CBGU3039X is LG’s model number for this gas cooktop, part of the LG SIGNATURE range. LG’s own US product page still carries this model with an active status flag, read 24 September 2026. On this platform, the F1 fault code is one of the more common reasons it gets a service call.
Service calls on this cooktop most often trace to one of a short list: the F1, F5 or F7 fault codes. We confirm which one applies against the model and serial number before ordering a part.
Key Features
- Electronic touch controls set into the cooktop surface
- Individually mapped burner or element zones
- Gas cooktop
- Sold under the LG SIGNATURE badge
Most Common Issues on This Model
01
F1 fault code — control-board fault
02
F5 fault code — keypad or touch-control fault
03
F7 fault code — function-key stuck or shorted, sometimes from spilled liquid on the glass