LG Dishwasher Control Board Replacement

LG Dishwasher Control Board & Timer Parts

The control board (sometimes labeled as the main control or timer board) is the brain of your LG dishwasher. It orchestrates every cycle — from water fill and spray pressure to drying temperature and drain sequences. When your LG dishwasher displays error codes, doesn't respond to button presses, or runs cycles unexpectedly, the control board is often the culprit.

LG control boards are model-specific and often pre-programmed at the factory. An OEM replacement is a primary reliable fix — aftermarket boards frequently fail or don't communicate correctly with LG's sensor network. LG dishwasher control boards are in stock with same-day shipping on most models.

• Error codes (E1, E3, E5): Control board malfunction or sensor communication failure
• Unresponsive buttons or touchpad: Input circuit failure on the main board
• Cycle won't start or stops mid-cycle: Logic failure preventing cycle completion
• Water fill won't shut off: Board fails to close inlet valve solenoid
• Drain pump runs constantly: Stuck relay or sensor reading false water level

LG Dishwasher Control Board FAQs

How do I know if my LG dishwasher control board is bad?

Start with error codes — if your LG flashes E1, E3, E5, or similar, write down the exact code and look it up in your manual using your model number. If there's no error code but the dishwasher won't respond to button presses, runs random cycles, or starts then stops, the control board is the prime suspect. You can also listen for relay clicks coming from the control board when you press a button — silence means a dead board.

Can I replace the LG control board myself?

Yes. Most LG control boards are mounted on the inner door or side wall and secured with a few screws. Disconnect power, remove the board, unplug the wire harnesses, and snap in the new one. The new board comes pre-programmed for your model — no special tools needed. Allow 30 to 45 minutes for the job.

Why is OEM a recommended option for LG dishwasher boards?

LG control boards contain proprietary sensor calibrations and cycle logic programmed specifically for each model series. Aftermarket boards often lack the correct software or fail to communicate with your water sensors and motor assemblies. An OEM board help ensure compatibility and the same performance as the factory original.

Where do I find my LG model number for the correct control board?

Your model number is printed on a label inside the door edge, on the left side of the interior. It starts with LDT, LDTC, LDTH, or similar. Enter that number in Repair Clinic's parts finder to see the exact control board assembly your dishwasher needs. Control boards are model-specific — even minor model variations require different boards.

Shop LG Dishwasher Control Board Replacement Online

Ensure your LG dishwasher operates efficiently with genuine OEM control board replacement parts from Repair Clinic. A malfunctioning control board can lead to issues like unresponsive buttons or incomplete cycles. With our easy model number lookup, find the exact control board for your LG dishwasher and enjoy the convenience of same-day shipping. Our Price Match Guarantee and No-Hassle 365-Day Returns make your online shopping experience worry-free. For repair guidance, visit our Dishwasher Repair Help page, and consider browsing related parts such as Dishwasher Gasket Seal Parts for comprehensive maintenance solutions.

Find the Model Number on Your LG Dishwasher

On most LG dishwashers, the model number is printed on a label along the inside edge of the door or on the dishwasher tub rim, often toward the left side. Open the door fully and check the door frame and interior edges for a label listing the model and serial numbers. Copy the model number exactly, including letters, numbers, and any suffix after a slash. Enter it in the model number search to pull up the parts matched to your unit. This filters the full LG dishwasher parts selection, not just one category, so you can choose compatible parts with less guesswork and avoid ordering for a similar-looking model.