Why do I keep getting this error code?

[Yates273]

Every hour I keep getting this error code from my Fmm. Any ideas. I have it setup for an ATK but I currently don’t have it running due to not having a power supply yet. As of right now the o my thing plugged into this FMM module are 2 Aqua bus cables.

 

[SuncrestReef]

What is the error?

Also, please post the programming from your EmailAlm output.

If you have the ATK set to AUTO but don't have the power adapter connected, then it will report an error if it's trying to refill but the water level is still low after 5 minutes. Set the output to OFF until you have the power adapter.

See my ATK Tutorial for details on how it's designed to work and what each line of code does:
https://www.reef2reef.com/ams/neptu...torials-part-3-automatic-top-off-kit-atk.692/

 

[Yates273]

That has to be the problem then. There is currently no power supply hooked up and looking at the alarm codes looks like that’s it. I set up the ATK using task menu guess that’s useless without the power supply.