Samsung WF42H5200AW - Steam Wash and ATC Control

24 _ Troubleshooting
Error Type Error Mode Causes Corrective Actions Description of Photo
WaterSupply Error
4E
• 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Error 5E
• 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 Error
AE
• 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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