Troubleshooting - A.O. Smith AO-WH-PRO-300 Owner's Manual

TROUBLESHOOTING

16
Problem Possible Cause
No salt in brine cabinet.
Sediment in brine cabinet has plugged
the brine line and air check/draw tube.
Flow control is plugged.
No Soft
Drain line is pinched, frozen, or
Water After
restricted.
Regeneration
Clogged injector assembly.
Salt bridge has formed due to high
humidity or the wrong kind of salt.
The Bypass Valve is in the Bypass
Position.
Appliance is plumbed backwards.
No Soft Water
Extended power outage.
Water hardness has increased.
Not metering water.
The Bypass Valve is in the Bypass
position.
Appliance is plumbed backwards.
No Flow Is
Indicated When
Sensor not receiving signal from
Water Is Flowing
magnet on turbine.
Turbine is jammed.
Flow Indicated
The household plumbing system has
When Water Is
a leak.
Not Being Used
Electric cord is unplugged.
No electric power at outlet.
No Read-Out In
Display
Defective transformer.
Defective circuit board.
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Solution
Add salt.
Remove the brine line and flush clean.
Remove the air check/draw tube and
flush with clean water. Clean injector
assembly. Clean any sediment from
brine cabinet.
Remove brine piston housing and clear
debris from the flow control.
Straighten, thaw, or unclog the drain
line.
Remove injector cap and clean nozzle
and throat with a wooden toothpick.
Replace entire assembly if throat
removed.
Test with a blunt object like a broom
handle. Push the handle into the salt
to dislodge the salt bridge, or use hot
water around the inside perimeter to
loosen salt.
Place the Bypass Valve in the Service
position.
Check that appliance is plumbed
correctly.
Reset the time of day and regenerate
the unit.
Re-test the water and re-enter a new
setting number.
Flow should be indicated with water
usage. If no flow, see below.
Place the Bypass Valve in the Service
position.
Check that appliance is plumbed
correctly.
Remove sensor from bypass housing.
Test with magnet on either flat side
of sensor. If flow is indicated, check
turbine. If no flow, replace sensor.
Remove Bypass Valve and clear debris
from turbine.
Repair the leak.
Plug in the transformer.
Check power source. Make sure outlet
is not controlled by a switch.
Test with voltmeter for 12 VAC at
control. If less than 10 VAC replace the
transformer.
With 12 VAC present at controller,
replace the controller.
INSTALLATION GUIDE
2
Problem Possible Cause
Controller not attached properly.
Defective magnet disk.
Appliance Stays
In Regeneration
Foreign object in main control valve.
Broken valve assembly. Motor running. Repair the valve assembly.
Restricted, frozen, or pinched drain
line.
Excess Water In Plugged brine line, brine line flow
control, or air check/draw tube.
Brine Tank
Plugged injector assembly.
Plugged injector.
Low water pressure.
Drain line or flow control is restricted.
Brine line restricted or crimped.
Salty Water
Excessive amount of water in brine
cabinet.
Intermittent pressure drop from feed
source.
Brine valve drips water back to brine
tank.
"E1" Home not found.
"E2" Motor error.
Controller Error
Messages
"E3" Home offset.
"E4" Home latched.
"E5" 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 cover plate.
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 cover
plate.
Gear teeth are not engaged, gear is
stripped, or something is jammed in
the valve. Cycle the power to reset.
Replace controller.
NEED HELP? GIVE US A CALL 855.424.9892
17