Neptune ATO acting up....WHY?

[RussC]

Folks, could I get a little help on diagnosing my ATK problem. I've noticed over the last couple of months my pump started shutting off for no apparent reason and I'd get an ATK error. At first I thought it was running too long and my code was turning it off and causing the error. I made some adjustments and still , The pump continued to turn off, I'd get an error. I'd have to go into APEX and turn it back on. Now its gotten worse. The low water sensor is open and the pump will not turn on. This problem has now caused my return pump chamber run low last night. And now to get the ATO pump to turn on, I have to manually turn it on through my phone.

What's up? Any thoughts?

Here's my programming for the ATK:
Fallback OFF
Set OFF
IF LoWtr1 OPEN Then ON
if HiWtr2 CLOSED Then OFF
If FeedD 000 Then OFF
When On > 006:00 Then OFF
Defer 000:10 Then ON
Defer 000:04 Then OFF
Min Time 060:00 Then OFF
If Output RetPump_2_3 = OFF Then OFF

 

[Asonitez]

Here are some things to try. Any Or all of these MIGHT be the culprit.

Depending on the size of your tank

Make sure the Line into the sump area is not inserted ALL the way down into the elbow. It should go to just at the bottom of the threads on the compression adapter.
Set the MIN Time in your programming from 60 minutes to 30:minutes. This will make your ATO check every 30 minutes to refill vs every 60 minutes. Neptune built
60 minutes into the programming to save the PMUP but depending on the size of your tank or evaporation 30 minutes is appropriate.

Test the Sensors by submerging them under water they should switch correctly to CLOSED.
Remove the Sensors and they should switch to OPEN
This "status" switching on FUSION can be delayed by QUITE a bit so I would do it while looking at the apex locally vs on fusion.
Adjust the FLOAT so that it puts pressure on the shutoff when your water is at the correct level. You can test this by blowing into the line into the
sump until you encounter difficulty due to the float switch. I wouldn't do it by water because its normal for the float to GRADUALLY work its way up to
a fully CLOSED position and just encountering some resistance is usually enough to stop the siphon if one is created.


I had a similiar issue with my ATO aver switching it to my new build. I found that I had inserted the ROtubing into the elbow too far, I also found that my float
was set too sensitive which was causing my pmup to run LONGER than necessary to fill the tank because the float was restricting the water and the water
was putting backpressure on the PMUP while pumping because of the elbow.

Finally enable logging on the PMUP to see how many times it Turns/On Turns off and monitor it for 24hrs.

I made these changes thinking my optical sensors were fubared but now my ATO has been running for 2 days without fail.

 

[Asonitez]

duplicate-plz delete

 

[Asonitez]

duplicate - plz delete

 

[RussC]

Several great suggestions. Thanks!

Here are some things to try. Any Or all of these MIGHT be the culprit.

Depending on the size of your tank

Make sure the Line into the sump area is not inserted ALL the way down into the elbow. It should go to just at the bottom of the threads on the compression adapter.
Set the MIN Time in your programming from 60 minutes to 30:minutes. This will make your ATO check every 30 minutes to refill vs every 60 minutes. Neptune built
60 minutes into the programming to save the PMUP but depending on the size of your tank or evaporation 30 minutes is appropriate.

Test the Sensors by submerging them under water they should switch correctly to CLOSED.
Remove the Sensors and they should switch to OPEN
This "status" switching on FUSION can be delayed by QUITE a bit so I would do it while looking at the apex locally vs on fusion.
Adjust the FLOAT so that it puts pressure on the shutoff when your water is at the correct level. You can test this by blowing into the line into the
sump until you encounter difficulty due to the float switch. I wouldn't do it by water because its normal for the float to GRADUALLY work its way up to
a fully CLOSED position and just encountering some resistance is usually enough to stop the siphon if one is created.


I had a similiar issue with my ATO aver switching it to my new build. I found that I had inserted the ROtubing into the elbow too far, I also found that my float
was set too sensitive which was causing my pmup to run LONGER than necessary to fill the tank because the float was restricting the water and the water
was putting backpressure on the PMUP while pumping because of the elbow.

Finally enable logging on the PMUP to see how many times it Turns/On Turns off and monitor it for 24hrs.

I made these changes thinking my optical sensors were fubared but now my ATO has been running for 2 days without fail.