Problems with Tunze Osmolator Nano

[OrokuSaki84]

Hi guys!

I've been having some intermittent issues with my ATO (Tunze Osmolator). From time to time I come home and the ATO isn't doing its job. I check the float sensor, and its never gunked up and always able to move freely. I do have the Osmolator control by my Apex. I run Kalk in my reservoir and use the program below to safeguard my pH:

Fallback ON
If pHx2 > 8.35 Then OFF
If pHx2 < 8.30 Then ON

I'm pretty sure the code is good. Whenever I turn off power to the Osmolator and click it back on, it jumps back to life filling the tank back up until it reaches the float sensor. Its been annoying since I'm constantly checking the level in the back of the tanks return chamber. Curious if anyone else had this problem or has any insight! Thanks!

 

[Bouncingsoul39]

Sounds like the timer safety for it is being triggered. It will only run for so long then it auto shut offs.

 

[OrokuSaki84]

That was what I initially thought - but I'm not seeing the pH rise/spike before it stops working like I would expect if it was running for more than a minute.

 

[Gator1970]

That was what I initially thought - but I'm not seeing the pH rise/spike before it stops working like I would expect if it was running for more than a minute.

I had a nano osmolator - I think the mechanical switch is defective - I went back to the regular osmolator with the optical sensor and mechanical switch as a back up.