Product review (1 stars): LG makes inferior knob!
Unfortunately, the original oven knobs melted or broke down.  I think LG should be ashamed of themselves for building such an inferior product.  I tried to get the company to replace at no cost.  They "almost" agreed.  Unfortunately, the original purchaser of this appliance was the developer of my condo.  And this is yet another "horror" story.

All I can say is $120CDN for 4 knobs is better than LG's list price of $85CDN per knob.  Many condo owners "junked" their appliances and replaced it with another make.  Why would anyone pay 5x$85 to replace "DEFECTIVE" knobs.  Shame on you LG!!!

PS:  I read the operators manual.  No mention is made of removing the knobs during the self clean procedure.  But I would suggest this might extend the life expectancy of this knob!!