Error code reference

Samsung Washer Error Code DDC

Add door is open; add door open/close switch fault or main PCB fault caused by deformation of add door switch, forced pulling, or pressure difference during Boil wash.

SourceSamsung WF50K7500 Washing Machine - Service Manualp. 26, 28, 34

Diagnostic procedure

The full DDC procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Close the Add Door and press START/PAUSE to resume operation; if door is not actually open, check assembly of wire harness and PBA.

SourceSamsung WF50K7500 Washing Machine - Service Manualp. 26, 28, 34

More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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