Error code reference

Samsung Heat Pump Error Code t8

Error of low pressure sensor (OPEN/SHORT) - SHORT error when below 0.4V, OPEN error when over 4.7V; detected when compressor is on.

SourceSamsung Heat Pump - Service Manual: Troubleshooting Guide (AVMCH072CA0)p. 181, 197

Samsung codes Samsung heat pump codes

Diagnostic procedure

The full t8 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 wiring and connector; skip detection during oil recovery, safety start, and defrost operations.

SourceSamsung Heat Pump - Troubleshooting Guide: Outdoor Unit Error Codes (RMAH140GAM0SER)p. 181, 197

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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 t8 procedure

Where this code is documented

Models covered by the manuals that document this code

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