Osmolator false alarm

[skidrow52]

I've been using the Osmolator since 4 years, since a few days whenever I get home from work I hear the alarm beep and the Hi Light is lit , i power cycle to restore the Osmolator, i have tried cleaning the sensor which didn't help, and its repeating every day almost, when I used to have this issue earlier I used to clean the sensor and it would always work fine. I am in Saudi Arabia but I bought the Osmolator from USA.

Please advise what shall I do , to get rid of this issue temporarily I have connected the power supply to a timer so it will turn of every few hours if there is an alarm when i am not home

 

[rvitko]

Are you sure the light that is lit is too high? Is that the only light that is lit?

 

[skidrow52]

Yes that's the only light which turns on with the beep, pump is working fine no issues with pump, I soaked the sensor in vinegar today for one hour and then cleaned it and put it back let's see if it repeats

 

[rvitko]

The too high is caused only by the float being raised or a problem with the float switch, possibly it is broken, shorted or affected by a magnetic field, the optic sensor would not be part of this problem.

 

[skidrow52]

It is as it is, nothing changed in all these years, can i replace it ?

 

[rvitko]

Yes, if you can solder you would need part 3152.300, you would cut off the plug and solder the wires to the board. My best suggestion though is to send the controller to Tunze Germany (closer to you) for repair, this is an odd problem, the floats rarely fail, while floats are failure prone, since it is only a back up on the 3155 and rarely submerged or used, they tend to last a very long time. In the 14 years I have done this job I can only recall changing a half dozen floats. I think it is best to get them checked out

 

[skidrow52]

I have noticed it today only that when the Hi light is ON with the beep sound the, low light is red and flashing

 

[rvitko]

Generally if the too high and too low are on this indicates water damage, the most common being caused by plugging in a wet power supply tip which will cause some corrosion where the power connects on the board. I would open the controller and inspect it.

 

[skidrow52]

I opened the controller and found it clean like new no signs for corrosion as it is away from saltwater, what else you suggest

 

[rvitko]

The corrosion will generally be very subtle, the usual cause is plugging the power supply tip in wet, look at the power supply socket for any green or white corrosion, look at the edges of the power supply socket on the board for any white streaks. Typically this is where this issue occurs.

 

[skidrow52]

Many thanks for your replies, its also very clean no signs of any green or any kind of corossion

 

[rvitko]

I would contact Tunze Germany about sending it in, unless you will be in the US soon and could send it to me.

 

[skidrow52]

Thanks a lot for that offer, I will need some kind of replacement thats the problem as I live in a dry land area and evaporation is very high here. Today I moved away the controller and its in a different place, and change the position of the sensor and float switch too. Will you be coming to MACNA in DC ?

 

[rvitko]

Yes, I will have a booth at MACNA DC.