Question on my 6105s

[Foothill Corals]

I have two new 6105 pumps that have been up and running for a few months now. My question is on the controllers. The red light next to the "pulse 2-10s" button on one controller is blinking and on the other it is lit solid red. Both have done this since day one. I was just wondering why and if this is indicative of a problem? It also doesn't change if they are linked with a cable or not.

 

[rvitko]

It just means one is set in inverse mode so if they are paired and the blinking one is in external it will do the opposite of the main pump.

 

[Foothill Corals]

Thank you