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H1: Status Code - Defrosting or Oil Return in Heating Mode.


Step 1: Check the Outdoor Ambient Hi/Low

  • Monitor the outdoor ambient temperature to ensure it is within the acceptable range for the heating mode.

  • Check for any abnormalities in the outdoor ambient temperature readings that may indicate issues with defrosting or oil return.

  • Ensure that the outdoor ambient conditions are suitable for the heating operation.


Step 2: Check by 4 Point Temp Check

  • Perform a 4-point temperature check to assess the system's performance.

  • Check temperatures at various points, including the indoor and outdoor units, to identify any irregularities.

  • Verify that the temperature differentials align with the expected values for the heating mode.

  • Inspect for any signs of malfunction or inconsistencies in the temperature readings.

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