– 50 –Attempt to enter &RQVXPHU(UURU0RGH,I/('·VOLJKWthe CSM is tripped. Consult On the Main ControlBoard CSM section of this service guide to diagnoseand repair.If the service LED on the machine control has aVWHDG\RQRURQHWLPHSHUVHFRQGÀDVKFKHFNWKHdoor harness and follow the below DCV checks.For all models, the UI operational voltage is outputfrom the main control on connector J722 pin 2black/green to pin 5 yellow/black. If 13.5 VDC is notfound here, replace the main control.UI operational voltage is input at the UI control onconnector J401 pin 1 black/green to pin 2 yellow/blue. If voltage is not found here, but was foundin the previous step, check and replace the doorharness (if needed). If 13.5 VDC is found and thecontrol does not function in Consumer Error Mode,replace the UI.A door harness may become pinched and damagedwithin the door or at the tub lip where the harnessexits the inner door assembly. Sleeving may coverthe damaged area and make a visible check notviable. The harness must be checked by using anohm meter and checking continuity of each wire ateach end of the harness at the connectors. Movingthe harness in various directions may be helpful indiagnosing the harness.If buttons function properly but the LCD display isnot functional, check for proper voltage at the UI. Ifvolts are correct, replace the UI.,IWKHUHLVQRRSHUDWLRQGLVSOD\RU/('·VZLOOQRWOLJKWCheck for 120 VAC entering the machine control. Ifno voltage is found, or voltage disappears whenStart button is pressed, a house electrical fault issuspected.Check the Service LED on the machine control for aÀDVKSDWWHUQ8VHWKHWDEOHEHORZWRWUDQVODWHDQGrepair (using the Service LED as a reliable diagnostictool).Blink Pattern Meaning1x per 3 seconds Dishwasher in not running acycle. Select a cycle and pressStart.2x per 3 seconds Dishwasher is in Delay Startand waiting to start a cycle.The cycle will begin once thedelay expires.3x per 3 seconds Dishwasher is running a cycle.4x per 3 seconds Dishwasher is paused. Closethe door and press Start toresume the cycle.5x per 3 seconds Dishwasher has completed acycle and the Clean Light is on(door has not been opened).6x per 3 seconds Dishwasher is in Demo Mode.To exit Demo Mode, press andhold Start and Heated Dry for5 seconds.7X per 3 seconds Current Sense Module istripped. See the CSM section ofthis guide.1x per second Communications lost betweencontrol boards. Checkconnections, replace UI or MCas needed.Flashing rapidly(4x per second)Software error, replace MC.6WHDG\RȺ Dishwasher is not powered.Check supply voltage, replaceMC as needed.Steady On UI personality not set,communications lost betweenUI and MC.Main Control 13.5 VDC #2 Black/Greento #5 Yellow/Blue13.5 VDC #1 Black/Greento #2 Yellow/BlueUI Diagnostics