ATK help?

[CHIEF_OF_THE_REEF]

Just bought an ATK a few days ago. finally have it figured out and last night he has seemed to stop working. I feel it may be a faulty sensor but I want to confirm this first.

I get an email that says error.

The ATO slider moves to off.

Looking at the tiles it shows both the high and the low sensor open. I have unplugged the sensors and plugged them back in, last night when it did this I was able to get it working like it should but this morning it has malfunctioned again. I really need to know what the next steps are here for troubleshooting this. I will try and clean the sensor off again and see if that helps it out. Here is a picture of the ATO and I will copy and paste the configeration here. Any help?

Fallback OFF
Set OFF
If ATO_L OPEN Then ON
If ATO_H CLOSED Then OFF
When On > 004:00 Then OFF
Defer 000:20 Then ON
Defer 000:04 Then OFF

 

[CHIEF_OF_THE_REEF]

Got it figured out, Unit ran for 4 minutes then shut itself off.

 

[SuncrestReef]

Read my ATK tutorial for details on each line of code and how it’s designed to work. I also provide a list of troubleshooting steps in case you have any more problems:

https://www.reef2reef.com/ams/neptu...torials-part-3-automatic-top-off-kit-atk.692/