Try unplugging power cord or trip circuit breaker, to cut the power to the appliance, then wait one or towo hours for the oven to cool down completely.
If the door stays locked, then there is a fault, probably a faulty temp probe that had blown because of high temperatures generated on self cleaning, or a defective control assembly. In that case you will need to call a technician to take apart the oven and fix the fault.
Enter model number here to find assembly diagrams and parts.
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