Five years ago I bought a costly through-the-wall Frigidaire A/C, model FRA106HT1. This machine fits into a special metal sleeve in the bedroom of my tiny, top story apartment in which the windows and the sliding glass door to the balcony all face due West (so I get hot Summer sun from 12 Noon 'til sunset)-- the apartment building will only take these expensive through-the-wall machines which cost more than standard window air conditioners. Also, all the windows in the building are those awful, tall LEFT-RIGHT sliding ones which won't accept a regular window A/C. My machine worked fine before this year. Earlier this year it began to produce only fan temp air, not cool air. I thought that maybe the machine needed a shade outside on my balcony which is in that hot sun and has no tree shade. I draped a cheap plastic, roll-up porch shade over the top of the metal sleeve and onto the tops of two cheap plastic patio chairs. But that caused the problem of heat not easily escaping from the back. I then removed that draped shade and there was better performance especially during and after nights which were cool. Yesterday though the machine is no longer producing cool air, only fan mode air. I notice early this year and again now that there's no water pooling on both sides of the back of the machine outside on the balcony. In the first 4 yrs. of ownership and operation, that water was always there in the Summer because I run the machine ALL THE TIME, DAY AND NIGHT. [And because a drug addict non-stop smoker living directly below me and constantly smoking under my balcony, I had to keep my windows closed with the A/C running in Winter due to the fact that the apartment building is way over heated which keeps me from sleeping-- I like it cold for sleep time.] Now there's no water and I wonder what this means. Is the absence of the water a symptom of a failure in the machine? Is something clogged up not allowing the water to pool in those 2 areas? [No water is dripping into the bedroom which is the only place I have for the A/C.] Any thoughts about this and what has to be checked or what's maybe shot now? Could it just be that the thermostat is faulty and now shot?