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ErrBase

Lg Oven Error Codes

All Lg oven error codes with step-by-step troubleshooting, multimeter specs, and OEM part numbers.

9 error codes

CodeMeaning
F1F1 means the control board detected a continuous closed signal from the keypad, like someone's holding a button down forever. The board shuts things down as a safety move because a stuck 'on' signal could trigger runaway heating. Something in the keypad circuit is shorted.
highintermediate
F11The control board detected that one or more buttons has been held down longer than a normal press. It can't tell if it's a physical jam or an internal short in the membrane circuit, so it throws F11 and locks out to keep the oven from running unattended with a stuck key.
moderateintermediate
F19The main control board has detected an internal fault or quit working entirely. That board manages everything: temperature regulation, element switching, the display, and all the safety monitoring. When it goes, the whole oven goes with it.
highadvanced
F3The oven temperature sensor (RTD probe) has failed open or shorted. The control board cannot receive valid temperature data and has shut down the heating function as a safety measure.
highintermediate
F7The F7 error code on an LG oven indicates a stuck key or a short circuit in the control panel assembly. This happens when the control board detects a button signal being sent continuously for more than sixty seconds.
moderateintermediate
F9The oven's door lock motor or latch assembly didn't lock or unlock the way the board expected. The control board sent the command, waited for the confirmation signal from the position switch, didn't get it in time, and threw the fault. Something mechanical or electrical in that lock circuit isn't completing the handshake.
highintermediate
HUBReference guide covering all LG range and oven fault codes for the LRE and LDE series, including their causes, severity, and repair paths.
lowbeginner
NOT-HEATINGThe oven's not reaching or maintaining temperature because one or more heating components have failed. That's either a burned bake element, a failed igniter on gas models, a dead temperature sensor giving the control board bad readings, or a blown thermal fuse that cut power to the heating circuit entirely.
moderateintermediate
WONT-STARTThe oven's control system isn't completing its startup sequence. Either it's not getting proper voltage, a safety component like the thermal fuse has cut power to protect the unit, or the control board software's stuck in a locked state. Basically the oven sees a reason it shouldn't run and it's refusing to start.
moderateintermediate