Kenmore ULTRASOFT 280 - Manual (Page 23)

SECTION 5 SERVICE TECH. INFORMATION
A. TROUBLESHOOTING
AUTOMATIC ELECTRONIC DIAGNOSTICS
The faceplate timer (PWA) com­
puter has a self-diagnostic func­
tion for the electrical system, ex­
cept for input power and water
meter. The computer monitors electronic compo­
nents and circuits for correct operation. If a malfunc­
tion occurs, an error code appears in the faceplate
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 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.
CODE
POSSIBLE DEFECT
MOST LIKELY LESS LIKELY
Erri, ЕггЗ,
Err4 motor inoperative / wiring harness or connection to switch / position switch / valve defect causing
high torque_________________________________________________________________________
Errs 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
and hold for three seconds.
You will see the following display, showing valve
cycle position, position switch status (open or
closed), and turbine operation.
valve position indicator
turbine count {water
flowing)
sOFF
1 II II 1
LI ULL
Л
SOFF
4
\ no
\
______X
3 gggg; _ ;
WATFR FLOW ___ WATER FLOW___
position switch
indicator (open)
turbine count (no
water flowing)
TURBINE OPERATION: If no water is flowing
through the softener, the turbine indicator displays
three zeros. When water is flowing, the flow bar
scrolls across the display, and a 000 to 199 count re­
peats 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 and flow bar.
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.
POSITION
SWITCH
SENSOR
HOUSING
TURBINE
TURBINE
SUPPORT AND
SHAFT
VALVE
OUTLET
POSITION SWITCH STATUS: With the valve in ser­
vice, or any of the recharge cycles, the switch indica­
tor will show open -*K-. 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