LG Dishwasher CE Error Code — What It Means
The CE code points to a motor error or a loss of communication between the main control board and the motor sub-board. The dishwasher stops because the two boards are no longer talking, often from a wiring fault, a struggling pump motor, or a failed board.
Common Causes
- Loose board connector A connector between the main board and the sub-board worked loose and broke the link.
- Damaged wiring harness Chafed or corroded wires between the boards and the motor drop the signal.
- Motor overcurrent A pump motor drawing too much current can force the boards to fault out with CE.
- Failed sub-board The motor or display sub-board can fail and stop responding to the main board.
- Failed main control board A bad main PCB loses its handshake with the rest of the system.
- Power surge A surge or brownout can scramble the board communication until reset.
Step-by-Step Fix
- Press POWER off, then switch the dishwasher breaker off for 10 seconds
- Turn the breaker back on, power up, and start a new cycle to clear a glitch
- If CE returns, open the door panel and reseat the connectors between the boards
- Inspect the wiring harness from the boards to the motor for chafing or corrosion
- Check the pump motor for a jam that could be pulling excess current
- Replace the control board if wiring and motor both test good
- Run a cycle and confirm CE stays clear
Parts Often Needed
| Part | Notes |
|---|---|
| LG dishwasher main control board | Amazon | Match the PCB to your full model number, since boards are model specific. |
| LG dishwasher wiring harness | Amazon | Replace if wires between the boards or motor are damaged. |
| LG dishwasher circulation pump motor | Amazon | Needed only if an overcurrent motor is dragging the boards down. |
When to Call a Pro
If reseating connectors and checking wiring does not clear CE, board-level diagnosis is the next step. A technician can confirm whether the main board, the sub-board, or the motor is the failed part before you replace expensive electronics.