Intermittent wiper setting stopped working

My 2000 Civic DX 4 cyl/5 sp (manual everything) just had alternator replaced and I noticed the intermittent setting and the wash/wipe option of the wipers stopped working. Slow and Fast speeds still work. How do I fix it? Could it have a fuse or switch blown when the alternator surged/drained the battery prior to getting replaced or is something simply unplugged since the alternator was replace? Thanks.