Error code reference

Samsung Heat Pump Error Code E151

Instant power-off error - temporary compressor stop due to instantaneous power interruption (compressor protection action, not a true error).

SourceSamsung Heat Pump - Service Manual: Troubleshooting Guide (AVXCMH036EA)p. 12-45

Samsung codes Samsung heat pump codes

Diagnostic procedure

The full E151 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 EEV wire connection; check EEV coil insertion; press reset key (K3).

SourceSamsung Heat Pump - Service Manual: Troubleshooting Guide (AVMCH072CA0)p. 218

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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

5 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 E151 procedure

Where this code is documented

Models covered by the manuals that document this code

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