Pentair Autotrol Performa 400 Series User Manual (English)

Questions and Answers:

C
cclarkeAug 21, 2025
What to do if the brine tank overflows in my Pentair Control Unit?
- Q
  qmcculloughAug 22, 2025
  A brine tank overflow in your Pentair Control Unit can occur for several reasons. The brine valve (1) might be held open; try manually operating the valve stem to flush away any obstruction. An uncontrolled brine refill flow rate could also be the cause; in this case, remove the variable salt controller to clean it. Alternatively, valve (3 or 4) might not be closed during brine draw, causing a refill; flush out any foreign matter by holding the disc open and manually operating the valve stem. Finally, an air leak in the brine line could be the culprit; check all connections in the brine line for leaks.
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laurieatkinsAug 23, 2025
Why is my Pentair Control Unit not drawing brine?
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  transamuelAug 23, 2025
  If your Pentair Control Unit isn't drawing brine, several issues could be the cause. First, check for low water pressure and set the pump to maintain 30 psi at the conditioner. A restricted drain line could also be the problem; remove any restrictions. Additionally, the injector might be plugged; clean the injector and screen. If the injector is defective, replace it. Lastly, ensure valve (2 and/or 4) is closed; remove any foreign matter from the disc and check the disc for closing by pushing in on the stem, replacing it if needed.
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Maurice McdonaldAug 25, 2025
What to do if there is no conditioned water from my Pentair Control Unit after regeneration?
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  mark69Aug 25, 2025
  If you're not getting conditioned water after regeneration with your Pentair Control Unit, there might be a few reasons. First, check if the unit actually regenerated by checking for power. Another reason could be that there's no salt in the brine tank, so add salt. Lastly, the injector might be plugged; try cleaning the injector and flushing it with water.
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Jimmy StewartAug 26, 2025
How to fix a Pentair Control Unit that will not regenerate automatically?
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  Paige CohenAug 27, 2025
  If your Pentair Control Unit isn't regenerating automatically, there could be a few potential causes. First, check if the transformer or motor is not connected and connect the power. If that's not the issue, the timer motor might be defective, requiring replacement. Also, make sure the skipper pins are down on the timer skipper wheel for the days regeneration is required. Finally, there could be binding in the gear train of the timer, in which case you should replace the timer.
K
kburnettAug 27, 2025
Why is my Pentair Autotrol Performa 400 Control Unit leaking hard water during service?
- D
  Daniel DuncanAug 27, 2025
  If you're experiencing hard water leakage during service with your Pentair Control Unit, it could be due to a few reasons. The regeneration might be improper, so repeat the regeneration, making certain that the correct salt dosage is set. There might be leaking of the bypass valve, in this case replace the o-ring. Finally, the o-ring around the riser tube might be damaged, so replace the o-ring.
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Jennifer DanielsAug 29, 2025
What causes a Pentair Autotrol Performa 400 to use more or less salt than set?
- R
  Robert RiceAug 29, 2025
  If your Pentair Control Unit is using more or less salt than the salt control is set for, it could be due to several reasons. The setting might be inaccurate, so correct it. Foreign matter in the controller could be causing incorrect flow rates; remove the variable salt controller and flush out the foreign matter. Manually position the control to brine draw to clean the controller, and then position the control to 'purge' to remove brine from the tank. Finally, the controller might be defective, so replace it.
B
Brian GilbertSep 1, 2025
Why is there flowing or dripping water at the drain or brine line of my Pentair Autotrol Performa 400 after regeneration?
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  Mary PachecoSep 1, 2025
  If you notice flowing or dripping water at the drain or brine line after regeneration in your Pentair Control Unit, it could be due to a couple of reasons. The drain valve (5 or 6) or brine valve (1) might be held open by foreign matter or a particle, so manually operate the valve stem to flush away any obstruction. Alternatively, the valve stem return spring on the top plate might be weak, so replace the spring.
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Larry HarmonSep 2, 2025
How do I fix my Pentair Autotrol Performa 400 Control Unit if it regenerates at the wrong time of day?
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  debbie42Sep 3, 2025
  If your Pentair Control Unit is regenerating at the wrong time of day, it could be due to a couple of reasons. Power outages might be the cause, so reset the clock to the correct time of day. Alternatively, the clock might be set incorrectly, so reset the clock to the correct time of day.
S
Samantha TaylorSep 4, 2025
Why is the brine draw intermittent or irregular in my Pentair Autotrol Performa 400 Control Unit?
- S
  Sarah BrennanSep 4, 2025
  If you're experiencing intermittent or irregular brine draw with your Pentair Control Unit, it could be due to a couple of reasons. Low water pressure might be the cause, so set the pump to maintain 30 psi at the conditioner. Also, the injector might be defective, so replace both the injector and injector cap.
Q
qjohnsonSep 5, 2025
What causes my Pentair Autotrol Performa 400 to backwash at an excessively low or high rate?
- J
  janetsummersSep 5, 2025
  If your Pentair Control Unit is backwashing at an excessively low or high rate, it could be due to a couple of reasons. An incorrect backwash controller might be in use, so replace it with the correct size controller. Foreign matter might be affecting the controller operation, so remove the controller and ball and flush with water.

Pentair Autotrol Performa 400 Series Specifications

General

Model Series	Performa 400 Series
Control Type	Electronic
Timer Type	Microprocessor-based
Operating Pressure	20 - 125 psi
Manufacturer	Pentair
Service Flow Rate	20 GPM
Operating Temperature	33-120°F
Valve Material	Noryl
Drain Line	1/2" ID
Brine Line	3/8"
Power Supply	Transformer
Electrical	24V AC, 50/60 Hz
Cycle Options	Backwash, Brine Draw, Slow Rinse, Refill
Display	LCD display
Backup Power	Battery backup
Compatibility	Water softeners, filters
Inlet/Outlet	1" NPT
Valve Port Size	1" NPT