Error code reference

Samsung Dishwasher Error Code 4E (High Temp Water Supply)

High temperature water supply error-when 80°C or above is detected during water supply.

SourceSamsung Dishwasher DMT300 Series - Training ManualError Codes table

Diagnostic procedure

The full 4E (High Temp Water Supply) 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
Check water supply temperature and thermistor.

SourceSamsung Dishwasher DMT300 Series - Training ManualError Codes table

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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Where this code is documented

1 manual in the MyPros+ library documents this code for Samsung dishwasher.

Models covered by the manuals that document this code

75,000+ service documents · 20,000+ error codes · 100+ brands

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