Brand new stove. The top oven will not heat. There was no serial number on the oven when it arrived. A tech came out three times to try and repair. He could not fix it and recommended it be replaced. The tech also verified to LG that it was new and there was no serial number on the unit. We did have a serial number on the paperwork. We spent 5 months trying to resolve this issue with LG. The presidential liaison group told us we had reached the top and that they would not replace the oven. So we now have a brand new oven that does not work and WE have to pay for replacement. LG does not honor their products. We have been treated very bad and will never buy or recommend LG again.