Apex solenoid won’t stay on ‘Auto’

[P.kapp]

I’m having trouble with getting my apex solenoid to stay in auto mode. My 2 optical sensors are reading correctly, and I can keep the solenoid ‘on’ and let the emergency float valve stop RO water from overflowing the sump, but it just won’t stay in ‘auto’ mode. It just flips to off ever time. I’m wondering if my programming is wrong, or if I maybe have a bad FMM module? I have tried updating it and restarting it with no luck.

 

[blaxsun]

The "When On > 007:00 Then OFF" line is a kill code. If the pump runs for more than 7min it changes from AUTO to OFF. This is a safety feature to prevent the ATK from overfilling your tank.

You can try changing this to "010:00" to see if this helps. Switch it manually to ON to initially fill everything up until one or both of the optical sensors get tripped, then switch to AUTO (make sure you're on-hand to monitor).

 

[P.kapp]

The "When On > 007:00 Then OFF" line is a kill code. If the pump runs for more than 7min it changes from AUTO to OFF. This is a safety feature to prevent the ATK from overfilling your tank.

You can try changing this to "010:00" to see if this helps. Switch it manually to ON to initially fill everything up until one or both of the optical sensors get tripped, then switch to AUTO (make sure you're on-hand to monitor).

Thanks for the response! I will give that a shot

 

[P.kapp]

 

[P.kapp]

I’m still fighting this top off issue. I adjusted the time in the program, but I’m not sure if I’m still missing something?
Maybe a bad solenoid or module?

The top off line has a ro pump pulling out of the filter to help get more water through so it doesn’t take so long to top off. Maybe there’s an issue there..?

 

[Coolcasino]

You might not be letting 5 & 8 run out and they are doing what they are suppose to do. Remove lines 5 and 8. See if that makes the solenoid work properly.

 

[P.kapp]

You might not be letting 5 & 8 run out and they are doing what they are suppose to do. Remove lines 5 and 8. See if that makes the solenoid work properly.

Thanks for your response. I just changed the program. Hoping it works!

 

[Coolcasino]

Thanks for your response. I just changed the program. Hoping it works!

I dont see why not.

 

[Sisterlimonpot]

You have ao much going on in that code.

Perhaps it's best to know exactly what you want.

If you're wanting the solenoid to turn on when atk_lo is open and turn off when atk_hi closes, then you'll want to remove Set OFF. And the Defer statements are not needed.

If you want the solenoid to turn on when atk_lo is open and immediately shut off when it closes then leave everything the way you have it, the Defer statements will prevent the outlet from cycling constantly, although it might cycle more than you'd want anyway. If you're keeping it the same, the atk_hi sensor will never touch water unless your lo sensor fails. In essence the atk_hi will be a failsafe.

The WHEN statement is an all out shut everything down, double failsafe and will require you to manually switch the outlet from OFF to AUTO to get it back online.

If you're going to use the WHEN statement, I would suggest setting the time to something that won't trigger during normal operation. You don't want your ato to stop filling just because the ato is working properly.

 

[Sisterlimonpot]

After reading through the thread again, it appears that the solenoid is operating your actual RODI unit, and if that's the case and depending on the size of your return section, maybe 7 or 10 minutes isn't long enough for your rodi water to filter enough water in the alloted time.

Now, if you do have your rodi configured to cycle on and off as water evaporates, you're going to have some serious TDS creep and would advise going a more traditional route so that you avoid burning through DI resin. I'd advise making enough water to last you at least a couple of days and have a pump top off into your sump instead.

 

[P.kapp]

Thanks for everyone’s help! Since I deleted the 5th and 8th lines it has been great!