LG says several smokes and smells from the LREL6325 are normal: a burning or oily odor from the vent in a new oven (it fades, and running a Self Clean of at least 3 hours speeds that up), steam from moist food, moisture on the oven window, and smoke or odor during Self Clean, especially in a heavily soiled oven. Excessive smoke while broiling has listed causes: the meat is too close to the element, too much fat, the grid is upside down, grease has built up, or the controls were set wrongly.
Differential
Likely causes of “LG range or oven smokes or smells during use”, and how to tell them apart
- 1
A new oven burning off factory oils
What separates it A burning or oily smell on the first few uses
How to confirm Run the oven empty; LG suggests a Self Clean of at least 3 hours to speed it up
- 2
Grease built up on the oven surfaces
What separates it Old grease smokes every single time you broil, whatever you cook
How to confirm Clean the oven surfaces and use the broiler pan with the grid ribs up
- 3
Meat too close to the broil element
What separates it Heavy smoke fills the kitchen whenever you broil meat
How to confirm Lower the rack away from the element and trim excess fat from the meat
- 4
Heavy soil during Self Clean
What separates it Excessive smoke starts soon after starting Self Clean and keeps growing
How to confirm Press CLEAR/OFF, open windows, wipe the excess and restart
Before you touch a setting
Record this first — changing settings destroys the evidence
- When the smoke or smell occurs (broil, bake, Self Clean)
- Whether the oven is new or has been heavily soiled
- What food or spills were in the oven
Try in this order
0 of 5 completedIdentify the mode
ReversibleNote whether the smoke occurs during Bake, Broil, Convection or Self Clean; LG lists different causes for each.
Check the pan
ReversibleBroil with the grid on the broiler pan, ribs up and slots down, so grease drips into the pan; trim fat and lower the rack.
Clean spills
ReversibleWipe heavy spills before starting the oven, and clean the oven regularly if you broil often.
Vent a new oven
ReversibleRun an empty oven at 450 °F for an hour with a window open, or use Self Clean for at least 3 hours as LG advises.
Stop and reset
ReversibleIf smoke is excessive during Self Clean, press CLEAR/OFF, ventilate, wipe the soil and restart.
Model-specific
What is true of this model and not of its siblings
- Parts for this problem on the LREL6325 (RepairClinic, 2026-09-21)
- door gasket, part number MFZ64539501, at $117.98.
- Other models this page answers
- These steps also fit models LREL6323, LSGL6335, LSIL6336, WCEP6423, WSEP4723.
Stop boundary
When this stops being a self-service repair
- !If smoke continues after cleaning and the oven is empty, turn it off and call LG service
- !If you see flames or smell burning wire, turn off the breaker and call an electrician
Evidence ledger
Sources behind this answer
LG's online owner's manual for this model: the Cooking, Parts and Features, Noises and Wi-Fi troubleshooting tables, Lock Out, Self Clean, Settings, InstaView, Warm Zone and LG ThinQ sections.
LG USA support page listing this model's manuals and warranty.
Parts and list prices as shown on RepairClinic's parts search for this model number on 2026-09-21.
Exact questions
Common questions
Is a new-oven smell normal?+
Yes, LG says a burning or oily odor in a new oven fades in time.
How can I speed it up?+
Run Self Clean for 3 hours or more.
Is steam smoke?+
Steam from moist food is normal.
Can foil cause smoke?+
Yes, if it touches the elements.
Why does broiling smoke?+
Fat, grease build-up or a rack too close.
What about the window fogging?+
Moisture on the window is normal when cooking foods high in moisture.
Should I open a window?+
Yes, LG says to ventilate the kitchen during Self Clean.
What if birds are in the house?+
Move pet birds to another room.