What does error code ob mean on a Whirlpool Calypso washer? The washer stops in mid cycle with the error code ob. I restart it and after a few minutes it shows the same error code again.

The OB indicates and out of balance condition has been detected by the motor control. You say this happens when the washer is empty also. One thing about the OB error is that the lid must be opened to clear the error and allow the washer to advance to the next part of the cycle. If the lid is not opened to adjust the clothes then the OB error will happen again.

If the OB error was cleared and the OB occurs with an empty load then the motor control has failed.

The drain pump must work. The image below shows how to run a diagnostic test to check the drain pump. Follow the instructions in the image below and check the drain pump operation. If the pump runs and the water does not drain then the sump is clogged. If the pump hums but does not run then the pump needs to be replaced.

http://media.fotki.com/1_p,wkktswgwqtqrbwfxgtqsskgwtqkq,vi/gftrgbbtfxfffgqskfk/1/1303472/5961857/image48348img-or.jpg

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