Installer Manual Fleck 3900 - NXT - Troubleshooting
96 / 126 Ref. MKT-IM-015 / B - 08.06.2018
Excessive salt
consumption
Improper salt setting. Check salt usage and salt setting.
Excessive water in brine tank.
See problem "Excessive water in
brine tank" below.
Controller cycles
continuously
Maladjusted, broken or shorted
micro-switch.
Determine if micro-switch or
controller is faulty and replace it,
or replace complete power head.
Loss of water pressure
Iron buildup in line to water
softener.
Clean line to water softener.
Iron buildup in water softener.
Clean controller and add mineral
cleaner to mineral bed. Increase
frequency of regeneration.
Inlet of softener plugged due to
foreign material broken loose
from pipes by recent work done on
plumbing system.
Remove piston and clean the
controller.
Loss of mineral through
drain line
Air in water system.
Assure that well system has
proper air eliminator control.
Check for dry well condition.
Improperly sized drain line flow
control.
Check for proper drain rate.
Iron in conditioned water Fouled mineral bed.
Check backwash, brine draw and
brine tank refill. Increase
frequency of regeneration.
Increase backwash time.
Excessive water in brine
tank
Plugged drain line flow control. Clean flow control.
Plugged injector system. Clean injector and screen.
Controller is not cycling. Replace controller.
Foreign material in brine valve.
Replace brine valve seat and clean
valve.
Foreign material in brine line flow
control.
Clean brine line flow control.
Softener fails to draw
brine
Drain line flow is plugged. Clean drain line flow control.
Injector is plugged. Clean injector.
Injector screen is plugged. Clean screen.
Line pressure is too low. Increase line pressure to 1.4 bar.
Internal valve leaks.
Change seals, spacers and piston
assembly.
Cam did not cycle.
Check drive motor and micro-
switches.
Problem Cause Solution
To Next Page
Loading...
