Why Mitsubishi Aircon Light Blinking? how do fix it?

Mitsubishi Aircon Light Blinking

Mitsubishi aircon lights blinking indicates the presence of an error or issue within the system. These blinking lights serve as error codes that can help you identify the problem. Here are some common reasons for Mitsubishi aircon blinking lights and how to potentially fix them: 

Mitsubishi aircon light blinking

1. Communication Errors: 

Blinking Pattern: The indoor unit light blinks several times, followed by a pause, and then repeats. 

Possible Solution: Check the communication cables between the indoor and outdoor units. Ensure they are properly connected and not damaged. If the issue persists, it might be a faulty PCB (printed circuit board) that requires professional attention.

2. Temperature Sensor Issues: 

Blinking Pattern: Specific temperature-related error code on the display. Possible Solution: Clean the temperature sensors on both the indoor and outdoor units. If cleaning doesn’t work, contact aircon service technician to calibrate or replace the sensors.

3. Airflow Problems: 

Blinking Pattern: Light blinks in conjunction with a fan or airflow symbol. 

Possible Solution: Check and clean the air filters, indoor and outdoor unit coils, and vents. Ensure there are no obstructions blocking the airflow. Restricted airflow can cause the unit to overheat and trigger error codes.

4. Refrigerant Issues: 

Blinking Pattern: Refrigerant-related error code. 

Possible Solution: Low refrigerant levels or leaks require professional attention. Only certified technicians should handle refrigerant-related problems due to safety concerns.

5. Electrical Faults: 

Blinking Pattern: Inconsistent blinking or unusual patterns. 

Possible Solution: Inspect the power supply, wiring, and connections for any visible damage. If you’re not experienced with electrical systems, it’s best to call a professional electrician or HVAC technician.

6. Power Reset: 

Blinking Pattern: Blinking lights after a power outage or sudden interruption. 

Possible Solution: Try a power reset by turning off the aircon from the main power source, waiting for a few minutes, and then turning it back on. This might resolve temporary glitches.

7. Other Error Codes: 

Blinking Pattern: Refer to the user manual for specific error code meanings. 

Possible Solution: Always consult your air conditioner’s user manual to understand the exact meaning of the blinking lights and the recommended actions to take.

Refer Mitsubishi Aircon Error Code – How to fix it?

When to Seek Professional Help:

If the blinking lights persist after attempting basic troubleshooting, or if you are uncertain about the cause of the issue, it’s advisable to contact a professional HVAC technician. Attempting to fix complex issues without proper expertise can lead to further damage and safety hazards.

In any case, remember that safety is a priority. If you’re unsure about performing any troubleshooting steps, it’s better to consult an Aircool Aircon professional technician. They have the necessary knowledge and tools to diagnose and fix the problem correctly, ensuring your Mitsubishi aircon operates efficiently and reliably.

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