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PROBLEM
CAUSE
Hard (untreated) water
Open or defective bypass
to service
Appliance in regeneration
No salt in brine cabinet
Salt bridging
Change in raw water hardness
Appliance fails to regenerate
Improper brine draw
Decreasing exchange capacity of resin
Loss of resin
Leak at riser tube
Residual hardness in
Bypass not completely closed
treated water
Appliance is overrunning its softening capacity
Appliance fails to
Faulty electrical supply
regenerate
Defective flow meter
Defective PCB
Defective drain solenoid
Control valve does not switch to regeneration
position
Appliance uses too
Excessive water in brine cabinet
much salt
System regenerates too frequently
Excessive water in
Improper brine draw
brine cabinet
Improper setting of refill cycle
Missing refill flow control
Leak from control valve to brine cabinet
Salt taste in treated
Improper setting of brine draw/slow rinse cycle
water
Excessive water in brine tank
Improper brine draw
Loss of water pressure
Mineral or iron build-up in resin tank
Plugged lower and/or upper distributor
Crushed lower and/or upper distributor
Drain line from control
Appliance in regeneration
valve flows
continuously
Drain solenoid stuck in open position
Defective PCB
Drain line from brine
Excessive water in brine cabinet
cabinet overflow flows
Leak between control valve and pressure tank
continuously
Control valve fails to
Improper setting of refill cycle
refill brine tank
Plugged refill flow control
Refill solenoid not opening
Loss of resin
Lower and/or upper distributor damaged
Leak between riser tube and upper distributor
TROUBLESHOOTING
Page 14
SOLUTION
Close or replace bypass
Wait until regeneration finishes or manually
advance regeneration to end
Add salt and initiate regeneration manually
Break salt bridge(s) and initiate regeneration
manually
Measure the hardness of the incoming untreated
water and adjust programming accordingly
Refer to problem "Appliance fails to regenerate"
Refer to problem "Improper brine draw"
Clean or replace resin bed
Refer to problem "Loss of resin"
Verify that riser tube is seated correctly and is not
cracked
Close bypass
Measure the hardness of the incoming untreated
water and adjust programming accordingly
Verify operation of flow meter
Verify electrical service (fuse, transformer,...)
Verify operation of flow meter
Replace PCB
Replace drain solenoid
Check operating pressure; must be higher than 1,4
bar
Refer to problem "Excessive water in brine cabinet"
Measure the hardness of the incoming untreated
water and adjust programming accordingly
Refer to problem "Improper brine draw"
Verify setting of refill cycle
Verify that refill flow control is installed and
properly sized
Clean or replace plunger and solenoid diaphragm of
refill solenoid
Check seal between brine draw check ball and brine
draw restrictor
Verify setting of brine draw/slow rinse cycle
Refer to problem "Excessive water in brine tank"
Refer to problem "Improper brine draw"
Clean resin bed and control valve; increase
regeneration frequency
Verify that distributors are free of debris
Replace distributor(s)
Wait until regeneration finishes or manually
advance regeneration to end
Clean drain solenoid
Replace PCB
Refer to problem "Excessive water in brine cabinet"
Verify seal between control valve and pressure tank
Verify setting of refill cycle
Clean refill flow control
Verify operation of refill solenoid
Replace distributor(s)
Verify that riser tube is seated correctly and is not
cracked
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