Here’s a general guide with possible issues and troubleshooting steps:
| Error Code | Description | Possible Causes | Troubleshooting Steps |
|---|---|---|---|
| E1 | Room Temperature Sensor Error | Faulty room temperature sensor. | Inspect and replace the room temperature sensor if needed. |
| E2 | Evaporator Coil Sensor Error | Faulty evaporator coil temperature sensor. | Inspect and replace the evaporator coil temperature sensor if needed. |
| E3 | Condenser Coil Sensor Error | Faulty condenser coil temperature sensor. | Inspect and replace the condenser coil temperature sensor if needed. |
| E4 | Indoor Fan Motor Error | Malfunction of the indoor fan motor. | Inspect and replace the indoor fan motor if needed. |
| E5 | Outdoor Fan Motor Error | Malfunction of the outdoor fan motor. | Inspect and replace the outdoor fan motor if needed. |
| E6 | Communication Error (Indoor to Outdoor) | Communication failure between indoor and outdoor units. | Check for loose or damaged wiring between units. |
| E7 | Communication Error (Indoor to Remote) | Communication failure between indoor unit and remote control. | Check for loose or damaged wiring between indoor unit and remote. |
| E8 | Refrigerant Leakage Error | Refrigerant leakage detected. | Inspect for leaks and repair the refrigerant circuit. |
| E9 | High Discharge Temperature Error | High discharge temperature of the compressor. | Check for issues affecting the compressor and refrigerant circulation. |
| E10 | Compressor Sensor Error | Faulty sensor in the compressor. | Inspect and replace the compressor sensor if needed. |
| E11 | EEPROM Error | Communication error with the memory chip. | Consult a professional technician for EEPROM chip replacement. |
| E12 | Current Sensor Error | Faulty current sensor. | Inspect and replace the current sensor if needed. |
| E13 | Zero-Cross Signal Error | Error in the zero-cross signal. | Check for wiring issues and replace the control board if necessary. |
| E14 | Overload Error | Overload in the compressor. | Check for electrical issues, and consult a professional technician. |
| E15 | Voltage Error | Voltage outside the normal range. | Check the power supply and voltage stability. |
| E16 | IGBT High-Temperature Error | Excessive temperature in the IGBT module. | Inspect for overheating issues and improve ventilation. |
| E17 | Pressure Sensor Error | Malfunction of the pressure sensor. | Inspect and replace the pressure sensor if needed. |
| E18 | EEPROM Error (Remote) | Communication error with the memory chip in the remote control. | Replace the remote control or consult a professional technician. |
Remember, this is a general guide, and actual error codes and troubleshooting steps may vary. Always refer to the specific model’s user manual or contact Carrier’s customer support for accurate information based on your air conditioner model. If unsure or uncomfortable with troubleshooting, seek professional assistance.