Error code reference

Samsung Heat Pump Error Code E125

Forbid operation due to low pressure - low pressure sensor value below 3.1 kg/cm2G during cooling or below 2.6 kg/cm2G during heating for 3 consecutive seconds before pump down start.

SourceSamsung Heat Pump - Service Manual: Troubleshooting (AVXWHH071EA)p. 11-9, 11-12

Samsung codes Samsung heat pump codes

Diagnostic procedure

The full E125 procedure

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MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Measure pressure using manifold gauge when system is stopped; compare with low pressure sensor reading via view mode or S-net.

SourceSamsung Heat Pump - Service Manual: Troubleshooting (AVXWHH071EA)p. 11-9, 11-12

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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

2 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 E125 procedure

Where this code is documented

Models covered by the manuals that document this code

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