Pentair Fleck 4600-MECH - Softener fails to draw brine; Controller cycles continuously

Installer Manual Fleck 4600 - MECH - Troubleshooting
Ref. MKT-IM-027 / B - 01.06.2018 69 / 88
Softener fails to
draw brine
Plugged drain line flow control. Clean drain line flow control.
Plugged injector and/or filter. Clean or replace injector and/or filter.
Low water pressure.
Raise inlet pressure to 1.8 bar
minimum.
Internal valve leak.
Change seals & spacers and/or piston
assembly.
Bad programming. Program correctly.
Power head not operating properly. Change power head.
Controller cycles
continuously
Power head not operating properly. Change power head.
Faulty microswitch or wiring loom. Change microswitch or wiring loom.
Defective or badly set cycle cam. Reposition or change cycle cam.
Drain flows
continuously
Foreign elements in the valve.
Clean valve and check it in the different
regeneration positions.
Internal valve leak.
Change seals & spacers and/or piston
assembly.
Valve blocked in brine refill or
backwash.
Defective or blocked motor. Change motor and check gear teeth.
Power head not operating properly. Change power head.
Problem Cause Solution