Samsung WD8 K64 Series - Page 42

40 _ Troubleshooting
Check Type Check Mode Causes Corrective Actions Description of Photo
WaterSupply Check
4C
• Watersupplyvaluefault • MainPCBfault • Freezinginthewinter
season
• Ifthewatersupplyvalvehasawire
disconnected,replaceit.
• Checkwhetherthewatersupplyvalveis
cloggedwithforeignmaterialandwhether waterissuppliedcontinually.
• Checkwhethernowaterissuppliedbecause
offreezinginthewinterseason.
• IfthePBArelayoperatesabnormally,replace
thePBA.
1. Checktheresistanceforthewater
supplyvalve.
- Resistance:0.9~1.1kΩ betweentheterminalsofthewater
supplyvalve.
2. Checkwhetherthereisforeign
materialinthewatersupplyvalve lter.
3. Ifthewatersupplyvalvelteris
clogged,cleanlter.
DrainCheck 5C
• Freezinginthewinter
season
• Foreignmaterialsinthe
drainpump
• Poorphysicalconnection • Drainpumpfault • MainPCBfault
• Ifthedrainpumprevolutionsarerestrained
duetofreezinginthewinterseason,check themethodtoremovethefreezingand removeasdirected.
• Checkwhethertherevolutionsofthedrain
pumpmotorarerestrainedbyforeign material,andremoveasdirected.
• CheckthewireconnectorsonMainPCBand
DrainPumpASSY.Theconnectororwire mayhavepoorphysicalconnection.
• Checkthedrainpumpresistance.
Checkthedrainpumpresistance. -Drain:
Resistance:13.5Ω~16.5Ω
-Bubble:
Resistance:18.75Ω~22.75Ω
Communication Check
AC
• Thesignalsbetweenthe
subandmainPBAsare notsensed.
• Incorrectwire
connectionsbetweenthe subandmainPBAs.
• Checkthewireconnectionsandterminal
contactsbetweenthesubandmainPBAs.
• Checkfordisconnectedwires. • CheckwhetherthesubPBAisshort-circuited
becauseofmoisture.
• IfthemainPBA’scommunicationcircuitis
faulty,replaceit.
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WD6500K_7-8-9-11kg_1400rpm-SM.indb 40 2018/11/9 9:53:32