Electrolux T5130C - Drum Motor Common

82
Troubleshooting
DRUMMOTORCOMMON
20:1O.H.DRUMMOTOR
NotvalidforwasherextractorswithMCU.
Thiserrorcodeisactivatediftheoverheatingprotectionforthedrummotorhastrigged.
Theoverheatingprotectionisautomaticallyrestored.Whentheoverheatingprotectionisrestored
theerrorcodeisautomaticallyresetandtheongoingprogramwillcontinue.Alongpressonthe
controlknob/startbuttonwillmaketheCPUresetandongoingprogramwillbeended.
Theerrorcodecanbetriggedif:
•Themotorisverywarm.Checkthattheventholesinthemotorarenotcovered.
Iftheoverheatingprotectionisnottrigged,butthereisstillanerrorcode:
•Checktheharness,connectorsandfunctionsbyreadingtheelectricalschematicandbyusing
theSHOWINPUTSmenuwhenthemachineisinservicemode.
20:2NOMOTORCOMMUNICATION
ThiserrorcodearisesiftherstmessagesentfromtheCPUtotheMCUwasnotrepliedto
duringstartup.
Action
•CheckthatthereispowerreachingtheMCU.CheckthefusesintheProtectionCable.Ifoneof
thecomponentsintheProtectionCableisdamaged,thecablemustbereplaced.
•CheckthattheindicatorLEDontheMCUison.TheLEDcanbeseenbylookingdownby
theMCUedgeconnections.
•CheckthatthecommunicationcablebetweentheCPUboardandtheMCUisintactandnot
damaged.Measurealsowithareferenceinstrumenttoseewhetherthereiscontactbetweenall
theleadsinthecommunicationcable.
20:3LOSTMOTORCOMMUNICATION
ThiserrorcodearisesifthecommunicationbetweentheCPUandtheMCUhasstoppedworking.
Action
•CheckthatthereispowerreachingtheMCU.CheckthefusesintheProtectionCable.Ifoneof
thecomponentsintheProtectionCableisdamaged,thecablemustbereplaced.
•CheckthattheindicatorLEDontheMCUison.TheLEDcanbeseenbylookingdownby
theMCUedgeconnections.
•CheckthatthecommunicationcablebetweentheCPUboardandtheMCUisintactandnot
damaged.Measurealsowithareferenceinstrumenttoseewhetherthereiscontactbetweenall
theleadsinthecommunicationcable.