Watts Fleck 3900 Brass Valve - Manual (Page 21)

Printed in U.S.A.
Page 21
MODEL 3900
Service Instructions
PROBLEM CAUSE CORRECTION
1. Softener fails to regenerate. A. Electrical service to unit has been
interrupted.
B. Timer is defective.
C. Power Failure.
A. Assure permanent electrical
service (check fuse, plug, pull
chain or switch).
B. Replace timer.
C. Reset Time of Day.
2. Hard water. A. By-pass valve is open.
B. No salt in brine tank.
C. Insufficient water flowing into
brine tank.
D. Hot water tank hardness.
E. Leak at distributor tube.
F. Internal valve leak.
A. Close by-pass valve.
B. Add Salt to brine tank and
maintain salt level above water
level.
C. Check brine tank fill time and
clean brine line flow control if
plugged.
D. Repeated flushing of the hot water
tank is required.
E. Make sure distributor tube is not
cracked. Check O-ring and tube
pilot.
F. Replace seals and spacers and/or
piston.
3. Unit used too much salt. A. Improper salt setting.
B. Excessive water in brine tank.
A. Check salt usage and salt setting.
B. See Problem No. 7.
4. Loss of water pressure. A. Iron buildup in line to water
conditioner.
B. Iron buildup in water conditioner.
C. Inlet of control plugged due to
foreign material broken loose from
pipe by recent work done on
plumbing system.
A. Clean line to water conditioner.
B. Clean control and add mineral
cleaner to mineral bed. Increase
frequency of regeneration.
C. Remove pistons and clean
control.
5. Loss of mineral through drain line. A. Air in water system.
B. Improperly Sized Drain Line Flow
Control.
A. Assure that well system has
proper air eliminator control.
Check for dry well condition.
B. Check For proper Drain Rate.
6. Iron in conditioned water. A. Fouled mineral bed. A. Check backwash, brine draw and
brine tank fill. Increase frequency
of regeneration. Increase
Backwash Time.
7. Excessive water in brine tank A. Plugged drain line flow control.
B. Plugged injector system.
C. Timer not cycling.
A. Check flow control.
B. Clean injector and screen.
C. Replace timer.