I recently had to replace a cracked servo. I replaced it with a rebuilt aluminum body. The problem now is that the blower is not working, not even defrost. It was working fine before the servo went south. Heat and a/c work fine and the flaps are moving. Is there a fuse or could the amplifier be shot from the old servo? Where should I look first?

Fixed it. The fuse terminal needed to be cleaned, it was not getting a good connection.

Dielectric grease, baby! It's the only way to fly.