I replaced the ERC in November 2008. Then in May 2009 I was getting the same F1 error code so I just turned the power to the oven off.
It seems that the fan was working differently than it had before I replaced the ERC. The fan turned off when I turned the oven off. Before it would run for a few minutes after I turned it off. Did I get a lemon board or is there something else that could be causing the problem?