Timer locked. how do I unlocked it My son set the timer for 20.00 but meant to set it for 2.00 H .

Many microwaves have children locks. Of course they are for safety reasons. they are for tricking the little kids from playing with the big people toys.

Process A

To Turn the Control Lockout Feature On or Off:

1. Make sure the microwave oven and timer are off.
2. Press and hold the CANCEL keypad for 3 seconds.
3. 2 tones will sound and "LOC" or a padlock icon will be displayed (indicating the control is LOCKED).
4. Repeat to unlock. Again, 2 tones will sound.

Process B

To Turn the Control Lockout Feature On or Off:

1. Make sure the microwave oven and timer are off.
2. Press and hold the START keypad for 5 seconds.
3. 2 tones will sound and "L" will be displayed (indicating the control is LOCKED)
4. Repeat to unlock. Again, 2 tones will sound.

Hope this helps?

" 1. CHILD LOCK
The Child Lock prevents unwanted oven operation
such as by small children. The oven can be set so
that the control panel is deactivated or locked. To
set, touch Custom Help, the number 1 and Start/
Touch On. Should a pad be touched, LOCK .
.. ON will appear in the display.
To cancel, touch Custom Help and Stop/Clear. "

Also, to find manuals........

Setting the Child Protection Lock

You can lock your microwave oven so it can't be used by unsupervised

children.

1 Press the My Choice Button and the 5 button at the same time for

3 seconds.

The display shows : CHILD LOCK ON.

2 The display returns to the time of day.

At this point, the microwave oven cannot be used until it is unlocked. To
unlock it, repeat steps 1-2 above.

Try unplugging it for a few minutes. If that fails, read the owners manual for instructions on how to unlock.

Here you go.

The Child Lock shuts down the control panel pads to prevent
unintended use of the microwave oven.
When the control is locked, only the Vent Fan and Light pads will
function.
To Lock/Unlock Control: The microwave oven and Timer must
be off. Touch and hold START for 5 seconds until 2 tones sound
and a lock icon appears on the display. Repeat to unlock and
remove the lock icon from display.

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If that doesn't work, leave it unplugged for about 5 minutes.

Unplugged the microwave, and plugged it in again, and the microwave reset itself.

Pressing "timer/clock" button 4 times turns on and off demo mode.

According to the owner's manual for model KHMS155L:

To Lock/Unlock Control: The microwave oven and Timer must
be off. Touch and hold START for 5 seconds until 2 tones sound and a lock icon appears on the display. Repeat to unlock and remove the lock icon from display.

You can download the manual here:
http://www.kitchenaid.com/custserv/service.jsp

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