GHL ATO

[Ken Cyrus]

My Profulux 4 not turning on my ATO anymore, the pump is working in the regular outlet, so it’s not the pump.
Any ideas, also no alarm in the P4.

 

[reefwiser]

What pump are you using? An what type of switch float or optical.
Have you moved th P4 at anytime recently?
I had this happen once when I moved the ProfiLux a little and the plug for the float switch came a little loose so it wasn’t connected. If using a doser for ATO you could need to replace the tubing inside the pump head. Had this happen too. It will lose prime when this happens.
Make sure your switch is clean you switch
I have to clean mine every few weeks as I am using the float one currently and stuff can build up and clean it off.

 

[Ken Cyrus]

I am using the Innovative Marine HydroFill Ti – ATO Return Pump and GHL float switch, (maybe I should add the GHL optical switch also)
I did'nt think about checking the plug for the float switch, I am at work now so I will check it when I get home.
Thanks for your suggestion.

 

[reefwiser]

Just thinking of all the different was I have had the ATO to stop working.