Error code reference

Samsung Heat Pump Error Code E251

Digital compressor discharge temperature sensor breakaway - CT sensor value over 5A and discharge temp below high pressure saturation temp for over 30 minutes.

SourceSamsung Heat Pump - Service Manual: Troubleshooting (RVXVHT140GC)p. 12-26

Samsung codes Samsung heat pump codes

Diagnostic procedure

The full E251 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

First diagnostic step

Check if emission temperature sensor and holder are attached correctly.

SourceSamsung Heat Pump - Service Manual: Troubleshooting (RVXVHT140GC)p. 12-26

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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

3 manuals in the MyPros+ library document this code for Samsung heat pump.

Models covered by the manuals that document this code

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The full E251 procedure

Where this code is documented

Models covered by the manuals that document this code

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