Troubleshooting - Pentair Autotrol Performa 400 Series Service Manual

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The technology upon which the Autotrol Performa control valve
is based is well established and proven in service over many
years. However, should a problem or question arise regarding
the operation of the system, the control can very easily be
serviced. For parts mentioned, refer to exploded views in the
Replacement Parts section of this manual.
IMPortANt: Service procedures that require the water
pressure to be removed from the system are
marked with a ! after the possible cause. to
remove water pressure from the system, put
the bypass valve or three-valve bypass into the
bypass position and open the backwash drain
valve (the seventh valve back from the control)
with a screwdriver. restore system water
pressure when the service work is completed.
Valve troubleshooting
Problem
Control will not draw brine.
Brine tank overflow.
System using more or less salt
than salt control is set for.
Intermittent or irregular brine
draw.
No conditioned water after
regeneration.
Control backwashes at excessively
low or high rate.
Flowing or dripping water at drain
or brine line after regeneration.
Hard water leakage during
service.
16 • Autotrol
Performa Valve with 400 Series Control water Conditioning Control System
®
Cause
Low water pressure.
Restricted drain line.
Injector plugged !
Injector defective !
Valve (2 and/or 4) not closed.
Brine valve (1) being held open.
Uncontrolled brine refill flow rate !
Valve (3 or 4) not closed during brine draw
causing refill.
Air leak in brine line.
Inaccurate setting.
Foreign matter in controller causing incorrect
flow rates !
Defective controller.
Low water pressure.
Defective injector !
Unit did not regenerate.
No salt in brine tank.
Plugged injector !
Incorrect backwash controller used.
Foreign matter affecting controller operation !
Drain valve (5 or 6) or brine valve (1) held open
by foreign matter or particle.
Valve stem return spring on top plate weak.
Improper regeneration.
Leaking of bypass valve !
O-ring around riser tube damaged !
Correction
Set pump to maintain 30 psi at conditioner.
Remove restriction.
Clean injector and screen.
Replace injector.
Remove foreign matter from disc and check disc for
closing by pushing in on stem. Replace if needed.
Manually operate valve stem to flush away obstruction.
Remove variable salt controller to clean.
Flush out foreign matter by holding disc open and
manually operating valve stem.
Check all connections in brine line for leaks. Refer to
instructions.
Correct setting.
Remove variable salt controller and flush out foreign
matter. Manually position control to brine draw to
clean controller (after so doing, position control to
"purge" to remove brine from tank).
Replace controller.
Set pump to maintain 30 psi at conditioner.
Replace both injector and injector cap.
Check for power.
Add salt.
Clean injector. Flush with water.
Replace with correct size controller.
Remove controller and ball. Flush with water.
Manually operate valve stem to flush away obstruction.
Replace spring.
Repeat regeneration making certain that the correct
salt dosage is set.
Replace o-ring.
Replace o-ring.