A.O. Smith AO-WH-SOFT-350C Owner's Manual page 18

TROUBLESHOOTING
18
PROBLEM
Appliance Stays
in Regeneration
Excess Water
in Brine Tank
Salty Water
Controller Error
Messages
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POSSIBLE CAUSE
Controller not attached properly.
Defective magnet disk.
Foreign object in main control valve.
Broken valve assembly. Motor running. Repair the valve assembly.
Restricted, frozen, or pinched drain
line.
Plugged brine line, brine line flow
control, or air check/draw tube.
Plugged injector assembly.
Plugged injector.
Low water pressure.
Drain line or flow control is restricted.
Brine line restricted or crimped.
Excessive amount of water
in brine cabinet.
Intermittent pressure drop from
feed source.
Brine valve drips water back
to brine tank.
Home not found.
Motor error.
Home offset.
Home latched.
Memory error.
SOLUTION
Make sure the controller is pushed
all the way onto the cover plate.
Replace magnet disk.
Remove foreign object(s) from
the main control valve.
Remove restriction, thaw, or
straighten drain line.
Clean flow control, air check/draw
tube, and brine line. Clean any
sediment from the brine cabinet.
Clean or replace injector. Replace
entire assembly if throat removed.
Replace injector screen, nozzle,
and throat.
Maintain minimum pressure of
30 psi (2.1 bar).
Remove restriction.
Remove restriction, replace if crimped.
Verify correct water level relative to
salt setting. Estimated amount of
water should be 2-12". Check brine
line and fittings for loose connections.
Install check valve on the inlet water
line to the appliance (check local
plumbing codes first).
Clean brine valve housing, replace
piston assembly.
Cycle power by unplugging the
transformer and plugging it back in.
It will look for Home again. Ensure the
controller is pushed all the way onto
the drive end cap.
All wires should be unplugged and
replugged, sequence is motor, sensor,
and power cord. Plug motor in and
cycle power. If it is already plugged in,
then motor wiring or the motor plug is
defective. This could also be a problem
with the computer.
Disk did not start in proper home
location. Cycle power controller will
automatically try to reset itself by
finding Home and continuing the
regeneration. Ensure the controller
is pushed all the way onto the drive
end cap.
Gear teeth are not engaged, gear is
stripped, or something is jammed in
the valve. Cycle the power to reset.
Replace controller.