If a new LREL6325 cooks differently from an old oven, LG says the oven is factory calibrated and to follow recipe times for the first few uses, then adjust the thermostat yourself: press Settings repeatedly until AdJU appears, key the number of degrees on the keypad, press Settings again to add a minus sign, and press START. The oven can be shifted up to 35 °F either way, LG suggests starting at 15 °F, and the change does not affect broiling or Self Clean temperatures.
Differential
Likely causes of “LG range or oven oven temperature is too hot, too cool or uneven”, and how to tell them apart
- 1
A thermostat offset that does not suit your cooking
What separates it Baking is consistently too dark or pale compared with your old oven
How to confirm Use AdJU under Settings to shift the oven 15 °F, test, then fine-tune by 5 to 10 °F
- 2
Convection auto conversion changing the set temperature
What separates it The display shows 325 °F after you set 350 °F for Conv. Bake
How to confirm Avto subtracts 25 °F on purpose; turn Avto off in Settings if you want the literal temperature
- 3
Wrong rack or an unlevel rack
What separates it Food browns on one side or bakes unevenly even when the temperature is correct
How to confirm Use the rack position from the baking guide and check the oven rack is level
- 4
Foil or cookware blocking air flow
What separates it Food underbakes even though the oven display reaches the set temperature
How to confirm Remove foil from the racks and use the right size of pan
Before you touch a setting
Record this first — changing settings destroys the evidence
- The set temperature and what an oven thermometer reads
- Whether convection or Conv. Bake was used
- Which rack position and pan were used
Try in this order
0 of 5 completedGive it a few uses
ReversibleFollow recipe times and temperatures carefully for the first few uses. LG says the oven is factory tested and calibrated.
Open Settings
ReversiblePress the Settings button repeatedly until AdJU appears on the display, ignoring the other options such as Avto and PrE that come first.
Enter the offset
ReversibleKey the number of degrees on the number keypad. Press Settings again to add a minus sign when reducing the temperature, then press START.
Check auto conversion
ReversibleIn Settings the Avto option subtracts 25 °F in Conv. Bake and Conv. Roast; turn it on or off with the 1 key and START.
Verify with a thermometer
ReversiblePlace an oven thermometer on the center rack and compare it to the display after preheating, then adjust by 5 to 10 °F steps.
Model-specific
What is true of this model and not of its siblings
- Parts for this problem on the LREL6325 (RepairClinic, 2026-09-21)
- pcb assembly, main, part number EBR89295701, at $211.60; convection motor, part number EAU61865305, at $68.20.
- Other models this page answers
- These steps also fit the LREL6323 electric range, LSGL6335 gas range, WCEP6423 combination wall oven.
Stop boundary
When this stops being a self-service repair
- !If an oven thermometer shows more than 35 °F away from the set temperature after using AdJU, call LG service
- !If the display shows F-9 with the temperature wrong, call service because the oven is not heating properly
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
How far can I adjust the temperature?+
Up to 35 °F higher or lower.
How much should I start with?+
LG suggests raising or lowering the thermostat 15 °F to start.
Does AdJU change broiling?+
No, it does not affect broiling or Self Clean.
Is the setting kept in a power failure?+
Yes, it is retained in memory.
What does Avto do?+
It subtracts 25 °F for convection cooking.
Why is the oven cycling on and off?+
LG says that is normal temperature control.
Can foil cause uneven cooking?+
Yes, on racks it restricts air flow.
How do I reset the offset?+
Return to AdJU and enter 0 degrees, then press START.