As a combination wall oven (oven plus microwave in one cavity stack), the WCES6428F shares its core mechanism with the rest of LG’s wall oven lineup at roughly 4.7 cu ft. On this platform, the F31 fault code is one of the more common reasons it gets a service call. LG’s own US product page still carries this model with an active status flag, read 24 September 2026.
Service calls on this wall oven most often trace to one of a short list: the F31, F1 or F2 fault codes. We confirm which one applies against the model and serial number before ordering a part.
Key Features
- Electronic touch control with a digital display
- Convection fan in the main cavity
- Combination wall oven (oven plus microwave in one cavity stack)
- Rated at 4.7 cu. ft.
- Sold under the LG STUDIO badge
Most Common Issues on This Model
01
F31 fault code — second-cavity fault on double-oven control boards
02
F1 fault code — control-board fault
03
F2 fault code — oven temperature sensor fault