Error code reference

Samsung Washer Error Code HE

Heater overheat error: wash water temperature rises 4°C or more in 5-second measurement intervals during heater operation, or water temperature sensor detects 100°C or above continuously for 6 seconds or more (fire risk from heater operating without water).

SourceSamsung Washer - Full Service Manual: SEW-5HW125A / SEW-5HW127Ap. 21

Diagnostic procedure

The full HE procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Main relay immediately opens, power auto-off after 5 seconds

SourceSamsung Washer - Full Service Manual: SEW-5HW125A / SEW-5HW127Ap. 21

More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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