I am getting a message ERR when i press bake and then the temp and then start

Possibly a bad oven temp sensor. If the uinit doesnt read a temperature it will shut down to prevent a fire or over heating. The temp sensor is a thermister A temperature variable resistor that changes value as the temp changes. so If the main board doesnt get a response within a vertain resistance range it shuts things down. Sometimes since those parts are in the actual cooking area and subject to the heat and steam from cooking they can rust and break, or just get old and break. Or slam the door and break, you get the idea!!

Your range has been reset to celsius from fahrenheit. It must be reset to fahrenheit.

Press bake and broil pads simultaneous for approximately 3 to 4 seconds.

When SF comes on, press the broil pad.

You should see the Letter C.

Press again and the letter F will come on.

Press start.

Your range shouldproperly set the temprature now!

Possible burned out heating element or fault temperature control thermostat..

More information is required make model, display type LED, or blue neon red light goes out when on temp, without more info cannot help.
johnf1

Take a flat head screw driver and gently pretty the door. The temp decreases fairly rapidly and then the lock is disabled. Good luck!

Turn the breaker to the stove off for one minute, reset time and everything should work just fine. It worked for me.
Ken

I found the manual online. Apparently my unit is malfunctioning and should work by just pressing bake temp and then selecting the temp...

Usually, when an oven won't bake, it's because the bake element is burned out. The bake element is the black, pencil- thick tube at the bottom of the oven. When the oven heats, the element glows red. This element has an expected life-span of several years. It may last for only one; it may last for many more. When the element burns out, you need to replace it.
or try doing this
1. Turn the clock selector knob to OFF
2. “Tweak” the oven control by turning the clock selector knob slightly to the left (counter clockwise). This may stop the flashing message/beeping and clear the display window.

buy a new stove

Press and hold the Broil button for 5 seconds. You will see the c change to f. THen change the temp to what you need.