LG LDG3015SB Service Manual page 76

Symptoms and Questions
"Burning" or "oily" odor emitting from the
vent.
Strong odor.
TROUBLE SHOOTING
This is normal in a new oven. To speed the process, set a self clean
cycle for a minimum of three hours. See "SELF CLEAN" in the Care
and Cleaning section.
An odor from the insulation around the inside of the oven is normal
for the first few times the oven is used.
11-3
Possible Cause/Solution