Does this dishwasher have a lock button?

Hi Roger, Hope this helps......CHEERS..

KENMORE DISHWASHER ERROR CODES

Kenmore Dishwasher Error Code = Start Resume light blinking slow
When the dishwasher door opens or electrical power is removed during the cycle then the dishwasher will not start again. The door is detected as being closed and the Start Resume button is being pressed
Kenmore Dishwasher Error Code = Clean light is blinking 7 times
Heater circuit fail. Control panel did not detect the water getting hot. Did not detect heating element was energized to heat the water during the wash cycle
Kenmore Dishwasher Error Code = Sanitize LED blinking at end of cycle
Control panel could not detect if sanitation has been achieved
Kenmore Dishwasher Error Code = Console light blinking rapidly
There is a stuck button on the control panel
Kenmore Dishwasher Error Code = Clean light is constantly illuminated
Dishwasher cannot start a wash cycle until it sees that the door has been opened after the previous washing cycle
Kenmore Dishwasher Error Code = Control lock LED is ON but not responding to pressing of the keys
Turned on by accident or there is a control detected key pad problem

Actually, if you look closely at that Low Rinse button or emblem, you will see a little lock symbol ABOVE the words "Low Rinse", and I'll bet THAT light is the one that is on. Basically, you have the control lock (or child-lock) turned on. To turn it off, you have to press and hold the SANITIZE button for 3 to 5 seconds until that light goes off. Now your dishwasher will work!

If you need further help, reach me via phone at https://www.6ya.com/expert/ronald_e6b9572cebe3ad27

This will only control the diagnostic service mode, it will not run a regular wash cycle.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/jeffrey_634abadf963e31e5

Some type of dirt or dust got in your panel, now the contacts don't touch. Not a diy job.

You have a bad control board , the part is called the user interface

Hold the control lock in for more than four seconds. See if that works.
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that would be model # 66516012403 correct??
you may have inadvertently set the lock on function..
check this out from your manual...

Lock On
Use the Lock On to prevent unintended use of the dishwasher
between cycles. You can also use the lock feature to prevent
unintended cycle or option changes during a cycle.
When LOCK ON is lit, all buttons are disabled.
NOTE: The dishwasher door can be opened while the controls
are locked. However, the lock must be turned off and the Start/
Resume button pressed to resume the cycle.
To turn on the Lock
Press and hold HEATED DRY for 4 seconds. LOCK ON glows.
If you press any pad while your dishwasher is locked, the light
flashes 3 times.
NOTE: If the Heated Dry option is selected, the light will
temporarily turn off until Lock On glows.
To turn off the Lock
Press and hold HEATED DRY for 4 seconds. The light turns off.

hope this helps,
best of luck,
ttfn

Push and hold that button till it goes off,supposed to be 3 seconds but seems to take 5 or more,someone locked the controls..

It's probably the touchpad - commonly used buttons quit working after a while. If not, then it's the electronic control board.

Hold the control lock in for more than four seconds. See if that works.