GE Range Error Code LOCK DOOR

The LOCK DOOR message on a GE range is directly tied to the self-clean cycle and the oven door locking system. When you initiate a self-clean cycle, the oven is designed to lock its door before temperatures climb to the extreme levels used during cleaning, typically around 800 to 900 degrees Fahrenheit. If the door is not fully closed and latched at the time the self-clean cycle is selected, the control board detects that the door lock mechanism cannot engage properly and displays LOCK DOOR to alert you that the cycle cannot proceed safely.

The second scenario for this message occurs after a self-clean cycle has completed. The oven door remains locked by the latch motor or latch assembly until the internal cavity temperature drops below a safe threshold, usually somewhere around 400 to 550 degrees Fahrenheit depending on the model. If you see LOCK DOOR during this cool-down phase, it does not indicate a fault in the traditional sense. It is simply the control system communicating that the interlock is still active and the door will not open until cooling is complete. Pressing the CLEAR/OFF pad during this phase cancels the residual cycle timer and allows the oven to cool down without interruption.

If the LOCK DOOR message persists well after the oven has had adequate time to cool, the door latch assembly or its associated wiring may be the source of the problem. The latch motor drives a switch that signals the control board when the door is fully locked or unlocked. A failed latch motor, a misaligned latch arm, or a faulty door lock switch can cause the board to receive incorrect feedback, keeping the message displayed even when the door is physically closed and temperatures are within normal range.