Osmolator 3155 stopped working

Pittsburgh

New member
Well, the unit is about 6 weeks old. Worked great and was more then I could ever wish for. Its sensors were mounted in sump and the controller was outside the tank stand.

One day I decided to relocate the sump and so I had to move the Osmolator as well. Sensors are mounted on a removable plastic plate inside the sump, so moving things around was a breeze. When I reassembled everything back and plugged in the controller, the "too low" LED would constantly blink and the "too high" LED would stay lit. All other LEDs would stay off. The alarm sound would also be on.

I got scared that I somehow damaged the unit (almost $200 after all...). I took the sensor plate out, put it back in, plugged the controller again and it started working just fine. I figured the controller got confuzed after relocation and needed a good reset.

Last night I relocated the sump to its final place in my basement. And sure enough, after plugging the osmolator, again, it showed same behavior as far as LEDs and sound. But this time, no matter what i do to the sensor plate, it wont start working.

I read the troubleshooting section of the manual, it says that if both LEDs are on, it means the controller is damaged by water, needs a replacement and it wont be covered by warranty. Well... I dont quite have both LEDs on, one of them is blinking, and the unit itself never got into contact with water, not even a drop.

I was wondering what this LED configuration really means and if there is a way to fix it.

I own many tunze products, this osmolator was my latest addition as I trust the brand. I sure hope there is a logical explanation as to what is happening to the unit.
 
Here it goes again!

In a desperate attempt to get the top off to work, I removed the sensors from the plate, took the controller, the sensors and the pump upstairs, let it sit for awhile. Came back after sending the previous post, plugged in the controller, it worked! Unplugged, plugged in again, again two red LEDs and the alarm. Unplugged, plugged in again, it started the pump! Great! I thought i got it. Took it downstairs, assembled in the sump, plugged in, again the two red LEDs and the alarm! Dammit... no matter what i did, it wouldn't work.

Well, I dont give up easily. So I disassembled it again, took upstars, laid out on the table, let it sit like that for another half an hour or so. Came back, plugged in, it worked! Again, took it downstairs, started assembling, but checked if the unit still works after each step of assembly (sensors mounted, checked, pump in place, checked, sensor plate in place checked, etc.). Then and only then the controller started working as normal after all pieces were assembled.

I still don't know what happened or what those two red LEDs together mean, but I got my controller to work again. It looks like a sensor causes a short of some sort if it gets really wet. But I thought sensors are expected to get into contact with salt water :)
 
This indicates an error, the controller is getting a too high signal and a too low signal. Besides water damage there are two other probably culprits. The float switch is hung up on something, or the float switch or the controller is near a strong magnetic field like a ballast, magnet holder or cleaner or large external pump. Relays in the controller and the float switch both work on magnets so magnetic fields affect them.
 
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