On arrival the master bedroom system was completely out of refridgerant. The downstairs system has a subcool of 2 with a design subcool of 11. The upstairs system had an adequate superheat. Two furnaces did not have water safety's and all three did not have sediment traps. Upstairs blower motor was leaking oil. Due to age and cost of repairs I recommended speaking with a comfort advisor about replacement on the master bedroom and downstairs system with the master bedroom system as priority. Comfort advisor visit is scheduled for Thursday from 12-3 and the plumber visit is scheduled for Monday.