Samsung WA48H7400AP - Page 26

24 _ Troubleshooting
Error Type Error Mode Causes Corrective Actions Description of Photo
Water Supply Error
►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 Error
►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 Error
►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.
-
Incorrect wire connections between the sub and main PBAs.