Go to the zone valve and turn …

Here is a list of the error codes and ways to troubleshoot them: … CAUSE -   The Station # ERR (for example 1 ERR) is a diagnostic message that appears when your controller is detecting a fault on that corresponding irrigation zone. SOLUTION - To …