GE Profile DPSB650 Technical Service Manual page 34

Display Error Codes Test
Upon entering the Display Error Codes Test, the most recent error code recorded in the fault log will be
displayed on the DSSD. If no errors are recorded in the fault log, E00 will be displayed. Pressing
START will clear any displayed error codes from the fault log and cause the next most recent error code
recorded to be displayed.
After clearing all errors from the fault log, the appliance shall display E00 on the DSSD.
User Interface Test
Upon entering the User Interface Test, all LED's and the LCD's (LCD models only) will be illuminated.
The LCD model will turn on the LCD backlight and display a 1x1 checkerboard pattern upon entry.
Pressing the START pad will scroll the LCD through the display patterns as defined in the diagram
below.
Enter User Interface Test
Press Start Key
1 X 1
1 X 1
Reverse
Checkerboard
Checkerboard
Press Start Key
Press Start Key
All Pixels Off All Pixels On
Press Start Key
Inlet Temperature Test
Upon entering the Inlet Air Temperature Test, the inlet air sensor temperature in degrees Fahrenheit will
be displayed on the DSSD. If the measured temperature is less than 95 °F, LO will be displayed. If the
measured temperature is greater than 275 °F, OPn shall be displayed on the DSSD.
Pressing the START pad while in the Inlet Temperature Test will initiate heat and drive motor operation.
The START pad should be pressed to increase the inlet air temperature before testing the inlet
temperature sensor.
The Inlet Temperature Test displays the inlet air temperature sensor reading. It does not include room
air temperature.
Outlet Temperature Test
Upon entering the Outlet Air Temperature Test, the outlet air sensor temperature in degrees Fahrenheit
will be displayed on the DSSD. If the measured temperature is less than 80 °F, LO will be displayed on
the DSSD. If the measured temperature is greater than 160 °F, OPn shall be displayed on the DSSD.
Pressing the START pad while in the Inlet Temperature Test function will initiate heat and drive motor
operation. The START pad should be pressed to increase the outlet air temperature before testing the
outlet temperature sensor.
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