Child lock on burner knobs?

Was the child safety lock accidentally set?

Child safety device

The child safety function can be used to lock the oven
controls.
To activate the child lock, press the
ACTIVATE and press "OK" to confirm. To deactivate the
child lock, follow the same procedure but select
DEACTIVATE. The child lock may be activated whether the
oven is on or off. The child safety device may be deactivated
when the oven has finished cooking and in all situations
described above.

A simple reason could be the control panel is locked (child/safety lock) - look for a small lock symbol in the display.

The child safety lock on the car doors is usually controlled by a switch that is located along the outside edge of the door. Open the door and look along the outside edge of the door for a small switch. This switch sets the child safety lock to on or off. The switch may look similar to the photo I've included. If you still cannot find the child safety lock, please check the owner's manual for your car.

child lock is turned on , controls wont operate if child lock is on (safety)

holding down stop for 30 seconds usually on most models turns off child lock

Setting child lock
The child lock can be set to prevent a programme being accidentally started or a programme in operation being accidentally changed. The child lock function locks all buttons and the programme knob. The child lock can be activated or deactivated by holding down the OPTION and OK buttons simultaneously for 5 seconds.

• Before programme is started: Appliance cannot be used
• After programme is started: Programme in operation cannot be changed

The icon appears in the display to indicate that the child safety device is activated. The child safety device is not deactivated once the programme comes to an end. If you want to set a new programme, you must first deactivate the child safety device.

Dado

Below is Child Lock Icon

im not sure if your model of dryer but here is some instructions
Child lock
When activated, the child lock prevents the dryer from being operated by locking the control panel functions.
The dryer can be turned on but not started. The "Child lock" indicator will flash.
The door can be opened.
To activate the child lock
1. Make sure the dryer is turned off and
the door is closed.
2. Press and hold the "Anti-crease" and "DRYNESS" buttons at the same time, hold until step 5.
3. Turn on the dryer with the "On/Off" button.
4. Press the "OPTIONS" button 3 times. 5. Release the "Anti-crease" and
"DRYNESS" buttons.
The "Child lock" indicator will flash and the dryer is now locked.
6. Turn off the dryer using the "On/Off" button.
To deactivate the child lock Repeat steps 1. to 5.
The "Child lock" indicator will go out. The control panel is now unlocked.
6. Turn off the dryer using the "On/Off" button.

Your rear doors have a child proof safety lock above the lock linkage, there is a turn knob, open the door from the outside and adjust, then the door will open from the inside now.

Toyota Corolla 1988-1997 Repair Guide Door Locks - REMOVAL & INSTALLATION
(see Figure 1)

1. Disconnect the negative battery cable.
2. Remove the door panel and watershield. Remove the service hole cover.
3. Disconnect the door outside opening linkage. Remove the two mounting bolts and remove the door handle if in need of replacement.

Fig. 1: Power door lock control system component locations

1. Disconnect the lock cylinder control linkage.
2. Remove the lock knob and the child protector lock lever knob.
3. Remove the lock assembly retaining screws and remove the door lock. If equipped with power locks, disconnect the electrical harness.
4. To remove the lock cylinder, remove the lock cylinder retaining clip and pull the cylinder from the door.

To install:

1. Coat all the door lock sliding surfaces with multi-purpose grease.
2. Install the outside handle with the two retaining bolts, if removed.
3. Install the door lock solenoid linkage to the door lock.
4. Connect the link to the outside handle.
5. Install the lock knob and the child protector lock lever knob.
6. Install the door opening control link tighten the mounting bolts to 48 inch lbs. (5 Nm).
7. Install the door lock cylinder control linkage.
8. Install the door panel and watershield.
9. Reconnect the negative battery cable.

Hope help with this; remember rated this post and thank you for using Fixya.

You can use either a rolled up newspaper to stop the dog or go to this site for child safety items.

http://www.123safe.com/cgi-bin/SoftCart.exe/scstore/p-1032332AK.html?E+scstore

http://www.shop.com/+-a-child+locks+for+gas+stove+knobs-p127480814-g1-k24-st.shtml

http://www.kidproteq.com/Home-Safety/Kitchen-Safety/Clear-View-Stove-Knob-Covers-p189.html

Press "end of cycle" for 3 seconds. Its the child lock.