From the tech sheet:
CHECKING KEYPAD
OPERATION
A rapidly blinking LED over
one of the keys of the keypad
(or sometimes a "dead"
keypad/console) indicates one
or more key switch lines are
stuck or shorted on either the
control or the keypad. To
determine if the control or
keypad is faulty, do the
following test:
1. Unplug dishwasher or disconnect
power.
2. Open the dishwasher door.
3. Open console and disconnect the
keypad ribbon connection from
the control (at P1). Make sure all
other connections are made.
4. Put console back together. Do not
close the dishwasher door.
5. Plug in dishwasher or reconnect
power.
6. Wait 5 seconds.
7. Close dishwasher door.
8. Monitor the control's response:
? If the control is OK (no longer
sees shorts with the keypad
unplugged), it will respond by
turning on a Drain Motor for
2 minutes. Check and/or
replace the keypad if the
control responds OK.
? If the control is not OK (still
sees shorts with the keypad
unplugged), then the drain
motor will NOT respond and
will remain off. If no response,
replace the control.
Testimonial: "Thanks so much for these easy to follow troubleshooting steps. Turned out to be the keypad, which we ordered a replacement for tonight. If this works, you will have saved me at least $300 - thanks so much!"
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