Samsung Intermittent Power Loss / Overheating Control Board

Dishwasher intermittently shuts off mid-cycle without completing; no error code shown.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Loose power connection, Overheating main PCB, Faulty door latch switch, Thermal overload on motor

Safety: Turn off power before inspecting electrical connections.

Check power connections: Inspect the junction box and main power connections for loose or burned wires.
Inspect door latch: A failing latch can momentarily open the circuit. Test and replace if intermittent.
Check for overheating: Look for discoloration or burnt smell around the main PCB. Ensure ventilation openings are not blocked.
Replace failing components: If the PCB or motor shows signs of overheating or failure, replacement is recommended.

Hard 4/5

Main Control Board

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