Does your Samsung refrigerator have a DU DU error code? This is a very strange and rare error code on these refrigerators. I have only seen this error code one other time before today.
This error code is not in any technical service manual and Samsung was unable to verify the meaning of this particular error code. I checked multiple things over two and three time before I figured out what was causing this DU DU error.
Disconnect Power Before Servicing
The main control board on Samsung refrigerators is located on the back of the refrigerator. The unit will need to be pulled forward to gain access to the control board. I use floor sliders so the floor does not get damaged. If you have a piece of plastic, cardboard, I would use it.
The board is located behind an access panel on the back of the refrigerator. The panel is held on with several small screws. Taking the screws out will allow the panel to come down and out of the two small clips located on the bottom. Once the panel is off you will see the board. Usually there is a small red light that will be on steady or blinking. If blinking it’s giving an error code. If steady, the refrigerator is operating as designed.
Now that you have the refrigerator out and the access panel off you can replace the main mother board. This is what I had to do to fix the DU DU error code. Samsung refrigerators use segments on the display to show which error is present. On this particular error it showed DU DU which no one has seen or knew how to fix.
The board is clipped into position with several small clips. Depressing the clips in will allow the board to come out. All the wires on the main mother board are plug and play type. You will see a small tab on each harness that needs depressed to allow the wires to come off the control board. With all the wires off the unit, press the tabs that hold the board in place and pull the board out.
I have seen several off these control boards that have burnt resistors or diodes on them. If yours does, it’s a dead giveaway that the control board is bad.
Is your Samsung refrigerator giving you an error code? Can you not find the error code on line? I can help you figure out what’s wrong with your Samsung refrigerator. Leave a comment below or come over to our free DIY appliance repair forum and I will help you.