Our converter recently went out, One of the 2 capacitors blow. Looking at it further and not thinking about it before a cabinet door was mounted over the fusebox\converter. This blocked the required airflow needed for the converter to work properly. Our converter blow when we had both AC units going and it was 95+ outside.
If any of you have this model it is worth investigating just to verify this won't happen to you.
Poor design, not sure what Keystone was thinking. The manual even mentions to make sure and have good airflow around the fusebox\converter doop