I really think that LG's quality control has been lacking. I have three and the one oldest one (over 10 years old) is the best. The other ones are less than three years old and both are not worth using. Temps not constant is the biggest issue. I added a fan and it only lasted a year. In a pinch, I use the "old reliable" LG. I was lucky to pick up a spoertsman set for $300 recently.
Tony G
Tony G