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English 59
Troubleshooting
Information codes
If the dishwasher fails to operate, you may see an information code on the display. Check
the table below and try the suggestions.
Code Action
LC
Leakage check
• Close the water supply valve. Go to your home’s circuit breaker panel,
and set the dishwasher’s circuit breaker switch to off. Then, contact the
installer to repair. If the issue continues, contact a local Samsung service
centre.
4C
Water supply check
• Check if the water supply valve is closed, if the water supply is
suspended, or if the water inlet valve or line is frozen or clogged by
foreign particles. If the issue continues, contact a local Samsung service
centre.
AC
PCB communication check
• Abnormal communication between the main PCB and the sub PCB.
• If the problem continues, contact an authorised Samsung service center.
HC
High temperature heating check
• Functional check. With the dishwasher empty, add detergent, and then
run a cycle. If the issue continues, go to your home’s circuit breaker
panel, and set the dishwasher’s circuit breaker switch to off. Then,
contact a Samsung service centre.
tC
Thermistor check
• Temperature sensor is broken (short or open circuit). If the problem
continues, contact an authorised Samsung service center.
PC
Distribution motor check
• Abnormal working with distribution motor assembly, or main PCB. If the
issue continues, contact a local Samsung service center.
If any information code keeps appearing on the screen, contact a local Samsung service
centre.
DW4000RM(A5)_IB_DD81-02709D-05_EN.indd 59 2021-04-06 3:52:33
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