Confused About Relay Lights on your DCR Controller?

DCR-1005 pump controller

If you use the DCR controller, such as the 1003/4 or the 1005/6, you may find yourself looking at blinking lights for relays that aren’t being used. It does NOT mean that something is wrong; it simply means that some default settings need to be changed to deactivate the unused relay.

Keep in mind that the controller is functioning properly, and will continue to do so even if unused relays are not deactivated.