Error code reference

Samsung Heat Pump Error Code E554

Compressor sump temperature (oil temperature) sensor breakaway - sensor detached from digital or fixed 1 compressor.

SourceSamsung Heat Pump - Service Manual: Troubleshooting Guide (AVXCMH036EA)p. 12-25

Diagnostic procedure

The full E554 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 whether relevant compressor sensor is broken away by error code; reassemble and adjust.

SourceSamsung Heat Pump - Service Manual: Troubleshooting Guide (AVXCMH036EA)p. 12-25

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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 E554 procedure

Where this code is documented

Models covered by the manuals that document this code

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