LMV1813ST (CS1ELGA) LG Microwave - Instructions

I UNPLUGGED the microwave and removed the cover, using a phillips and a Torx screwdriver for the machine screws. I set these screws aside, so as not to confuse them with the later encountered screws. I photographed the magnetron to assure proper placement of the 6 phillips machine screws involved in reassembly (marking the the locations on the old magnetron would do as well. I marked the old magnetron "old", to avoid later confusion. I removed the two screws holding the shields to the magnetron. I removed 3 of the 4 screws holding the magnetron to the microwave, leaving one of the top screws. I held the magnetron securely and removed the last screw, pulling out a the part of the magnetron that penetrated the microwave. I installed the new magnetron in reverse order. One problem I encountered was locating one of the six screws, which had been pulled into the old magnetron by magnetism.

unplug the unit then pull down , lot of screws are on top. open the cover . you could see the parts that need to replace on the right hand side (heavy side). disconnect wires then test the parts that need to replace by a tester to make sure that it's really broke .then unscrew part and replace .

Initial failure of over range microwave Aug 3rd. Control Panel worked but no heat. Took to local LG authoriaed local repair place. They fixed it quickly and we re-installed it. Worked fine for 2 months then had similar failure again. Agaim took to same authorized repairer. They kept unit for 3 months but finally concluded theu could not fix it and suggested we contact LG for a partial refund. When they tested the unit during re-assembly in my presence, there was a blue flash and the fuse blew. Since we had built a custom tile mural back splash around this unit, I brought it home, ordered a number of time delay fuses new capacitor and two new high voltage diodes. However, using my Fluke DMM, I checked the existing capacitor and high voltage diode and they checked OK so I just replaced the time delay fuse. The high voltage transformer leads had 2 possible ways to connect to capacitor and diode. Tried one way, plugged unit in and turned it on, and immediatly blew the fuse. Replaced the fuse and reversed the high voltage transformer connections,amd turned unit pn, and it worked perfectly. Since we had experienced several power failures during the time of the original failure, the repairer concluded that power spikes might be at fault, so I also purchased a TrippLite ISOBAR4ULTRA 3300 Joule surge protector between wall outlet and microwave, and re-installed over range. It has worked perfectly since.

Pop old one out and replaced it with new one.

very simple

really easy

Used screw gun with long bit to disassemble door and then to reassemble.

To install the door, you need to pull the top grill(molding), remove the inner molding frame from the door. Hold the dor and pull it up to unlock and slide out. To instal new door, simply remove the inside plastic molding and place the for in. Replace the milding to lock it. Instal the upper grill ( molding). The control pannel might give an error at first. Dimply adjust the foor by closing and open several times.

Unplug unit, open door, remove two screws top trim, then one screw at top of controller unit. Rotate right side of unit (facing it) out 1/2 inch first. Push unit up slightly to free the left side plastic clips then pull unit out. Remove 5 electrical connections. Installation is the opposite.

Grill would not go into place without removing the control panel. Had to remove one screw at top of panel and then install grill and control panel at the same time. Once all are in place you are unable to replace the screw holding the control panel. The grill seems to hold he panel in place securely. Should have been easier but the grill tabs just would not go into place with control panel attached.

I unscrewed the light cover, removed the burned out light bulb and replaced it with one I ordered on Partselect.com. It was very easy.