Actron Error Codes
Every Actron error code we have catalogued, with what it means on site — 44 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.
Common Actron codes
| Code | What it means |
|---|---|
| E1 | Auxiliary sensor malfunction |
| E2 | Coil out sensor malfunction |
| E3 | Room sensor fault |
| E4 | Indoor coil sensor malfunction |
| E5 | Indoor/outdoor communication failure |
| E6 | Discharge temp sensor fault |
| E7 | Outdoor coil sensor fault |
| E8 | Outdoor discharge sensor fault |
| E9 | 3-phase pressure fault |
| E11 | Probe 1 config error |
| E12 | Temp exceeding normal limits |
| E13 | Probe 3 config error |
| E14 | Probe 4 config error |
| E15 | Discharge temp out of range / comp high pressure |
| E16 | OD coil sensor malfunction |
| E17 | OD coil sensor malfunction |
| E18 | Outdoor coil sensor fault |
| E19 | Probe 9 config error |
| E20 | Air temp sensor malfunction |
| E21 | Multi-Input 1 out of range |
| E22 | Multi-Input 2 out of range |
| E23 | Outdoor fan 1 issue / motor fault |
| E24 | Outdoor fan 2 issue / motor fault |
| E25 | Indoor fan not working |
| E26 | Return air temp sensor fault |
| E27 | Supply air temp sensor malfunction |
| E28 | Fan under extreme load |
| E29 | Compressor 1 overloading |
| E30 | Compressor 2 overloading |
| E31 | Low pressure compressor 1 |
| E32 | Low pressure compressor 2 |
| E33 | Low pressure compressor 3 |
| E34 | High pressure compressor 1 |
| E35 | High pressure compressor 2 |
| E36 | High pressure compressor 3 |
| E37 | Compressor 1 low-pressure lockout |
| E38 | Compressor 2 low-pressure lockout |
| E39 | Compressor 3 low-pressure lockout |
| E40 | Compressor 1 high-pressure lockout |
| E41 | Compressor 2 high-pressure lockout |
| E42 | Compressor 3 high-pressure lockout |
| E43 | Discharge sensor 1 malfunction |
| E44 | Discharge sensor 2 malfunction |
| E45 | Discharge sensor 3 malfunction |
Official Actron source / manual ↗
Frequently asked
What does Actron error code E1 mean?
Actron error code E1 means: Auxiliary sensor malfunction. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Actron error code E2 mean?
Actron error code E2 means: Coil out sensor malfunction. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Actron error code E3 mean?
Actron error code E3 means: Room sensor fault. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Actron error code E4 mean?
Actron error code E4 means: Indoor coil sensor malfunction. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Actron error code E5 mean?
Actron error code E5 means: Indoor/outdoor communication failure. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Actron error code E6 mean?
Actron error code E6 means: Discharge temp sensor fault. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Actron error code E7 mean?
Actron error code E7 means: Outdoor coil sensor fault. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Actron error code E8 mean?
Actron error code E8 means: Outdoor discharge sensor fault. In R-Pro you also get the likely causes and the inspection steps — offline.
Look up any error code — offline — in R-Pro.
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