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[i!i !! :i :_!! :i :_!! :i:_!! :j SECTION 5 SERVICE TECH. INFORMATION
A. TROUBLESHOOTING
AUTOMATIC ELECTRONIC DIAGNOSTICS
The faceplate timer (PWA)
computer has a self-diag-
nostic function for the
electrical system, except
for input power and water
meter. The computer
monitors electronic components and circuits for cor-
rect operation. If a malfunction occurs, an error code
appears in the faceplate display.
Error #1
Service Required
See Owners Manual
Diagnostics
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 but-
ton. SELECT remains operational so the service per-
son can make the MANUAL INITIATED ELEC-
TRONIC DIAGNOSTICS (below) to further isolate
the defect, and check the water meter.
POSSIBLE DEFECT
MOST LIKELY _-- _, LESS LIKELY
CODE -_
Error #1, Error motor inoperative / wiring harness or connection to switch / position switch / valve defect causing
#3, Error #4 hiqh torque
Error #5 faceplate timer (PWA)
PROCEDURE FOR REMOVING ERROR CODE FROM FACEPLATE: 1. Unplug transformer from outlet 2. Correct
defect 3. Plug in transformer 4. Wait for 8 minutes. The error code will return if the defect was not corrected.
MANUAL INITIATED ELECTRONICS
DIAGNOSTICS
_To enter diagnostics, press the SELECT button
once to go to the Main Menu. Move the blackbar
to Service Mode and press Select. Move black bar
to Diagnostics and press Select.
You will see the following display, showing valve
cycle position, position switch status (open or
closed), and turbine operation.
valve position indicator
f
{ 10:39:56_M
Pos : SERVICE 0 : 00
Req Pos : SERVICE
Motor : Off _-_c_
"Kbn: 0_0 Gals: 0 _1_
Days: _ chgs: 0 _Last Rch_ : R
/ \
turbine count (no
water Ilowino_
10:39:56AM
Pos : SERVICE 0 : 00
Req Pos : SERVICE
Motor : Off _-'_
Trbn : 126 Gals : 0
Days : 1 _Rchgs : 0
Last Rchg :\4
\
position switch turbine count (water
indicator (open) flowin¢l)
TURBINE OPERATION: If no water is flowing
through the softener, the turbine indicator displays
3 zeros. When water is flowing, a 000 to 140 count
repeats for each gallon of water passing through the
turbine. To check for positive operation of the tur-
bine if zeros are shown, open a nearby soft water
faucet and observe the turbine count.
If you don't get a reading in the display, with 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 reading, unhook the in and out plumbing
and check the turbine for binding.
switch
sensor
housing
/
turbine
support
& shaft
outlet
POSITION SWITCH STATUS: With the valve in ser-
vice, or any of the recharge cycles, the switch indica-
tor will show open _N-. While the valve is rotating
from one position to another, the indicator will
show the switch closed --,_-. A defect is probable if
indications vary from this pattern.
5-2
Problems, Questions? Call 1- 800- 426- 9345 Kenmore Water Line