Samsung DV220AEW - Trouble diagnosis

Troubleshooting _ 27
 System check mode
Special test mode:
• WhileinPowerOff,pressingtheDryLevel+PowerbuttonssimultaneouslywillputthedryerintotheSystemCheck
mode
• “t2”willdisplay.
• SystemCheckModeProgress
t2modeFunctionPerformedStart/PauseMotor(CW)RelayOn→HeaterRelayOn→HeaterRelayOff→Motor(CW)
RelayOff(Circulation)
4-3. TROUBLE DIAGNOSIS
Asthemicomdrymachineisconguredforthecomplicatestructure,theremightbeaservicecall.
Thebelowinformationispreparedforexacttroublediagnosisandsuitablerepairguide.
 Caution for the repair and replacement
Please follow below instruction for the trouble diagnosis and parts replacement.
1. Assomeelectroniccomponentscanbedamagedbystatic
electricityfromtheresinpartofdryerorthehumanbody,
removethepotentialdifferenceofthehumanbodyandthe
dryerbycontactingthepowerplugbeforeyoustartworking
at PCB.
2. SinceAC220~240VisappliedtothetriacT1andT2onP.C.B,theelectricshockmayoccurbytouching.Becareful
thestrongandweakelectricityaremixedeachother.
3. AstheP.C.Bassemblyisdesignedfornotrouble,donotreplacetheP.C.Bassemblybythewrongdiagnosisand
followtheprocedureofthetroublediagnosiswhenthemicomisnotoperatednormally.
No Problem What to do
1 WillNotStartorRun
• Allwiresarehookeduptotheircorrespondingterminals.
• Isthedryerispluggedin.
• Blownfuseorcircuitbreaker.
• IstheDoorswitchfunctional...doorclosed.Checkforerrorcode3(SeeTableforcode
denition).
• Start/Pauserotaryselectordialfunctional.
• IsthecontrolBoardoperational.
• BeltofforbrokenandBeltCut-offSwitchoperates.
• Isthemotorfunctional.
• Checkmotorwindingresistance:2.88ohmsbetweenpin#3and4,3.5ohmsbetweenpin#4
and 5.
2
Motorruns/tumblerwillnot
turn
• Beltofforbroken/damaged.
• Idlertensionspringtooweakorstretched.
• Idlerpulleyjammedorstuck.
3
Runsafewminutesandthen
stops
• Lintbuilduparounddrivemotor.
• Lowvoltagepresent.
• Blowerimpellerblockedinblowerhousing.
• Checktheactuatorofmotor.
Poweroffstate
(Normalusermode)
Dry level +Power Systemcheckmode
Powersupplyplug