Error code reference

Samsung Washer Error Code BC2

Switch check (main relay check) error caused by Power button being pressed continually for more than 12 seconds, or another button pressed for more than 30 seconds, or jammed/stuck switch due to control panel deformation or sub PBA screws tightened too much.

SourceSamsung Top-Load Washer - Full Service Manual (WA52J8700AP/AW)p. 20, 25-26

Diagnostic procedure

The full BC2 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
Check the contact between the control panel buttons and their corresponding tact switch; ensure there is a gap between button and micro switch.

SourceSamsung Top-Load Washer - Full Service Manual (WA52J8700AP/AW)p. 20, 25-26

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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