Pentair Fleck 4650 - TROUBLESHOOTING

TROUBLESHOOTING
Problem Possible Cause Solution
Softener fails to regenerate Electrical service to unit has been interrupted. Ensure permanent electrical service (check fuse, plug,
pull chain or switch).
Timer is defective. Replace timer.
Power failure Reset time of day.
Softener delivers hard water Bypass valve is open. Close bypass valve.
No salt in brine tank. Add salt to brine tank and maintain salt level above water
level.
Injectors or screen plugged. Replace injectors and screen.
Insufcient water owing into brine tank. Check brine tank ll time and clean brine line ow control
if plugged.
Hot water tank hardness. Repeated ushings of the hot water tank is required.
Leak at distributor tube. Make sure distributor tube is not cracked. Check O-ring
and tube pilot.
Internal valve leak. Replace seals and spacers and/or piston.
Unit uses too much salt Improper salt setting. Check salt usage and salt setting.
Excess water in brine tank. See problem Excessive water in brine tank below.
Loss of water pressure Iron buildup in line to water conditioner. Clean line to water conditioner.
Iron buildup in water conditioner. Clean control and add resin cleaner to resin bed.
Increase frequency of regeneration.
Inlet of control plugged due to foreign material
broken loose from pipes by recient work done on
plumbing system.
Remove piston and clean control.
Loss of resin through drain line Air in water system. Ensure that well system has proper air eliminator control.
Check for dry well condition.
Iron in conditioned water Fouled resin bed. Check backwash, brine draw and brine tank ll, increase
frequency of regeneration. Increase backwash time.
Excessive water in brine tank Plugged drain line ow control. Clean ow control
Salt water in service line Plugged injector system. Clean injector and replace screen.
Timer not cycling. Replace timer.
Foreign material in brine valve. Clean or replace brine valve.
Foreign material in brine line ow control. Clean brine line ow control.
Softener fails to draw brine Drain line ow control is plugged. Clean drain line ow control.
Injector is plugged. Clean or replace injectors.
Injector screen plugged. Replace screen.
Line pressure is too low. Increase line pressure. Line pressure must be at least 20
psi at all times.
Internal control leak. Change seals and spacers and/or piston assembly.
Control cycles continuous Faulty timer mechanism. Replace timer.
Drain ows continuously Foreign material in control. Remove piston assembly and inspect bore, remove
foreign material and check control in various regeneration
positions.
Internal control leak. Replace seals and/or piston assembly.
Control valve jammed in brine or backwash
position.
Replace seals and/or piston assembly.
Timer motor stopped or jammed. Replace timer.
Fleck 4650 AP10 • 9