My search function simply reloads the page the user is on. I am using version 5.5. I check the recycle bin and removed a search results module that was there. I am pretty sure there is only the one search module on the site now. What else would cause the search to break?

Indeed. But I have already replaced the search module on the Search Results page. Do I need to direct DNN to that module somewhere? Something that may be worth noting here is that it was working when the search results page was attached to an old home page. A new home page was created and the old one deleted. That is when it stopped working. The search results page was deleted. It seems to have reappeared after but has not worked since.