Error code reference

Samsung Air Conditioner Error Code E448

Lock error on Fan1 of outdoor unit.

SourceSamsung Air Conditioner - Service Manual: Indoor Unit (AM Series)p. 4-92

Samsung codes Samsung air conditioner codes

Diagnostic procedure

The full E448 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 for foreign objects on fan rotary wing; verify fan rotates freely.

SourceSamsung Air Conditioner - Service Manual: Indoor Unit (AM Series)p. 4-92

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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 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 E448 procedure

Where this code is documented

Models covered by the manuals that document this code

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