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Hello, if the door is ajar the locks won't operate. You can try cleaning the switch or you can replace it. To clean the switch you spray brake clean in the door latch. Open and close the door 5 times. Then take WD40 or lubricant and spray it in the latch. Repeat opening and closing the door. The door ajar light should free up and work. If it didn't work replacing the switch may be the only fix.