I ge a 6521 Rev HH Error on my Jandy RSA All Button Controler

SOURCE: On My Jandy Aqualink display I am getting a read

it either means your water sensor is bad its the little probe thats clamps ontop of pvc with the probe inside of it, or it simply could have been unpluged somehow from the back of the outside control board it will be on the far left side its a a two wire red and black on the green strip plug

Testimonial: "Fairly quick response and accurate. Thanks"