North Star NSC25ED Installation, Operation, Maintenance & Repair Parts page 19

ELECTRONIC DEMAND TIMER FEATURES, AND SERVICE, continued
California Efficiency Requirement
Your water softener has a "High Efficiency" feature with an "ON" or "OFF" setting. This softener setting
is shipped in the "OFF" position, which utilizes the maximum rated capacity while most often achieving
maximum salt efficiencies. When installing this unit in the State of California, you MUST turn this setting
to the "ON" position which may initiate more frequent recharges, however it will operate at 4000 grains
per pound of salt or higher.
If you wish to turn the Salt Efficiency feature "ON" (
on page 18.
feature / service: AUTOMATIC ELECTRONIC DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . .
The timer computer has a self--diagnostic function
for the electrical system (except input power and
water meter). The computer monitors the electronic
components and circuits for correct operation. If a
malfunction occurs, an error code appears in the
timer display.
The following chart (below) shows the error codes
that could appear, and possible defects for each
POSSIBLE ' wiring harness, or connection to switch ' position switch ' motor inop-
erative ' valve defect causing high torque
DEFECT
TO REMOVE AN ERROR CODE: (1) unplug power supply (2) correct defect (3) plug power supply back
in (4) Wait for at least 12 minutes. The error code will return if the reason for the error code was not cor-
rected.
service: TIMER / SOFTENER, SERVICE CHECKOUT PROCEDURE . . . . . . . . . . . . . . . . .
If you are not getting soft water, and an error code
is not displayed, use the procedures below to find
the problem. First, make the following visual checks.
VISUAL CHECKS: (1) Is there electrical power to
the outlet the softener's power supply is plugged
NO SOFT WATER
TIMER DISPLAY BLANK
TIMER DISPLAY SHOWS CORRECT
TIME AND DAY, AND IS STEADY
ERROR CODE DISPLAYED
Err 01
TIMER SHOWS WRONG TIME
AND DAY, AND/OR IS FLASHING
Check electrical power to timer
(outlet, power supply, power
cable, all connections).
Do manual
diagnostics
icon will show in display), follow the instructions
code. While an error code is displayed, all timer but-
tons are inoperable except for the SELECT button.
SELECT remains operational so the service person
can make the Manual Initiated
Electronic Diagnostics to further
isolate the defect, and check the
water meter.
Err 03 Err 04
into? (2) Is there salt in the storage tank? (3) Is the
plumbing bypass valve(s) directing water for soft
water service? --see page 6-- (4) Is the valve drain
hose open to the drain, not elevated too high, and
unobstructed? If you do not find a problem with the
visual checks, continue below.
Electrical power was off. Re-
set the correct time of day.
NO POWER
POWER OKAY
Err 05
' timer (PWA)
Investigate reason for power
loss. Be sure outlet for softener
cannot be switched off.
REPAIR AS
NEEDED Do manual diag-
nostics to verify
proper function.
TIMER
DEFECTIVE
19