Appliances should last for years.  Most people replace product updates or upgrades.  My LG electric stove display and burners just quit for no reason.  Cleaned all ribbon connections this did not help.  Replaced the large burner this did not help.  Replaced primary circuit board this did fix the display but not the large burner.  Now the medium burner does not work.  I'm going to replace the stove.  I'm afraid to buy another LG product (oven/stove).