Samsung DV448AEP - No Problem

30 _ Troubleshooting
No Problem What to do
4
Blowsfusesortripscircuit
breaker
- Isthebeltconnectedwell?
- Isthewindingofthemotorcontinuous?(Rotorwinding,statorwinding,generator)
- Isthemotorprotectornormal?
• Ifabovepointsarenotfound,thePCBassemblyisoutoforder.Replaceit.
5
Blowsfusesortripscircuit
breaker(GasModel)
• Duringignitionthedryerwilldraw6amps.WiththeburnerON,thedryerwilldraw4.5amps.
Ifthedryerisdrawingamperagesabovethis,thenthehousewiring,fuseboxorcircuit
breakerissuspectedtobeatfault.
• Igniterharnesslooseandshortedtobase.
• Incorrectwiringorwireshortedtoground.
• Drivemotorwindingshortingtoground.
6 Willnotheat(motorruns)
Openheatingelement.
• Hi-Limittripseasilyorisopen.
• Regulatingthermostattripseasilyorisopen.
• Membraneswitchopen.
• CheckThermistor.
7
WillNotDryGasModelPoor
Gas Ignition
Whenthedryerisoperatedonaheatsetting,theignitershouldbeenergizedandburnershall
rewithin45secondsat120VAC.Thefailureofacomponentinthissystemwillusuallybe
indicatedbyoneofthreesymptoms(No.8,No.9,No.10)
8 Theigniterdoesnotglow
Iftheigniterdoesnotheatup,removepowerandusinganohmmeter,checkthefollowing:
• Openamesensor
• Openigniter
• Shortedboostercoil
• Openwiring
• Badmotorswitch(Neutralsupply)
• Nopowerfromcontrol(L1supply)
9 Igniterglows-Nogasignition
Iftheigniterheatsupbutthemainburnerameisnotignited,removepowerandusingan
ohmmeter,checkthefollowing:
• Opensecondarycoil
• Openholdingcoil
• Openwireharness
• Stuckamesensor(Stuckclosed)
10
Thegasisignitedbutthe
amegoesout
Ifanormalignitiontakesplaceandafterashortwhiletheamegoesout,checkforthe
following:
• Radiantsensorcontactsopeningprematurely.
• WeakgasvalvecoilmayopenwhenstressedbyhigherTemps.
• WeakHi-Limit
• Poorventing
• Baddrumseals
11
Improperdryingclothes
wrinkledRoughtexturelong
dry time
• Thelintlterisnotclean.
• Anyrestrictionintheexhaust.
• Theoutsideexhausthooddamperdoorstuckclosed.
• Istheexhausttoolong,toomanyelbows,exductworkinstalled.
• Poorintakeairavailableforthedryer.
• Incorrecttumblerspeed.Tumblerbeltslipping.
• Blowerimpellerbound;checkforforeignmaterialinblowerarea.
• Customeroverloadingdryer.
• Checkclothinglabelsforfabriccontentandcycleselected.
• Clothestoowetduetoinsufcientspinoutbywasher.
12 Noisyand/OrVibration
• “Thumping”Checkforloosetumblerbafe,reartumblerroller(s)wornormisaligned,out-of-
roundtumblerorhighweldseamontumbler.
• “Ticking”Checkforloosewireharnessorobjectcaughtinblowerwheelarea.
• ScrapingCheckforfrontorrearbulkheadfeltsealoutofpositionorworntumblerfront
bearings.
• “Roaring”Checkforblowerwheelrubbingonblowerhousingorbadmotorbearings.
• Poppingorsquealingsound.Checkforastickyorfrayedbelt.