Lg Oven Not Heating Up: Causes and Fixes
Quick Answer
LG oven not heating: LG uses ProBake Convection with a heating element behind the rear wall (not on top or bottom like traditional ovens). This rear element provides more even heating but is hidden from view. If the oven doesn't heat in ProBake mode but works in standard bake, the rear convection element has failed. Standard bake on LG ovens uses a bottom element like other brands.
LG oven not heating: LG uses ProBake Convection with a heating element behind the rear wall (not on top or bottom like traditional ovens). This rear element provides more even heating but is hidden from view. If the oven doesn't heat in ProBake mode but works in standard bake, the rear convection element has failed. Standard bake on LG ovens uses a bottom element like other brands. LG ovens display F9 for oven sensor faults and F19 for range communication errors.
What Does the NOT-HEATING Code Mean?
Lg oven not heating up: see brand-specific guide above.
Most Likely Causes
Based on aggregated repair data, here is the probability breakdown for this error code:
Symptoms You May Notice
- Lg Oven Not Heating Up symptom
Can you reset a Lg oven to clear the NOT-HEATING code?
Unplug 60 seconds.
Tools Required for Diagnosis
Diagnostic Checklist
Follow these steps in order. We start with the easiest external fixes before opening up the machine.
Follow brand-specific diagnosis above.
Follow brand-specific diagnosis above.
Check error codes and secondary causes.
Professional diagnosis if basic checks fail.
Frequently Asked Questions
Lg oven repair cost?
Repair or replace?
DIY?
Same Fix Works on These Brands
Lg shares the same hardware platform with these brands. The diagnosis and repair steps are identical.
Last verified for technical accuracy on March 15, 2026