SERVICE TECH. INFORMATION
SECTION 5
21
5A.
TROUBLESHOOTING
AUTOMATIC ELECTRONIC DIAGNOSTICS
The face plate computer has a self-diagnostic
function for the electrical system (except input
power and water meter). The
computer monitors the electron-
ic components and circuits for
correct operation. If a malfunction occurs, an
error code appears in the face plate display.
The chart below shows the error codes that could
appear, and the possible defects for each code.
While an error code appears in the display, all
face plate buttons are inoperable except the
SELECT button. The SELECT button remains
operational so the service person can make the
MANUAL INITIATE ELECTRONIC DIAG-
NOSTICS to further isolate the defect, and check
the water meter.
CODE
POSSIBLE DEFECT
MOST LIKELY
LESS LIKELY
Err 01 Err 02
Err 03 Err 04
motor inoperative / wiring harness or connection to switch / position switch / valve defect
causing high torque
Err 05
face plate
PROCEDURE FOR REMOVING ERROR CODE FROM FACE PLATE: 1. Unplug transformer 2. Correct defect
3. Plug-in transformer 4. Wait for 6 minutes. The error code will return if the defect was not corrected.
MANUAL INITIATED ELECTRONICS DIAG-
NOSTICS
1
.
To enter diagnostics, press and hold the
SELECT button until
000 - -
shows in the
display.
A
.
The first 3 digits indicate water meter opera-
tion as follows:
000 (steady) = Soft water not in use, and no
flow through the meter.
—> OPEN A NEARBY SOFT WATER FAUCET
000 to 199 (continual) = Repeats display for
each gallon of water passing through the me-
ter. (1 Gallon = 3.78 liters)
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 front of the sensor. You should
get a reading in the display. If you get a read-
ing, unhook the in and out plumbing and
check the turbine for binding.
B
.
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)
button to manually advance the valve into
each cycle and check correct switch opera-
tion.
