JBJ ATO need help

[Xclusive Reef]

ok soooo I have the JBJ ATO and it's driving me nuts. I am trying to set it up where it has sensor 1 as primary and 2nd sensor is backup ii case 1st fails. I have removed the pin and flipped the sensor.

Well the 2nd switch is doing nothing if the ato is running and i raise the 2nd float it will do nothing at all.

WHAT AM I MISSING????

 

[cromag27 Verified Sponsor]

sounds like a bad controller or bad float switches. do the lights toggle on and off.

 

[Xclusive Reef]

sounds like a bad controller or bad float switches. do the lights toggle on and off.

not when they both connected. I tested both floats 1 and then 2 and each work but not together. and yes i have it on the correct setting mode B

 

[cromag27 Verified Sponsor]

not when they both connected. I tested both floats 1 and then 2 and each work but not together. and yes i have it on the correct setting mode B

sounds like a bad controller. i have used those many years ago and always hated them.

 

[Xclusive Reef]

sounds like a bad controller. i have used those many years ago and always hated them.

dang wish i knew before i dropped 50 bucks on the avast pump..

 

[cromag27 Verified Sponsor]

dang wish i knew before i dropped 50 bucks on the avast pump..

https://spectrapure.com/DOSING-TOP-OFF/AUTO-TOP-OFF-SYSTEMS

 

[cromag27 Verified Sponsor]

had to refresh my memory a little on how this unit works. i don’t believe it’s possible to do what you want.

 

[Xclusive Reef]

had to refresh my memory a little on how this unit works. i don’t believe it’s possible to do what you want.

There is a youtube video that shows how to set one as primary and the 2nd as a backup incase first float fails.

 

[cromag27 Verified Sponsor]

There is a youtube video that shows how to set one as primary and the 2nd as a backup incase first float fails.

that would be mode b i believe. you want to make sure you have the sensors in the proper place. float 1 has to be max and float 2 has to be min.

 

[Xclusive Reef]

that would be mode b i believe. you want to make sure you have the sensors in the proper place. float 1 has to be max and float 2 has to be min.

thanks for the feedback bud I appreciate it. I have tried all ways possible on modes A/B and nothing