A/C No Worky
 

It's 97F here today so I turned the A/C button on and got nothing. The A/C snowflake symbol blinks three times and goes out. According to the book, that indicates it's too cold outside for the A/C to be on. My external temp sensor in the mirror confirms it's 97F outside.

Any idea what might be wrong? I checked the A/C Compressor Relay fuse and it was good. The A/C Compressor fuse itself is one of those huge ones, so no idea how to check that.