First I would call your selling dealer and make sure that the defective unit is under warranty (it should be with the 2 year warranty from Airstream). It is not a difficult procedure to change out a converter, especially if it's the identical unit.
Any Airstream dealer should be able to do it for you. If you were not in the warranty period, I would suggest upgrading the converter, but this isn't an option under the warranty coverage.
Solar Tech Energy Systems, Inc.
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