Aerotek Error Codes
Every Aerotek error code we have catalogued, with what it means on site — 32 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.
32 codes
| Code | What it means |
|---|---|
| E0 | Unable to determine water flow rate |
| E1 | Phase connection issue |
| E2 | Indoor/outdoor unable to communicate |
| E3 | Outdoor cooling liquid temp sensor malfunction |
| E4 | Water temp sensor not working |
| E5 | Capacitor A tube temp sensor issue |
| E6 | Capacitor B tube temp sensor malfunction |
| E7 | Outdoor temp sensor failure |
| E8 | Discharge line temp sensor defective |
| E9 | Water flow detection problem at system A |
| EA | Decrease in additional blocks recorded |
| EB | Temp sensor malfunction / HX frozen |
| EU | Unable to receive output from modular unit |
| ED | Modular unit–drive controller comm interrupted |
| Ed | Electrical supply protection mode |
| EE | Computer–drive controller comm not working |
| EF | Water inlet temp sensor malfunction |
| F1 | Permanent memory corrupt / EEPROM damaged |
| F2 | Wire controller connection issue |
| P0 | System A injection line overheating |
| P1 | System A pressure decrease |
| P2 | System B injection line overheating |
| P3 | System B pressure drastically decreased |
| P4 | System A high voltage / overcurrent protection |
| P5 | System B overcurrent / protection |
| P6 | System A condenser pressure increased |
| P7 | System B capacitor pressure increase |
| P8 | Discharge line temp sensor malfunction |
| P9 | Compressor malfunction / water temp diff protection |
| Pb | Frost detected protection |
| PE | Shell-and-tube HX supercooled |
| RA | Protection against supercooling during startup |
Official Aerotek source / manual ↗
Look up any error code — offline — in R-Pro.
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