One way a microwave door can cease to function properly is if the hinges are loose or damaged.
Fix microwave door latch.
Tightening the hinges on your microwave door is a task you can perform yourself in a matter of minutes.
Being a repairman i jury rigged it and it lasted several years but it failed completely this time and had to be replaced.
The door hook engages with the door latch to keep the door closed during operation.
Remove broken latch replace with new latch some playing around make sure spring moves freely.
Ge microwave oven.
For safety disconnect your appliance from the power source before beginning.
It will be found behind the inner door panel.
In fact if the door latch isn t snapped shut the microwave won t function at all.
Lift up inner door area on handle side.
Scott halseth the switch is called door sensing switch part number wb24x829.
Se the door properly preventing the door from opening.
Locate and remove the door latch assembly.
If the door hook is broken it won t relea.
When the door is opened during a cook cycle the monitor switch door sensing switch primary interlock switch and power relay are deactivated.
Unscrew 4 screws on back of door in channel that has bee exposed.
I found the microwave door latch still flexed too much as there are two locking latches that go into the latch assembly.
Pull door off microwave lay on flt surface.
You could use a multimeter and see if you get.
If the door hook is broken replace it.
The latch assembly is spring loaded to provide the necessary tension to engage the hooks.
I used a butter knife gently pry off the cover around glass on back of door.
Use care when snapping the latch into the holder.
I felt there was a good possibility that the bottom one would bend out over time and watched a fix where another guy cut a popsicle stick to size to wedge in and prevent the bottom flexing.
There may be more than one.
The latch originally broke when the microwave was just over a year old.
Took cover off removed timer panel assembly and replaced door latch.