Error code reference

Samsung Air Conditioner Error Code 18

BLDC compressor starting/rotation error.

SourceSamsung SH09BPH/SH12BPH - Service Manual: Room Air Conditionerp. 18, 25

Samsung codes Samsung air conditioner codes

Diagnostic procedure

The full 18 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 compressor wire and TAB terminal connections; check service valve open; check EEV motor attachment and connector; replace compressor if locked.

SourceSamsung SH09BPH/SH12BPH - Service Manual: Room Air Conditionerp. 18, 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

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

Models covered by the manuals that document this code

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The full 18 procedure

Where this code is documented

Models covered by the manuals that document this code

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