Not only is he a knucklehead, typically anyone he hires to fix anything is usually a knucklehead too. I am living on a caribbean island so it's about as weird and wacky as you would expect.
I could really use your help to guide these idiots in a productive direction if you know what I mean. Landlord is a no maintenance type of guy and he is going to hire the cheapest person he can find.
A mini split of unknown age cooling off just one room - 1200 cu.ft. - concrete block walls tin roof with foam board insulation (indoor temp in room is same as outdoor temp so roof insulation seems to actually be sufficient. No sun on exterior walls. Outside temp of 91 peak, cooling to 77 or 79 interior setting.
AC did work like a champ for last 2 years. Could freeze the room down very quickly, months ago started taking much, much, much longer time to cool off room. Electric bills through the roof (the only thing that will motivate landlord). Sent AC guy to check machine. Interior wall unit behind filters beyond filthy. When asked when it was last cleaned repairman (who apparently installed it) replied with disgust "eternity".
Repairman did not check exterior unit for some reason (I told you knuckleheads) Trying to get him back for that (I imagine when landlord gets next electric bill he will).
Dramatic improvement in performance, but still seems to be running less well than before.
* Seems moderately longer to cool off room compared to when running at it's best. Acceptable to me, but for electric bill I would like to get landlord as happy as possible.
* Unit cycles off (or to low sounding running speed) before attaining temp target, then cycles off and on till temp achieved (sometimes hours). Does not seem to be cycling off at strange rapid rate or anything, just like it thinks is has hit the correct temp.
* I have very accurate thermometer and before AC would be dead on temp we programmed very quickly, now often 3 degrees higher than programmed (occasionally has over shot and several degrees cooler. Unit is often blowing out non cooled air when still not at temp set like the thermostat somewhere is confused. Interior temp is usually achieved by morning -which is also the outside temp, 77.
* Is it also possible that at cooled temp there can be more humidity than before? Just an impression, but humidity does not seem as lowered as before even when room is sufficiently cooled (often feels stickier than before, feels very dry by morning).
Any help for me to make suggestions on what they should be checking would be greatly appreciated.
Fantastic forum. Thanks in advance.