The part(s) or condition(s) listed below for the symptom Microwave door won't open are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.
Inspect the open lever for damage. If the open lever is broken or damaged, replace it.
Inspect the door spring for damage. If the door spring is broken, replace it.
Inspect the door latch for damage. If the door latch is broken, replace it.
The door hook engages with the door latch to keep the door closed during operation. Since the door hook is made of plastic, it can break due to regular wear. If the door hook is broken, it won’t release the door properly, preventing the door from opening. If the door hook is broken, replace it.
The button spring is located on the inside of the door open button. If the spring is broken, replace it.
The door open button might have a broken internal component. If the button is broken, replace the button.
The handle actuator is connected between the door open button and the door latch assembly. Since the handle actuator is made of plastic, it can break from normal wear. If the handle actuator is broken, replace it.