Swg turning off prematurely ??

[Themacdadt]

New main board, older tcell 15, I have my timer set for 12pm to 8pm @ 70%. Did a super chlorinate for 10 hours last nite and it raised level 6ppm. Went out and looked at my diagnosis screen and it said CHLORINATOR OFF,PERCENTAGE MET. so at 2 hours into my 8 hour cycle in turned off the swg. That is way less than 70%. (All levels are in range)
Anyone know why this would happen? Anyone experienced this issue? Would a tcell on its way out cause this?
Thanks

 

[Jimrahbe]

Todd,

The cell turns off and on the entire time it is running... At 50% the cell will be on half the time and off half the time.. My Pentair cell will be on for 2.5 minutes and then off ofr 2.5 minutes.. I think the T-Cells have a much longer cycle time, something like 90 minutes, but I'm not sure of the exact time.

In any case, it has no clue how long you are going to run it, so it can't know what 70% of an unknown is... I suspect your cell is working just fine.

Thanks,

Jim R.

 

[Themacdadt]

I understand that, but normally when it’s on the rest or reverse polarity stage it shows Zeros on the reading.

If I’m not mistaken when it reads “ chlorinator off percentage met” it will not come back on till next scheduled startup.

 

[Jimrahbe]

Let's see what @JamesW has to say...

Jim R.

 

[JamesW]

It's a 180 minute cycle. At 70%, it's generating for 126 minutes and then not generating for 54 minutes.

Then, it reverses polarity and begins to generate again for 126 minutes.

When not generating, the amps and instant salinity will be zero.

 

[Themacdadt]

That’s what I thought, BUT after 2 hours it said chlorinator off percentage met. So what would make it shut down for the rest of the 6 hours it should be cycling in?

 

[JamesW]

That's just how it works. It will say that and then it will turn back on at the end of the 180 minute cycle. It will keep going through cycles as long as the pump is on.

 

[Themacdadt]

In the rest cycle and revere cycle it reads zeroes like you say, but when it says chlorinator off percentage met there is no readings. Like if you were looking at the diagnosis menus outside of run times.

 

[JamesW]

It's a 180 minute cycle. At 70%, it will generate for 126 minutes and then it will stop generating for 54 minutes.

While not generating, it will say chlorinator off, percentage met.

During the non generating period, the amps and instant salinity will be zero.

Then, it will reverse polarity and a new 180 minute cycle will begin.

This will continue as long as the pump is on.

 

[Themacdadt]

Ok, I will go out and look at those intervals and check.
Thanks for the explanation

 

[Themacdadt]

It did just what you said. I guess my cell is getting old and tired..

 

[JamesW]

The best way to evaluate an Aquarite cell is to divide the instant salinity by the actual salinity.

For example, if the instant salinity shows 3,000 but the actual salinity is 3,600 ppm, the cell is at 83% efficiency.

Above 75% is acceptable. Below 75%, it's probably time for a new cell.

You need to be really sure about the actual salinity for the test to be valid.

I recommend the K-1766 salt test kit.