UV driving my Tunze ATO crazy!

[spiderguardnano]

Hey everyone, hope you’re all doing well! I recently installed the latest version of the Tunze ATO along with a 57W UV sterilizer. Ever since the install, the ATO pump has been going crazy—constantly turning on and off.





I spoke with Roger at Tunze, and he mentioned the UV ballast is likely interfering with the ATO due to frequency issues. He recommended keeping the cords completely separated, with none touching, and spacing the units as far apart as possible.





Has anyone else run into this problem or have any suggestions on how to fix it?

 

[JohnBRZ]

so the ATO works fine when the UV is off? not sure which UV you're using but the light is not shinning on the ATO sensor, correct?
I'm using the Osmolator 3 on my 15g with UV from Innovative marine with no issues.

 

[Jimbo327]

Roger is pretty knowledgeable so it's probably right. You can trying shielding the wires or ballast with some faraday fabric, but not sure if it will work. Probably try buying some from Amazon, and return if it doesn't work.