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When applying voltage to the white and black cables the board is energized and 10 seconds later it sends a signal to the
compressor to start working. You must now bridge test points GND and P.P., which will turn off the compressor. Three
seconds later, a signal will be sent to the defrost resistance to start working and, at this moment, the white and blue
cables must give a reading of 127 A.C.V.
NOTE: If the freezer sensor is connected and does not record the temperature, the board will not send the signal to the
heater to initiate the defrost cycle.
