Product review (1 stars): Cannot calibrate for different temperatures
The oven is calibrated at 350 degrees and cooks fine at this temperature. However, when I set the cooking temperature to 400 degrees the internal temperature is actually 450 degrees and I burn things. If I try to cook at a lower temperature the calibration is off in the other direction. I had a technician come out to fix the problem. He confirmed my calibrations and told me there was no fix because the ovens were designed this way. His statement was confirmed by several LG employees by email and phone.  The technician suggested I get a remote read cooking thermometer and use that for my oven temperature. Would not recommend this oven. I generally had a good impression of LG before this. UPDATE:I I got an external reading thermometer and tried to calibrate the oven for use,. The problem occurred between 350 and 352 deg. The internal temp went up by 50 deg with this 2 degree change. LG still would do nothing. I had a local repairman confirm my calibration. He talked with an LG tech and both said it needed a new electronics board. $375 later the oven is working  correctly. After initially offering to help, then denying there was a problem, they will still not help offset the cost.