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WHAT DOES SIMPSON ERROR CODE MEAN?

My Simpson washing machine shows error code PO and now it wont work
maria, December 2009
My simpson 605 shows error E1, E2, and E3 doesn't do full cycles....

Kris, December 2009
It means that the pressure sensor on the circuit board has lost it's normal calibration. Not something you can repair yourself. Some circuit boards can't be re calibrated outside of the factory even by a tech. In those cases it means a new control board.

Lincoln Appliance NZ, December 2009
link Click here to see other fixes for Simpson.