This section will describe some troubleshooting procedures that will determine if the controller is indeed the bad component in the irrigation system. The controller is usually the first component blamed from an irrigation system failure. Typically, once the controller has been removed and taken to a repair facility, a conservative estimate is that 25% are returned without a defect being found in the controller. Before removing the controller it is recommended that the following are checked:
Programming - A program consists of three steps:
Start time - The time of day that the irrigation should begin.
Run time - The irrigation duration for each station.
Days on - The day that the irrigation will operate.
**If any of these steps are missing, the controller will not activate the valves.**
Auto/Off switch - This switch must be in the AUTOMATIC or ON position in order for the controller to operate.
Sensors - If the controller is equipped with a rain sensor or moisture sensor, the program will not run if they have been activated.
RC 8 series
RC 11 series
RC-12, 18, 23 series
This section will be divided into two sections in order to give more accurate troubleshooting tips.