Error code reference

Samsung Heat Pump Error Code G7

Outdoor unit freezing detection (indoor unit heat exchanger below -4°C for over 40 seconds in cooling).

SourceSamsung Heat Pump - Service Manual: Troubleshooting Guide (AVMBH020CA0XAG)p. 181

Diagnostic procedure

The full G7 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 if room temperature sensor connector is detached from PCB; measure resistance across terminals.

SourceSamsung Heat Pump - Service Manual: Troubleshooting Guide (AVMWH032CA0G)p. 182, 214

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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

9 manuals in the MyPros+ library document this code for Samsung heat pump.

Models covered by the manuals that document this code

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The full G7 procedure

Where this code is documented

Models covered by the manuals that document this code

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