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My microwave door latch/latch mechanism spontaneously stopped working, and now the door won’t stay closed, and thus the microwave won’t turn on… unless you close it just right and either hold it exactly shut while it’s on, or use rare earth magnets (the exterior is steel) to keep it shut. But if something makes the house, or that wall, vibrate for any reason, the microwave is likely to stop, as the latch mechanism senses the door opened slightly. (Otherwise imperceptibly, but bonus points for stringent safety features!) This style microwave does not have a button to open the door, one just pulls the stationary handle. The microwave in question is a Samsung 1.7 kW over-the-range style, and I’ve included pictures, if that helps.
Hi @sareliz It may be that the latch holder - part #DE61-01435A (supplier example only) has either come loose or is faulty. It is mounted on the base of the oven. Disconnect the power from the oven and then check if the screws holding the latch holder are secure on the base of the oven. If they seem tight you may have to remove the cover and check that the latch holder is OK. Here’s an image of the holder from a parts diagram. It is part # 41-3-2 which may help you to locate where it is screwed into the base.
(click on image) Be safety aware when working inside microwave ovens. The HV capacitor can store >5000V DC for months even if the power has been disconnected for this length of time. This amount of voltage can seriously injure you! The power needs to be disconnected from the oven and then the HV capacitor needs to be correctly discharged as soon as it is accessible after the removing the cover from the oven and before commencing any further work in the oven. If the latch holder is faulty search online using the part number only to find suppliers that suit you best.