Error code
ABB solar inverter All models code E021
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Meaning
Before connecting to the grid, the inverter carries out a test that regards the operation of the inverter relay. The test is carried out by “forcing” the switching of the relay and checking its functionality. The error is generated if a problem is found with the operation of the relay
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Address of this page: https://www.remfixit.com/tr/abbsolarinverter/tum-modeller/e021