Troubleshoot error code “EC” in Giatsu air-conditioning

How to eliminate EC error in GIATSU air conditioning?

  • Error: EC
  • Description: Indicates the presence of a refrigerant leakage in Giatsu air conditioning units.
  • Cause:
    • Defective T2 sensor.
    • Interior PCB failure.
    • System faults such as leaks or blockages.
  • Solution:
    1. Turn off the unit and wait for 2 minutes before restarting.
    2. Check if the unit is blowing cold air from the indoor air outlet, and inspect the T2 sensor. If the sensor is not faulty, replace the interior printed circuit board (PCB). If no issues are found in this step, proceed to step three.
    3. Inspect the unit for leaks. If a leak is found, repair it and recharge the refrigerant. If no leak is detected, proceed to step four.
    4. Check the unit for blockages and obstructions, and remove them if present.

Step-by-Step Solution to Resolve EC Error in Giatsu Units with Refrigerant Leakage

In this article, we will address the EC error that can occur in Giatsu air conditioning units, which indicates the presence of refrigerant leakage. Below, we provide a step-by-step guide to recognize and resolve this problem.

Step 1: Turn off and restart the unit

If the EC error is detected in the Giatsu unit, the first step is to turn off the unit and wait for at least 2 minutes before restarting it. This step can help reset the system and eliminate any temporary errors.

Step 2: Verify the T2 sensor and cold air emission

After restarting the unit, observe if the unit is blowing cold air from the indoor air outlet. If the unit is providing cold air properly, it is necessary to inspect the T2 sensor.

The T2 sensor is responsible for measuring the temperature of the evaporator coil. If the T2 sensor exhibits any faults, it can generate incorrect readings and trigger the EC error. In this case, the defective T2 sensor must be replaced with a new and reliable one.

If the T2 sensor shows no abnormalities and the unit continues to blow cold air correctly, proceed to the next step.

Step 3: Replace the interior printed circuit board (PCB)

If the Giatsu unit still displays the EC error after checking the T2 sensor, there may be a failure in the interior printed circuit board (PCB). The PCB controls various functions and components of the air conditioning system. Malfunctioning in this board can trigger the EC error.

In this case, it is recommended to replace the interior PCB with a new one suitable for the Giatsu unit model. It is important to seek the assistance of a qualified technician to perform this task, as it involves handling electrical and electronic components.

If the EC error persists even after replacing the interior PCB, proceed to the next step.

Step 4: Search for and repair leaks in the system

The EC error can be caused by refrigerant leaks in the system. It is important to carefully inspect the unit for possible refrigerant leaks. These leaks can occur in connections, pipes, or system components.

If a leak is found, it must be repaired promptly. It is recommended to seek professional help for the repairs, as it requires specific knowledge and tools. Once the leak is fixed, it will be necessary to recharge the refrigerant according to the manufacturer’s specifications.

If no leaks are found in the system after this inspection, move on to the final step.

Step 5: Search for and remove blockages or obstructions

In some cases, the EC error may be caused by blockages or obstructions in the air conditioning unit. These blockages can disrupt the normal flow of refrigerant and trigger the EC error.

It is necessary to carefully inspect the unit for any foreign objects, dirt, or dust accumulation that may be blocking the pipes or system components. If blockages are found, they must be safely and carefully removed.

Once all the necessary checks, repairs, and blockage removals have been completed, the Giatsu unit can be restarted. If the problem has been successfully resolved, the EC error should no longer appear, and the unit should function properly.

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