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Troubleshooting Surplus Power Not Being Used on the eddi

Introduction:
If the display on your eddi constantly shows "Waiting for Surplus" and the export power is reading as 0W, this indicates that the system is not using any surplus power. Several factors can contribute to this issue, including incorrect installation or a faulty grid sensor. This article will guide you through the troubleshooting steps to help resolve the issue.

Symptom:

  • The display on the eddi constantly shows "Waiting for Surplus."
  • The export power is 0W, meaning no surplus power is being used.

Possible Causes:

  1. Grid Sensor Incorrectly Installed:
    The grid sensor may not be correctly connected to the eddi or harvi, preventing the system from detecting surplus power.

  2. Faulty Grid Sensor:
    A malfunctioning or damaged grid sensor may fail to detect surplus power, causing the export power to read as 0W.

  3. No Signal from harvi (if used):
    If a harvi is used, a failure in communication between the eddi and the harvi may result in no surplus power being detected.

Step-by-Step Solution:

1. Check the Grid Sensor Connection:

  • Ensure that the grid sensor is correctly connected to the CT1 terminals of the eddi or harvi. A loose or disconnected sensor can cause the system to misread the surplus power.

2. Verify the Correct Installation of the Grid Sensor:

  • The grid sensor must be installed on the correct cable, typically the live wire of the supply. Double-check the sensor’s installation to ensure it is positioned properly to measure the correct parameters.

3. Test the Resistance of the Grid Sensor:

  • Remove the grid sensor from the cable, then use a multimeter to check its resistance.
  • The resistance should be approximately 200Ω when the sensor is not connected to the cable. If the resistance is significantly different, the sensor may be faulty and need replacement.

4. If Using harvi, Check CT Input Settings:

  • If you are using a harvi, ensure that the CT input is correctly set to Grid in the harvi settings.
  • To verify this, navigate to the Devices section in the eddi menu and check the settings for harvi. The correct configuration is crucial for accurate surplus power detection.

Additional Troubleshooting Tips:

  • Inspect the Grid Sensor for Physical Damage:
    If the sensor's resistance appears to be off, inspect it for any visible damage, such as wear or cuts in the cable. If damaged, replace the grid sensor to restore functionality.

  • Check for Interference or Electrical Noise:
    If the grid sensor is correctly installed and functioning, but the issue persists, check for any sources of electrical interference in the vicinity of the sensor. External noise or interference can sometimes affect the sensor's performance.

  • Ensure Proper Calibration:
    In some cases, the eddi or harvi may require recalibration to properly detect surplus power. Consult the user manual or myenergi’s support resources for guidance on recalibrating the system.

Conclusion:

If the eddi’s display shows "Waiting for Surplus" and the export power remains at 0W, it is most often due to issues with the grid sensor installation or a faulty sensor. By following the troubleshooting steps outlined above, you should be able to identify and resolve the issue. If the problem continues, consider contacting myenergi’s technical support team for further assistance.