Blue Star Error Codes
Every Blue Star error code we have catalogued, with what it means on site — 8 codes in total. In R-Pro, tap any code to get the meaning, likely causes and inspection steps, even with no signal in the plant room.
8 codes
| Code | What it means |
|---|---|
| LP | Low refrigerant pressure or blockage |
| HP | High pressure (restricted airflow / overcharge) |
| SP | Faulty or disconnected temperature sensor |
| E1 | Indoor–outdoor communication failure |
| E4 | Compressor overload |
| F3 | Indoor or outdoor fan motor malfunction |
| P6 | Inverter module problem |
| dF | Defrost mode (normal) |
Official Blue Star source / manual ↗
Look up any error code — offline — in R-Pro.
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