REPLACEMENT PWA (TIMER BOARD)
Models WHES40, WHES44, WHESHC, WHESFC & WHES48 without touch screen
IMPORTANT: Be sure the valve cam indicates “service” position when replacing the PWA,
to assure both valve and timer are oriented, or timed, to the same cycle. If the valve is not
in service position, see step 8 below.
NOTE: When installing the PWA on the faceplate, use care not to twist the circuit board, or force
it onto the mounting pegs. Twisting could damage the printed circuits, or break the display glass.
* Replacement PWA for units with touch screen (WHES488) is 7305443.
SET THE MODEL CODE:
NOTE: If “- - - -“ (or a model code) is not flashing in the display, press the
PROGRAM button and hold it down for several seconds, until the
display changes twice to a flashing “- - - -” (or model code).
4. Press the r UP or s DOWN buttons to change the model code.
5. With the correct model code flashing, press the PROGRAM button to
return to the “CURRENT TIME” display.
SET THE CLOCK:
NOTE: If the words “CURRENT TIME” do not show in the display, press the
PROGRAM button a few times, as needed, until they do.
6. Press the r UP or s DOWN buttons to set the present time. Up moves
the display ahead; down set the time back. Be sure AM or PM is correct.
7. Program the water softener following the instructions in your owner’s
manual.
8. If the valve is not in the service position, press the RECHARGE button
and hold for 3 seconds to start a recharge. When the gear stops turning,
press the RECHARGE button until the flashing word “RECHARGE” is no
longer shown in the display (this may have to be done several times)
9. The valve and PWA should now be in their correct positions.
7335189 (Rev. F 10/27/15)
TANK LIGHT - When installing the replacement PWA, you must remove the old tank light
assem bly from the hole in the softener’s rim. On older models there will be mounting
parts that must be unscrewed and discarded. Snap the new tank light assembly (it comes
attached to the new PWA) into the rim with the light bulb pointed down into the tank.
Position markers
(valve in service)
CAM
MOTOR
PRESS TO SCHEDULE
HOLD TO START
PROGRAM
RECHARGE
SET
SALT
LEVEL
TANK
LIGHT
OPERATING (Steady)
LOW SALT (Flashing)
UP button
Display
TANK LIGHT
button
SET SALT LEVEL
button
PROGRAM button
DOWN button
RECHARGE button
STATUS
LIGHT
1. After installing the PWA, plug the
power supply into the electrical out-
let. A number shows in the display
for a few seconds, followed by a
flashing “- - - -”.
DETERMINE THE CORRECT MODEL
CODE:
2. Open the salt lid of your softener and
find the model number on the rating
decal on the rim. Look to the right of
the model number and find a 5-digit
date code (example: 06182).
3. Using the table below, determine the
correct model code.
Model Number
(see rating decal inside unit for model no. and date code)
Model
Code
to select
WHES40 built before July 1, 2006 (date code 04001 thru 06181) LE40
WHES40 built July 1, 2006, and after (date code 06182 and higher) LL40
WHES44 LL44
WHESHC LL38
WHESFC LLFC
WHES48 without touch screen (rating decal shows WHES486)* LL48
STATUS LIGHT
(Feature Upgrade on
Models WHES40, WHES44 & WHES48)
When the water softener is connected to electrical
power, the status light on the control panel will oper-
ate as follows:
= Light flashing slowly, along with the salt level
indicators in the display - The salt monitor sys-
tem indicates a low salt level and needs to be set.
See “Set Salt Level” in your owner’s manual.
= Light flashing slowly, along with the words
“SCHEDULED CLEAN” in the display - Four
months have elapsed on the system’s timer since
start up or the last reset. This is a reminder to use
Whirlpool™ WHE-WSC Water Softener Cleanser
three times a year. To reset the timer, press any
button on the control panel and the flashing words
will disappear. The status light will stop flashing,
unless the system is also low on salt (see above).
= Light flashing rapidly, with “CURRENT TIME”
shown in the display and the clock flashing
slowly - The present time needs to be set, either
during initial start up or after a long power outage.
See “Set Time of Day” in your owner’s manual.
= Light flashing rapidly, with “Err” shown in the
display - The electronic self-diagnostics have
detected a problem. See “Troubleshooting” in your
owner’s manual.
= Light on steady (not flashing) - The system has
power applied and does not require any attention.
