Can I keep running the equipment with this fault active?

Generally no. Faults on Appliance units are emitted when a sensor, safety, or control circuit is outside its operating envelope. Running through an active fault risks compressor, heater, or control-board damage. Diagnose and clear the fault first.

What part is most commonly replaced for Samsung Dishwasher Control Board Replacement - Signs & How-To?

The most frequently replaced parts for Samsung Dishwasher Control Board Replacement - Signs & How-To are listed in the Parts Reference section of this guide with OEM part numbers and typical price ranges. Check the table for direct replacements.

Is Samsung Dishwasher Control Board Replacement - Signs & How-To a DIY repair or do I need a technician?

Sensor swaps, fan motor replacements, and condenser cleaning are typical DIY-level repairs. Anything involving refrigerant, gas, or high-voltage (>240V) work requires a licensed technician for both safety and code-compliance reasons.

Samsung Dishwasher Control Board Replacement - Signs & How-To

Q: What does Samsung Dishwasher Control Board Replacement - Signs & How-To mean?

Unresponsive buttons, persistent error codes after other parts check out, and no-start conditions can point to main board failure. Replacing it restores operation.

Q: How do I fix Samsung Dishwasher Control Board Replacement - Signs & How-To?

Follow the step-by-step diagnosis below. The most likely fix is identified by checking power, sensor resistance, and control-board signals in order — using a multimeter and the part numbers documented in the parts reference table.

Samsung Dishwasher Control Board Replacement — What This Part Does

The main control board is the dishwasher’s brain. It receives signals from the touchpad, door latch, temperature sensor, leak detector, and other inputs, then runs the wash cycle by firing relays and motors. Samsung does not publish a single error code that always means bad board. Instead the board becomes the suspect after you rule out sensor faults, wiring problems, door-latch issues, and standing water in the base pan.

Board failures happen from power surges, moisture intrusion through poor seals, connector corrosion, or component wear on the PCB itself. Because the board sits behind the door panel near steam and spray, any leak or high-humidity event can damage solder joints and traces over time. Always verify the displayed error code meaning and check upstream causes before ordering a new board.

Jump to Replacement Steps

Signs It Needs Replacing

Touchpad buttons do nothing or respond intermittently The user interface may send valid signals but the main board does not process them, or connector pins between the two boards are corroded.
Machine will not start even though door is latched and no leaks are visible After confirming the door switch clicks and the base pan is dry, a dead main board is the remaining no-start cause.
Error code persists after replacing the sensor or part it calls out For example a tE code remains after installing a new thermistor, or an LC code stays on after drying the base pan and clearing the leak sensor.
Relays click but pump or motor does not run The board may energize relay coils but failed output transistors cannot drive the connected components.
Display is blank or garbled despite 120 V at the door Power reaches the unit but the board’s internal voltage regulation or display driver circuit is dead.
Cycle stops mid-wash with no code and will not resume Random hangs and resets suggest microcontroller or memory corruption on the control board.

How to Replace It

Shut off power at the circuit breaker and confirm the dishwasher display is dark.
Turn off the water supply valve under the sink, then pull the dishwasher forward enough to access the door panel.
Write down the full model and serial number from the tag on the door edge or left sidewall so you order the exact board revision for your machine.
Remove the screws around the inner door panel perimeter and carefully lift the panel away to expose the control board and wiring harnesses.
Take a clear photograph of every connector on the old board so you know exactly where each plug returns.
Disconnect all wire harnesses from the board by pressing release tabs or pulling straight off, then remove the screws or clips holding the board to its mounting bracket.
Transfer the new board onto the bracket, secure it with screws, and reconnect each harness one by one in the positions shown in your photo.
Reinstall the inner door panel and tighten all perimeter screws, slide the dishwasher back into place, and turn on water and power.
Run a short rinse cycle to verify the board accepts commands, completes the cycle, and clears any previous error codes.

The Part You Need

Part	Notes
Samsung dishwasher main control board	Amazon \| Match the full model number and revision suffix from your door-edge tag. Example part DD81-02147B replaces AP6975680 / PS12740689 / EAP12740689 on certain models.

If this part is failing you may also see one of these codes:

When to Call a Pro

If you see standing water in the base pan, hear the door latch click but the machine still will not start, or find burnt or corroded connectors at the board, call a tech to diagnose the root cause before spending money on a new control board. Technicians use multimeters to verify 120 V supply, check door-switch continuity, test thermistor resistance, and confirm harness integrity so you only replace the part that is actually failed. Gas appliance work is always pro territory, but dishwashers are electric-only and safe for DIY board replacement once you confirm upstream components are good.