Plate will not move back and forward - LG Over-the-Range Microwave

In a normal installation, there is a plate that mounts to the wall and bolts come down through the cabinet. Once the bolts are removed from the cabinet above mic, the mic should hindge forward. It takes two people to handle. How ever, in some cases an installation guy will add screws into the side of the unit. So look for some screws to the right and left of mic. Good luck!

Some older microwaves slid off the mounting plate. Try pulling it forward and see if it slides off. Some of them had screws that screwed into the back plate. Remove the grill panel and see if there are screws on each side.

Have a shop look at this---there usually is a recessed safety switch inside the jam that will prevent the unit from working with door open--sounds like the problem may be with it.

I had the same problem. The front plate is tabbed into place and removes with a flat tip screwdriver and prying in various spots to pop out the tabs. Once the front stainless plate comes off, you need to get behind the black buttons. There is a circuit board behind the buttons, which they make contact with. The problem with mine was the circuit board pushed beyond two metal tabs that keep it in place, so that the buttons were unable to make contact. I used a curved tool to pull the circuit board back forward in front of the tabs and into place. I put the front plate back on and it works like a champ.

it could be 1 of 3 things here 1 the coupling under the plate mat be warn or broken inside so the shaft of the motor maybe turning but not turning the plate take the plate out and put a cup of water in the unit and see if coupling moves without the plate if not thn see if you can remove the coupling and repeat the test if you can see the motor shaft moving thn u need a new coupling, if not thn you may need a new motor to test th motor you will need to turn the unit on it side remove the plate first on the underside on the unit round where motor is you will see a plate this will round or square you need to cut this away to expose the motor dont throw it away as you need to refit if after, it turns round and you screw it back on, when you have found the motor remove and replace it albeit the motor is powered by the pcb it is unlikely to be the pcb as the motor runs all the time so they do ware out also do look to see if your unit has a turn table switch off button on the controls or in the manual hope this helps and dont forget to unplug ur unit from the mains.

Jim here. In cabinet above microwave, locate 2 mounting bolts.
Place a box on the stove top to support the microwave once the mounting bolts are removed (you may wish to cover the box with a thick towel or small throw rug).
Procedure:
1. Unplug microwave.
2. Remove both mounting bolts from top of microwave (they secure it to the overhead cabinet).
3. With microwave front angled down onto box, pull some of power cord out of hole (to provide some moving space).
4. With microwave hand supported, remove box from stove top (a second set of hands would be helpful here).
5. HARD PART- detach top of microwave back from wall mounting plate by placing a hand under the bottom rear of the microwave and pushing up. (Wall mounting plate is screwed into the wall behind the microwave and provides both top and bottom support to the back of the microwave.)
6. Lower front of microwave until you can see about a 1-inch clearance between the top-rear of the microwave and the cabinet above it.
7. Firmly lift the microwave straight up and then bring forward. It should be free of the wall mounting plate.

the two long rectangular rod should slide down 1" to 1.5" unlocks the back plate and then it will slide forward and come off the wall.. hope it helps

Underneath the microwave, on the right & left hand corner sides at the back, there are levers that you pull down & it releases the mounting bracket.

You did not note your Make and Model. As there are many different types, all I can give you are basic directions.
First make sure the Power Cord is UN-PLUGGED from the wall.

1. Remove the Top Vent Grille Cover. There are screws holding this on, either Three you can see (one on each side and one in the center), or Open the Door and look for screws at the top of the Frame that go Up Into the grille.
2. Look in cabinet above unit for screws that hold unit up. Usually two (one on each side, front), can be more. Remove.
3. Look where Top Vent Grille Cover was removed. There should be a Long Screw or Screw-Type Lock at each( top) corner. These hold the unit tight on the Wall-Mount Plate. Remove. You should have HELP at this point as you will slide the unit forward until it comes clear of the Support Arms.
GOOD LUCK!!

1. Unplug the microwave. The plug is probably in a receptacle that is in the cabinet above the microwave, or in the wall above the shelf that is above the microwave.

2. Remove the two (or three) screws that go straight down through the bottom of the cabinet, or the shelf, into the top of the microwave. Have help in holding the microwave when you do this, as the front of the microwave will be able to fall down when the screws are removed.

3. Allow the front of the microwave to rotate down a little, then lift the back of the unit up about 1/2" to 1". At this point, the microwave will be disconnected from the mounting plate on the wall, so you can move it forward and carry it away.