Error code reference

Samsung Air Conditioner Error Code G9

No heating operation - heating operation forbidden when outdoor temperature is over 30°C or charging refrigerant in heating when outdoor unit is over 15°C.

SourceSamsung AVMKH032CA1 - Service Manual: Troubleshooting & Diagnosticsp. 182, 217

Samsung codes Samsung air conditioner codes

Diagnostic procedure

The full G9 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

Verify outdoor temperature; this is a protection specification, not a product error.

SourceSamsung AVMKH032CA1 - Service Manual: Troubleshooting & Diagnosticsp. 182, 217

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More steps, wiring diagram references, and verified part numbers

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Where this code is documented

2 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 G9 procedure

Where this code is documented

Models covered by the manuals that document this code

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