Hi, I have a P4 and also a doser 2.1 which recently I decided to use as ATO given I had one spare head. My daily evap is around 2,0 liters.

After working for a couple of days it suddenly stoped working without warning. The only reason I noticed was because I was looking at the Connect app and all my sensor readings were wrong as the probes were exposed to air. The pump itself is working ok, but it had simply stoped working.

I reset it and it was working again. Went on vacation and two days later my probe settings were already wrong, as the ATO stopped working again. Fortunate.y I could ask my housekeeper to top of with fresh water until I arrived.

Any idea why this happened? I bought a small pump and am now using the P4 to control the ATO, which is working perfectly. But I would like to use the doser and eliminate the extra pump and plu.

Kind regards

Vasco


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