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Samsung dishwasher error codes

Samsung washers and dishwashers show two-character codes such as 4C or 5C. Newer models use C at the end where older ones used E, so 4C and 4E mean the same thing.

CodeWhat it means
5Calso 5EDrain error
4Calso 4EWater supply error
LCalso LELeak detected

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Dishwasher codes from other brands