Pentair Autotrol Performa 400 Series User Manual (English)

Questions and Answers:

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Nathan FriedmanSep 7, 2025
Why doesn't the clock on my Pentair Autotrol Performa 400 Control Unit display the time of day?
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  john77Sep 7, 2025
  If the clock on your Pentair Control Unit isn't displaying the time of day, several things could be wrong. The transformer cord might be unplugged, so connect the power. There might be no electric power at the outlet, so repair the outlet or use a working outlet. The transformer might be defective, so replace it. Finally, the circuit board might be defective, so replace the timer.
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Carrie WellsSep 8, 2025
What to do if my Pentair Autotrol Performa 400 Control Unit will not regenerate automatically or when the button is pressed?
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  James WatsonSep 9, 2025
  If your Pentair Control Unit won't regenerate automatically or when the button is pressed, several issues could be at fault. The electric cord might be unplugged, so connect the power. There might be no electric power at the outlet, so repair the outlet or use a working outlet. The motor might be defective, so replace the timer. A gear might be broken, so replace the timer. There could be binding in the gear train, so replace the timer. Finally, the switch might be defective, so replace the timer.
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Shannon MaddoxSep 10, 2025
Why is the timer on my Pentair Control Unit stalled in the regeneration cycle?
- H
  higginsjasonSep 10, 2025
  If the timer on your Pentair Control Unit is stalled in the regeneration cycle, several issues could be the cause. The motor might be dead or running backward, a gear could be broken, the switch might be defective, or the circuit board could be defective, in all of these cases replace the timer. There might be no electric power at the outlet, so repair the outlet or use a working outlet. There might be an air leak in the brine connections, so check all junction points and make appropriate corrections. The camshaft might be binding, so remove any foreign object obstruction from the valve discs or camshaft. Finally, the water pressure might be greater than 125 psi during regeneration, so install a pressure regulator.

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