Samsung Washer Error Code 8CA3

The 8CA3 code indicates a set position fault, meaning the washer's internal MEMS sensor has detected that the unit may not be sitting on a level horizontal surface. The machine uses a dedicated sensor board to monitor its physical orientation during operation. If the unit is out of level or the sensor board has failed, this code will appear. Correcting the levelness of the machine or replacing the MEMS PBA typically resolves the issue.

A reset may temporarily clear the code, but if the underlying cause has not been addressed, the error will return. If the washer is genuinely out of level, resetting without adjusting the feet will not fix the problem. If the MEMS PBA is faulty, the code will reappear as soon as the machine runs another cycle. Treat the reset as a test step only, not a repair.

If the fix is simply adjusting the leveling feet, there is no parts cost involved. Replacing the MEMS PBA typically runs in the range of $50 to $150 for the part, plus labor if a technician is performing the work. If the Main PBA also needs replacement, costs can range from $100 to $300 or more for the part depending on the model. Getting a diagnostic estimate from a technician before committing to parts replacement is a practical approach.

Start by placing a spirit level on top of the washer and checking all directions. Adjust the leveling feet until the machine is stable and reads level, then run a cycle to see if the code clears. If the code persists despite the machine being properly leveled, the MEMS PBA may need to be replaced. If that does not resolve it, the Main PBA should be inspected and replaced as a final step.

Running the washer while it is out of level can cause excessive vibration, increased wear on internal components, and potential movement of the machine during high-speed spin cycles. It is best to address the leveling issue before continuing to run the appliance. If the machine is physically level and the error is sensor-related, the safety risk is lower, but the fault should still be repaired to ensure accurate monitoring.