Refrigeration units play a crucial role in maintaining the quality and safety of stored goods. However, like any other electrical appliance, they can encounter issues. Understanding error codes can help diagnose and troubleshoot problems quickly, reducing downtime and maintenance costs. Below is a comprehensive list of POLAR refrigeration error codes and their meanings to assist you in identifying potential issues and taking the necessary steps for resolution.
POLAR Refrigeration Error Code Lookup
| Error Code | Description |
|---|---|
| ER1 | Evaporator inlet probe is faulty |
| ER2 | Evaporator return gas probe is faulty |
| ER3 | Defrost probe (evaporator temperature probe) is faulty |
| ER4 | Door not closed properly or door switch is faulty |
| ER5 | Condenser probe is faulty |
| SO | Cabinet temperature probe is open-circuited |
| SC | Cabinet temperature probe is short-circuited |
| HI | Condenser temperature exceeding 60°C |
| EE | Data or memory failure |
| rPF | Thermostat probe failure |
| EPF | Evaporator probe failure |
| i1P | Insert probe 1 failure |
| i2P | Insert probe 2 failure |
| i3P | Insert probe 3 failure |
| rtC | Clock data lost |
| rtF | Clock failure |
| HA | Maximum temperature alarm |
| LA | Minimum temperature alarm |
| FF | Fast freezing interrupted by short power failure |
| PFA | Fast freezing interrupted by long power failure |
| OCF | Maximum cycle time has been exceeded |
| EA | External alarm |
| CA | Serious external alarm |
| dA | Door open alarm |
| HtA | Inner temperature exceeds the set maximum temperature |
| LtA | Inner temperature exceeds the set minimum temperature |
| PF1 | Short circuit or interruption of the thermostat probe input line |
| PF2 | Short circuit or interruption of the evaporator probe input line |
| HLA | Inner temperature greater than 90°C |
| LLA | Inner temperature lower than -45°C |
| E1 | Faulty air sensor |
| E2 | Faulty defrost sensor |
| E13 | Communication error (cable between the digital readout and the control relay is faulty) |
| VH | Voltage high |
| VL | Voltage low |
Being aware of these error codes can help in the timely identification and resolution of refrigeration system malfunctions. Regular maintenance and prompt attention to these warnings can extend the lifespan of your unit and ensure optimal performance. If an issue persists despite troubleshooting, consulting a professional technician is always recommended. Stay proactive in maintaining your refrigeration system to avoid unexpected breakdowns!
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Written by
Ali Elm
Ali is the Head of Operations at Be Cool Refrigeration with over a decade of hands-on experience in HVAC and commercial refrigeration. He oversees every installation, repair, and maintenance project, making sure the work meets the highest standards. Ali holds full F-Gas certification and has worked across residential, commercial, and industrial refrigeration systems throughout London and the South East. When he is not on site, he writes these guides to help business owners and homeowners understand their cooling systems better.