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SECTION 5 SERVICE TECH. INFORMATION
5A. TROUBLESHOOTING
AUTOMATIC ELECTRONIC DIAGNOSTICS
The face plate computer has a self-diagnostic
function f_)r the electrical system (except input
power and water n__ete O. The
__-__ n_
computer monitors the electronic _=_ j Wz-!
components and circuits f_)r cor-
rect operation. If a malfunction occurs, an error
code appears in the face plate display.
The chm_ below shows the error codes that couM
appear, and the possible defects for each code.
While an error code appears in the display, all face
plate buttons arc inoperable except the SELECT
button. The SELECT button remains operational
so the service person can make the MANUAL
INITIATE ELECTRONIC DIAGNOSTICS to further
isolate the defect, and check the water meter.
CODE
Err 01
Err 02
Err 03
Err 04
Err 05
POSSIBLE DEFECT
MOST LIKELY -._" D, LESS LIKELY
motor inoperative / wiring harness or connection to switch / position switch / face plate
face plate
motor inoperative / face plate
face plate / position switch
face plate
PROCEDURE FOR REMOVING ERROR CODE FROM FACE PLATE: 1. ( nplug transformer 2. Correct defect 3. Plug-in
transformer 4. _,ait for 6 minutes. The error code will return if the defect was not corrected.
MANUAL INITIATED ELECTRONICS DIAG-
NOSTICS
°
To enter diagnostics, press and hold the SE-
LECT button until 000 - - shows in the display.
UUU _ p
-T--T,-or
WATER METER (A) SWITCH (B)
A°
The first 3 digits indicate water meter opera-
tion as follows:
000 (sleady) Soft water not in use, and no
flow through the meter.
--OPEN A NEARBY SOFT WATER FAUCET--
000 to 199 (contil_ual) = R_:peats display for
each gallon of water passing through the me-
ter.
If you don't get a reading in the display, with the
faucet open, pull the sensor from the valve outlet
port. Pass a small magnet back and forth in fi'ont of
the sensor. You should get a reading in the display.
If you get a reading, unhook the h_ and oul
plumbing and check the turbine for binding.
B°
POSITION
SWITCH
VALVE
OL
SENSOR
RBINE
RBINE
SUPPORT AND
SHAFT
The letter (P) and dash (or dashes) indicate
POSITION switch operation. If the letter ap-
pears, the switch is closed. If the dash shows,
the switch is open.
Use the ON/OFF-HOLD (Recharge Now) but-
ton to manually advance the valve into each
cycle and check correct switch operation.
20
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