Samsung WA48H7400AW/A2 - Page 26

24 _ Troubleshooting
Check Type Check Mode Causes Corrective Actions Description of Photo
Water Supply Check
►4C
This may occur when the water supply valve is defective.
• Ifthewatersupplyvalveisbroken,replace
the valve.
• Checkifthewatersupplyisblockeddue
toanaliensubstanceinthevalveorcheck if the water is supplied to the machine. If aproblemisfound,taketheappropriate countermeasure.
• Checkifthewatersupplyisblockeddueto
the water being frozen.
• IfthePBARelaymalfunctions,replacethe
PBA.
1. Measure the resistance of the
water supply valve.
- Resistance:0.9KΩto1.1KΩ
between the terminals of the Water Supply Valve.
2. Checkwhetherthereisforeign
material in the Water supply valvelter.
This may occur when the main PCB is defective. This may occur due to frozen water.
DrainCheck ►5C
This may occur when the drain pump is defective.
• Checkifthereisanyaliensubstanceinside
the draining pump motor.
• Checkthenaturaldraininthesamemanner. • Checkifthereareanyincorrectconnections
orbrokenwires.
• Ifthemachinemalfunctionsintermittently
when the wash tub water temperature is high,replacethepump.
• Ifthemotorstopsduetothewaterbeing
frozeninwinter,removethefrozenwater referring to the relevant repair procedures.
Checkthedrainpumpresistance. (Resistance:13.5~16.5Ω)
This may occur due to frozen water. Checkifthereisanyalien substance inside the draining pump. This may occur when the main PCB is defective.
Communication Check
►AC
The signals between the sub andmainPBAsarenot sensed.
• 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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Incorrect wire connections between the sub and main PBAs.