Hisense Air Conditioners(AC) display error codes to help identify specific problems. These codes are diagnostic indicators that mean internal sensor failures or electrical issues. Some times you can fix it your own. But in most of the case, you need an expert technician to fix the error code.
The List of Error Codes:
Error Codes may vary based on models. Among them, here is a list of commonly reported Hisense air conditioner error codes in general.
| Error Code | Meaning/Description | Problem Type |
| E1 | Issue with outdoor coil temperature sensor | Sensor Fault |
| E2 | Issue with compressor temperature sensor/ Evaporator pipe temperature too high | Sensor Fault |
| E3 | Issue with voltage transformer | Electrical Fault |
| E5 | IPM module protection | Electrical/Module Fault |
| E7 | Communication trouble | Communication Fault |
| E33 | Issue with room temperature sensor | Sensor Fault |
| E34 | Issue with indoor coil temperature sensor | Sensor Fault |
| E37 | Water over brimmed the pump | Drainage Fault |
| E39 | Indoor fan motor operation abnormal | Fan/Mechanical Fault |
| F1 | Issue with temperature sensor of remote control | Sensor/Remote Fault |
Please Note: The list above includes some common codes based on publicly available information. For the most accurate and complete list for your specific model, you should always refer to your unit’s official owner’s manual.
What To Do When You See an Error Code?
If you see an error code, don’t panic. Some of the error codes you can fix easily. What to do?
- Note the Code and Power Off: Write down the exact error code displayed. Then, safely power off the unit and unplug it for 30 seconds before plugging it back in. A simple reset can sometimes clear transient errors.
- Consult Your Manual: Check the troubleshooting section of your user manual. It provides the definitive list of codes and may have model-specific instructions.
- Check for Simple Issues: Before calling for service, ensure there are no simple problems like a tripped household circuit breaker or an extremely dirty air filter, as these can affect performance.
- Contact a Professional Technician: If the error code reappears after a reset, the issue is internal. Do not attempt to repair electrical components, sensors, or refrigerant lines yourself. Contact a qualified HVAC technician or Hisense customer service for diagnosis and safe repair.
General Troubleshooting (For Issues Without Error Codes)
Some common problems may not trigger a specific error code. Here are quick checks you can perform:
- Unit Not Cooling Well: Ensure it’s set to “Cool” mode, check and clean the air filter, and make sure air vents are not blocked.
- Remote Control Not Working: Try replacing the batteries and ensure you are pointing it directly at the unit’s signal receiver with no obstructions .
- Unit Not Draining or Leaking: The drain line or drain pan may be clogged. Check for blockages if you feel comfortable doing so .
Conclusion
Repair City’s skilled technicians are always ready to assist you in Bangladesh. If you have a problem, just call us. We will be there in a short time to fix your problem in Dhaka, Bangladesh.

