Maytag MEDB835DC W10240504 - Page 22

FOR SERVICE TECHNICIAN'S USE ONLY The dryer will beep and the current dryness setting will be displayed on the 7-segment display. The factory default value is "2". 2. Pressing the dryness or dry level button cycles the dryness setting between 0, 1, 2, 3, and 4, starting at the current setting. The new setting is displayed in the 7-segment display. 3. With the display showing the desired dryness setting, press the START button to save the drying mode and exit to standby mode (the START button in this mode does not start a drying cycle). The result will be stored in EEPROM of the ACU and will be retained after a power loss. NOTE: If there is no user activity for 20 seconds, or a button other than START, DRYNESS, or DRY LEVEL is pressed, the dryness setting is reverted back to its previous setting. 4. Press the POWER button at any time to cancel changes and exit from this mode. TEST #6: Buttons and Indicators This test is performed when any of the following situations occurs during the "Key Activation & Encoder Test" (see page 6). 3 None of the indicators or display turn on 3 Some buttons do not light 3 No beep sound is heard None of the indicators or display turn on: 1. Unplug dryer or disconnect power. 2. Remove console to access the ACU and user interface (UI). 3. Visually check that ALL ACU connectors are inserted all the way into the ACU. 4. Visually check that ALL UI connectors are inserted all the way into the UI. 5. If all visual checks pass, perform TEST #1: ACU Power Check, page 12, to verify supply voltages.  If supply voltages are present, replace the user interface and housing assembly.  If supply voltages are not present, replace the ACU. 6. Reassemble all parts and panels. 7. Plug in dryer or reconnect power. 8. Perform the "Key Activation & Encoder Test" (see page 6) to verify repair. Some buttons do not light: 1. Unplug dryer or disconnect power. 2. Remove console to access the ACU and user interface (UI). 3. Replace the UI and housing assembly. 4. Reassemble all parts and panels. 5. Plug in dryer or reconnect power. 6. Perform the "Key Activation & Encoder Test" (see page 6) to verify repair. No beep sound is heard: 1. Verify that the "End Beep", "Audio Level", or "Cycle Signal" volume is turned on. Press the END BEEP, AUDIO LEVEL, or CYCLE SIGNAL button to adjust the volume level. 2. Unplug dryer or disconnect power. 3. Remove console to access the ACU and user interface (UI). 4. Visually check that ALL ACU connectors are inserted all the way into the ACU. 5. Visually check that ALL UI connectors are inserted all the way into the UI. 6. If all visual checks pass, replace the UI and housing assembly. 7. Reassemble all parts and panels. 8. Plug in dryer or reconnect power. 9. Perform the "Key Activation & Encoder Test" (see page 6) to verify repair. TEST #7: Door Switch Functionality is verified when opening the door turns on the drum light. Closing the door should turn off the drum light. If the preceding conditions are not met: 1. Unplug dryer or disconnect power. 2. Remove console to access the machine electronics. 3. Check that the wires between the door switch and ACU are connected. (Refer to wiring diagrams on pages 25 and 26.)  If the connections are good, replace the wire and door switch assembly and retest.  If wire and door switch assembly have been replaced and dryer still does not start, replace the ACU. 4. Reassemble all parts and panels. 5. Plug in dryer or reconnect power. 6. Verify that the dryer will start with the door closed, and that it stops when the door opens. PAGE 22 DO NOT REMOVE OR DESTROY