How to Change a Control Board in a Dishwasher: A Step-by-Step Guide

A malfunctioning control board can leave your dishwasher unresponsive or stuck mid-cycle. Replacing it yourself can save time and money—if you’re prepared. In this guide, we’ll walk you through diagnosing and replacing a faulty control board safely.

What Is a Dishwasher Control Board and Why Might It Fail?

The control board is the dishwasher’s “brain,” managing functions like cycle selection, timers, and sensor inputs. Over time, it can fail due to moisture exposure, power surges, or worn-out components. Common signs include:

• Buttons not responding

• Error codes flashing repeatedly

• The dishwasher starting randomly or stopping mid-cycle

How to Diagnose a Faulty Dishwasher Control Board

Before replacing the board, confirm it’s the culprit:

• Check for power issues: Ensure the dishwasher is plugged in and the circuit breaker hasn’t tripped.

• Test buttons and displays: If some buttons work but others don’t, the control board may be failing.

• Inspect for visible damage: Look for burnt spots, corrosion, or loose wires on the board.

How to Replace a Dishwasher Control Board: Step-by-Step Instructions

Tools and Materials You’ll Need

• Phillips and flathead screwdrivers

• Needle-nose pliers

• Replacement control board (match your model number)

• Multimeter (optional, for testing circuits)

Step 1: Disconnect Power and Prepare the Dishwasher

Safety first! Unplug the dishwasher or turn off the circuit breaker. Shut off the water supply valve if your model requires it. Remove the lower access panel or door front to expose the control board.

Step 2: Access and Remove the Old Control Board

Locate the control board (usually behind the door or under the top panel). Carefully disconnect the wiring harnesses by pressing their release tabs. Unscrew the mounting brackets and gently pull the board out.

Pro Tip: Take photos of the wiring setup to simplify reinstallation.

Step 3: Install the New Control Board

Position the new board in place and secure it with screws. Reconnect the wiring harnesses, ensuring each plug snaps into place. Double-check connections to avoid errors.

Step 4: Reassemble and Test the Dishwasher

Replace the panels and restore power. Run a short cycle to test the new board. If the dishwasher operates smoothly, you’ve succeeded! If error codes persist, revisit connections or consult a professional.

When Should You Call a Professional Instead?

If you’re uncomfortable handling electrical components, notice complex wiring, or the issue persists after replacement, contact a technician. DIY mistakes can damage appliances or void warranties.

Conclusion: Restore Your Dishwasher’s Performance with Confidence

Replacing a dishwasher control board is manageable with patience and the right tools. For a seamless repair, ensure you use high-quality, compatible replacement parts.

If you’re sourcing a reliable control board, Luphi Electronics offers precision-engineered components designed to meet OEM specifications. Their boards are rigorously tested for durability and performance, making them a trusted choice for DIYers and technicians alike.

[Explore Luphi Electronics’ dishwasher control boards] to find the exact match for your model and enjoy hassle-free installation backed by expert support.

By following this guide, you’ve not only fixed your dishwasher but also gained the confidence to tackle future appliance repairs. For premium parts that prioritize longevity and compatibility, Luphi Electronics ensures your DIY efforts last.