GE GFDS350 Technical Service Manual

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GE GFDS350 Technical Service Manual Manual pdf 46 page image

– 46 –Troubleshooting(Continued Next Page)Service Test ModeHow to enter to service mode and navigate:From idle state, press and alternate between the “My cycle” and “Delay Start” buttons to enter service mode.Upon entering the service mode, the Control shall be in test selection mode and display the first test number(t01). Rotating the knob counter clockwise (CCW) shall decrement the test number in the display. Rotatingthe knob clockwise (CW) shall increment the test numbers in the display.Once the test number is selected, pressing [Start/Pause] shall begin the selected test.During a test, pressing power button shall terminate that test and bring the control to the test selectionmode (test number is displayed on the display).Pressing Power key during the test selection mode shall exit the Service mode.T01 Error codesStart/PauseKnobStart/PausePowerDisplay error codesThe knob can be turned CCW and CW to see all logged error codes.Clear highlighted error code from machineReturns to service mode screenT02 Version infoStart/PauseKnobKnobKnobKnobPowerDisplay the current version of softwareTurn the knob CW while the display shows the UI SW version - The display will alternatebetween “SPb” and the 3 digit MC SW version, displaying each for 1 second at a timeTurn the knob CW while the display shows the MC SW version - The display will alternatebetween “EUI” and the 3 digit UI Eeprom version, displaying each for 1 second at a timeTurn the knob CW while the display shows the UI Eeprom versionThe display will alternate between “EPb” and the 3 digit MC Eeprom version, displayingeach for 1 second at a timeTurn the knob CCW during each of the software versions - verify that the previous displayis storedReturns to service mode screenSERVICE MODETEST SEQUENCEDemo ModeTo enter demo mode:1. Turn the unit off so the screen is blank.2. Unplug the unit from power and wait 10 seconds.3. Plug the unit back in.4. Open the door.5. Within 30 seconds after plugging the unit back in, press the START/PAUSE button 4 times.6. Close the door.7. Press the POWER button.To exit demo mode:8. Repeat the above sequence.Note: In the demo mode, the control will proceed through the selected cycle but will not activate anycomponents.