How can I fix my Fisher and Paykel GW709AU, it is sounding an error alarm?

Fault code 39 means that the machine has filled with water but the pressure sensor is telling the main control board that it is empty. Open the panel & check the air pressure tube on right hand side is firmly attached to the control board and is not kinked over or pinched closed. Take it off the board & blow down the tube to clear any blockage that may be in hose. Put it back on the board & try a wash. If fault still there then the pressure sensor is faulty. It is part of the main control board so the whole board will have to be replaced.

Lincoln Appliance NZ
October 2011