Troubleshooting - ProFlow PF-SOF1-SIM Technical Manual

PROBLEM CAUSE
Hard (untreated) water Open or defective bypass
to service
Simplex only: appliance in regeneration
Duplex only: one of the Simplex systems in
regeneration and Service Valve not closing off
properly
No salt in brine tank
Salt bridging in brine tank
Change in raw water hardness
Appliance fails to start a regeneration
PF-SOF1 only: valve body and timer out of
synchronisation
Control valve fails to draw brine
Decreasing exchange capacity of resin
Loss of resin
Leak at riser tube
Residual hardness in Bypass not completely closed
treated water
PF-SOF1 only: mixing valve open
Appliance fails to start Faulty electrical supply
a regeneration
Defective flow meter
Defective PCB
Defective drive motor
Appliance uses too Excessive water in brine tank
much salt
Appliance regenerates too frequently
Excessive water in Control valve fails to draw brine
brine tank
Improper refill time setting
Missing refill flow control
Leak from control valve to brine tank
Salt taste in treated Excessive water in brine tank
water
Injector undersized
Improper brine/slow rinse time setting
Loss of water pressure Mineral or iron build-up in resin tank
Plugged lower and/or upper distributor
Drain line from control Appliance in regeneration
valve flows
continuously
Faulty electrical supply
Defective drive motor
PF-SOF1 only: defective micro switch
PF-SOF1,5 only: defective optical switch
Defective PCB
PF-SOF1 only: valve body and timer out of
synchronisation
Drain line from brine Excessive water in brine tank
tank overflow flows
continuously

TROUBLESHOOTING

Page 18
SOLUTION
Close or replace bypass
Wait until regeneration finishes or manually
advance regeneration to end
Refer to problem "Service Valve not closing off
properly"
Add salt and initiate regeneration manually
Break salt bridge(s) and initiate regeneration
manually
Measure hardness of incoming untreated water and
adjust programming accordingly
Refer to problem "Appliance fails to start a
regeneration"
Synchronize valve body and timer
Refer to problem "Valve fails to draw brine"
Clean or replace resin bed
Refer to problem "Loss of resin"
Verify that riser tube is seated correctly and is not
cracked
Close bypass
Verify setting of mixing valve
Verify electrical service (fuse, transformer,...)
Clean and/or replace flow meter
Replace PCB
Replace drive motor
Refer to problem "Excessive water in brine tank"
Verify program
Refer to problem "Control valve fails to draw brine"
Verify that refill time corresponds to the proper salt
level and amount of resin
Verify that refill flow control is installed and
properly sized
PF-SOF1 only: check synchronisation between valve
body and timer
PF-SOF1,5 only: check brine line shut-off valve of
valve body
Refer to problem "Excessive water in brine tank"
Verify injector selection and operating pressure
Verify that brine/slow rinse time corresponds to the
proper salt level and amount of resin
Clean resin bed and control valve; increase
regeneration frequency
Verify that distributors are free of debris
Wait until regeneration finishes or manually
advance regeneration to end
Verify electrical service (fuse, transformer,...)
Replace drive motor
Replace micro switches
Replace optical switch
Replace PCB
Synchronise valve body and timer
Refer to problem "Excessive water in brine tank"