Error code reference

Samsung Air Conditioner Error Code E422

SUMP TEMP FIXED 2 sensor OPEN/SHORT error. Detected when outdoor temp over -10°C. Error level: Over 4.95V (-30°C), below 0.5V (151°C).

SourceSamsung AVMKH032CA1 - Service Manual: Troubleshooting & Diagnosticsp. 220

Samsung codes Samsung air conditioner codes

Diagnostic procedure

The full E422 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 sensor connector; measure resistance across both terminals.

SourceSamsung AVMKH032CA1 - Service Manual: Troubleshooting & Diagnosticsp. 220

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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

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The full E422 procedure

Where this code is documented

Models covered by the manuals that document this code

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