How to turn off a lock symbol

press the scrlk button in the top line of f keys

It would help if you gave the brand and model number of your dishwasher, but the answer is basically the same. Look carefully at your dishwasher control panel. You probably have a little lock symbol that is lit up (or a light inside the symbol is lit). And usually this lock symbol is located near (usually above) a button that is usually used for another purpose. Most often this is the Heated-Dry key or button. Press and hold this key for 3 to 5 seconds until the lock symbol light goes out. And it's just that easy! But if you press the key, and nothing happens, then you may have a bad control console that will have to be replaced.

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I'D HAVE THE COMPUTER CHECKED OUT BY A QUALIFIED AUTOMOTIVE TECHNICIAN

Unplug the router.
Plug your computer network cable (if you can and have it) directly into the modem, bypassing the router.
If directly connected modem gives no Internet connection - call your ISP tech support.
If the Internet connection is provided by the modem directly - shut down the router for at least one minute, while shut off, plug the cables from modem back into it, restart router, give it some time to launch services (appr.2-4 min), then check Internet connection on the devices.
If still no joy - 1. Connect your computer to the router (LAN port) using an Ethernet cable. Make sure your IP address on the computer is 192.168.0.### (where ### is between 2 and 254). Please see the Networking Basics section for more information. If you need to change the settings, write down your existing settings before making any changes. In most cases, your computer should be set to receive an IP address automatically in which case you will not have to do anything to your computer. 2. Open a web browser and enter http://192.168.0.1 and press Enter. When the login window appears, login using your router authentication credentials (see it on the back, if you never changed it).
Check internet, LAN and wireless settings (on/off? Firmware updates?).
Check: http://www.dlink.com/-/media/Consumer_Products/GO/GO%20RT%20N150/Manual/DEU_Manual_RevB.pdf

Your problem is either one of the 2 cases below.

1. Door Locked Indicator...'Keyhole' symbol
The 'Keyhole' symbol will illuminate 2 seconds after you have
pressed the 'START/CANCEL' button and will remain lit
throughout the wash programme.
The 'Keyhole' symbol will be flashing at the end of the
programme to indicate that the door is still locked. When the
symbol goes off you will hear a bleep and the door can then
be opened.

2. If the machine has been child locked, deactivate this feature by pressing and holding in the 'child lock' button for 2 seconds.You will hear a beep and the child lock symbol will go out,allowing you to use the machine normally.

First, make sure the driver for the adapter is up to date. Next, check to see if it is turned on. For laptops, the easiest way is to make sure the on/off switch (if applicable) is in the on position (denoted by a ' symbol). Also, most laptops come with a function (Fn) key combo to allow you to turn the adapter on and off. The other key to press will be denoted by a symbol that looks like a radio tower or a WiFi symbol. If the adapter is on and functioning properly, verify that the access point (eg. wireless router) is also connected to the internet and functioning properly. Make sure all lights that are supposed to be lit are, usually one for connection and one for transmit. If the router is not functioning properly, unplug it for 30 seconds to 1 minute to reset it (you will not lose any settings). If you verify that everything is working properly on your end, contact your service provider.

Number Lock has the 9 Caps Lock has the A Scroll Lock has the Down Arrow

the "9" inside a lock means that your Num Lock button has been pressed. If all you see is the ">" then maybe you are looking at what's called a DOS prompt, and I have no idea why that would display. Try holding the Power Switch for 10 seconds and restart your computer. Hopefully things will be better, and you know where your Num Lock key is.

yes

Usually you need to press a key in addition to the lock key. Try using a combination of the lock key and FN or CTRL or SHIFT.