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Discussion Starter · #1 ·
Hey,

Google keywords are failing me. I woke this morning to my Hydor ATO beeping. Before I got into the room I was imagining a flood or broken return pump or something terrible.

I was happy to find everything working as expected except for the ATO.

It's beeping with all the lights on solid. I've tried unplugging/plugging, on/off. The ATO pump works when I plug it directly into the wall.

When I turn it on, it flashes for a bit, then immediately goes into beeping. Water does appear to be touching the min level prong.

Anyone seen this before? Any suggestions?

Thanks!
 

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It's low level warning fill it up full and the beeping will stop.
 
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