Error code reference

Samsung Air Conditioner Error Code E263

Fixed compressor 2 discharge temperature sensor breakaway - difference between digital compressor discharge temp and fixed compressor 2 discharge temp exceeds 40°C.

SourceSamsung Air Conditioner - Service Manual: Troubleshooting (AVMWH020CA0XAG)p. 6-76

Diagnostic procedure

The full E263 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
1
First diagnostic step
Check if the corresponding compressor discharge temperature sensor is separated; reassemble and adjust.

SourceSamsung Air Conditioner - Service Manual: Troubleshooting (AVMWH020CA0XAG)p. 6-76

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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