Error code reference

Samsung Air Conditioner Error Code E557

Indoor unit EEV close error (2nd detection) - persistent electronic expansion valve close failure.

SourceSamsung Air Conditioner - Service Manual: Troubleshooting (AVXC4H056EB)p. 12-21, 12-53

Samsung codes Samsung air conditioner codes

Diagnostic procedure

The full E557 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 the EEV wire is connected to the indoor unit PCB correctly.

SourceSamsung Air Conditioner - Service Manual: Troubleshooting (AVXC4H056EB)p. 12-21, 12-53

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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

4 manuals in the MyPros+ library document this code for Samsung air conditioner.

Models covered by the manuals that document this code

More models are covered than are listed here.

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The full E557 procedure

Where this code is documented

Models covered by the manuals that document this code

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