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Samsung Washing Machine Error Codes

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

Code	Meaning	Severity	DIY	Est. Cost
4C	Water supply not detected	⚠ Medium Severity	easy	$0–$60
UE	Unbalanced load detected	✓ Low Severity	easy	$0–$70
OE	Drain failure — water not draining	⚠ High Severity	moderate	$0–$90
LE	Motor locked — drum cannot rotate	⚠ High Severity	hard	$0–$300
DE	Door not properly closed or door lock failure	⚠ Medium Severity	moderate	$30–$100
HE	Water heater error — water not heating to target temperature	⚠ High Severity	hard	$15–$100
SUD	Excessive suds detected	✓ Low Severity	easy	$0–$10
tE	Temperature sensor (thermistor) fault	⚠ Medium Severity	moderate	$15–$35
bE	Button error — key stuck or shorted	✓ Low Severity	easy	$0–$150
CE	Over-current motor protection — motor drawing excessive current	⚠ High Severity	hard	$0–$300
PE	Water pressure sensor (pressure switch) failure	⚠ Medium Severity	moderate	$20–$60
3E	Motor drive error — motor cannot reach commanded speed	⚠ High Severity	hard	$15–$250
SE	Motor tachometer / hall sensor error	⚠ High Severity	moderate	$15–$30
9E1	Low voltage detected — power supply problem	⚠ High Severity	easy	$0–$200
nF	No fill — water supply insufficient at start of cycle	⚠ Medium Severity	easy	$0–$70
AP	Aqua Protection activated — flood protection triggered	⚠ High Severity	moderate	$0–$90
FL	Door lock failure — cannot complete lock engagement	⚠ Medium Severity	moderate	$40–$90
bE2	Specific button on control panel shorted	✓ Low Severity	easy	$0–$150
E7	Heater circuit error — TRIAC failure	⚠ High Severity	hard	$40–$300

⚠️ Serious Errors — Act Quickly

Drain failure — water not draining

The Samsung washer cannot drain water within the expected time. This is a high-p…

Motor locked — drum cannot rotate

The washer motor has stalled or is drawing excessive current, preventing the dru…

Water heater error — water not heating to target temperature

The washer is not able to heat the wash water to the programmed temperature with…

Over-current motor protection — motor drawing excessive current

The motor control board has detected that the motor is drawing more current than…

Motor drive error — motor cannot reach commanded speed

The motor is not responding correctly to drive commands from the motor control b…

Motor tachometer / hall sensor error

The hall sensor (tachometer) that measures motor rotation speed is not providing…

Low voltage detected — power supply problem

The washer is detecting abnormal input voltage. 9E1 typically means voltage is t…

Aqua Protection activated — flood protection triggered

Samsung's Aqua Protection anti-flood system has detected water in the base of th…

Heater circuit error — TRIAC failure

The TRIAC (solid-state relay) that switches power to the heating element has fai…