Installer manual Fleck 5600 SXT - Troubleshooting
Ref. MKT-IM-013 / E - 23.09.2020
89 / 104
Problem
Cause
Solution
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.
Upper drive
synchronization
Power failure while the electronic
was compiling data.
System will recover automatically
within a few minutes.
The board doesn’t receive the
signal from the homing
microswicth (motor runs for the 6
first minutes of UD display then
shows ER0).
Check microswicthes and
associated wiring.
Er 0 was shown, power switch off
and on: UD---- is displayed at
power restoration and motor runs
for 6 minutes looking for its
position, finally shows Er0 again if
expected signals from
microswicthes aren’t received.
