Is the oven door locked at power up?
Press Cancel/Off key to start a latch reset, wait 20-30 seconds and open door.
Turn the power off at the circuit breaker or fuse box for 1 min, then turn power back on.
Is the oven door locked due to power failure during Self-Clean?
If power was interrupted during a Self-Clean cycle, select the "Self Clean" option, then select "Cancel". Wait a couple of minutes then try to start the cycle again.
If the oven clean cycle was started mistakenly:
Press Cancel/Off key. The oven will need to cool to approximately 200F(95C) before the oven door will open.
Do you see an Error Message F3 E0 "open temperature sensor?"
The temperature sensor has malfunctioned and requires service by an authorized service provider.