Completed check up on both furnaces. At this time, both furnaces are operating with inspect. Customer will be presented with recommendations for condensate safety switches. Spoke to customer about one of the units safety switch, and drain line that was not built properly. Also briefly checked out, condensers for both units, capacitors, and contactors. At this time all of those check out. Customer seemed interested in obtaining primary drain line safety switches possibly at next visit before the AC season starts.