Samsung dishwasher continues running on the drying stage. Has noisy and the burning smell. I Had to unplug the wire to shut off. the noisy comes back when plug in the wire even without wash.

SOURCE: Bosch shu9905

Check the drain pump. First, manually initiate drain by pressing the second and fourth buttons on the keypad at the same time. If it pumps out, disregard the rest. If it doesn't at least hum, check for power at the motor.
Remove lower rack, lower spray arm, and screens in bottom, remove all water inside. Check for debris under pump cover in bottom of sump. The drain pump suction is through the hole on the left.
Behind the toe panel on the left is the drain motor, If no debris was found inside, the drain pump may have failed. Remove outer door panel (you may need to remove the two screws on the sides of the control panel.) Remove the metal panel across the top of the motor area , disconnect hose in front of pump, disconnect wires to pump, press tab at top of pump and rotate clockwise to remove pump. The impeller could be loose on the motor shaft, or the motor windings failed.

SOURCE: Burning smell on my laptop

Unless you have the ability to to replace the plug connector part yourself, you will have to take it in to a shop who can do that kind of fine soldering for you. If nothing else is damaged, it should be ok with replacing just that burnt out part.

SOURCE: Dishwasher burning smell now not working

it sounds like the motor may have burnt out

SOURCE: Bosch SHX33A runs continuously. Never finishes cycle.

I have a guide here to walk you through the process of clearing the drain system. You most likely have a clog somewhere and the dishwasher can't proceed because it would cause it to flood.

SOURCE: Whirlpool 24" built-in GU1200XTLBO dishwasher electrical smell

This may be the smell of Varnish used in motor winding. When we turn on the machine it gets heated a little bit resulting in a burning electrical smell.