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Samsung Dishwasher Error Codes

17 error codes with causes and step-by-step fixes

Your Samsung dishwasher uses 17 distinct error codes to flag faults before they turn into a full breakdown. The most common cluster around sensor (3), water supply (3), drainage (2). Of these, about 17 can usually be cleared at home without a technician, while 7 point to more serious faults that may warrant a professional. Typical repair costs on this appliance run from $0 for simple DIY fixes up to $450 for professional component replacement.

Find your code in the table below for its exact meaning, the most likely causes ranked by how often they're the culprit, a step-by-step fix, the parts you may need, and a clear call on when it's worth phoning a repair pro.

🔍 How to Enter Diagnostic Mode 🔄 How to Reset & Clear Codes

Code	Meaning	Severity	DIY	Est. Cost
LC	Leak sensor activated — water detected at base of dishwasher	⚠ High Severity	moderate	$0–$100
5C	Drain failure — water not draining from dishwasher	⚠ High Severity	moderate	$0–$100
3C	Wash motor error — circulation pump failure	⚠ High Severity	hard	$100–$250
HE	Heater error — water not heating	⚠ High Severity	moderate	$15–$90
tE	Temperature sensor failure — NTC thermistor fault	⚠ Medium Severity	moderate	$15–$35
7E	Water wall reflector error — water wall sensor blocked	⚠ Medium Severity	easy	$0–$160
1E	Water inlet sensor failure	⚠ Medium Severity	moderate	$25–$80
bE2	Button error — control panel button shorted	✓ Low Severity	easy	$0–$160
9E	Low water level error — dishwasher not filling enough	⚠ Medium Severity	moderate	$0–$80
bE	Button error — a control-panel key is stuck or shorted	✓ Low Severity	easy	$0–$160
AP	Access Point mode — Wi-Fi pairing, not a fault	✓ Low Severity	easy	$0–$0
nE	Noise sensor error — abnormal sound/vibration signal from the wash system	⚠ Medium Severity	moderate	$0–$40
PC	Pump/zone wash fault — distribution motor or pump circuit error	⚠ High Severity	hard	$0–$80
C5	Drain-related sensor fault — drainage not confirmed by the water level sensor	⚠ Medium Severity	moderate	$0–$70
4C	Water supply error — dishwasher not filling	⚠ Medium Severity	easy	$0–$60
HC	High temperature heater error — water overheating detected	⚠ High Severity	moderate	$15–$180
OC	Over-level water error — too much water in the tub	⚠ High Severity	moderate	$0–$60