CERV96 wrote:FC- is the outdoor unit running?
Freon never goes bad unless the compressor had a burnout. Usually at that point you may as well replace the whole condensing unit. Unless the compressor is under warranty. If you need freon then you have a leak somewhere in the system. Sometimes the leak is so small it can not be found. Most likely in the a-coil above your furnace.
Yeah its running and blowing air...just not very cold.
You can pretty much eliminate the contactor or capacitor knowing that you fan is running. A few other things that you can check.
-Can you tell if the compressor is running? If so there are two lines that go in to your condensing unit. A small line(liquid line) and a large line which is insulated(suction line). Slide the insulation back.
-If the suction line is iced then it could mean a few things.
1) Your filter is dirty
2) You have some freon in the system but not enough to remove the heat from your house.
-If the suction line is bone dry and not cool then you are almost or if not totally out of freon.
-If there is condensation and the line feels beer can cold everything is mostly OK which will not be the case.
-If your fan is running and not the compressor it is possible that the internal overload in the compressor has tripped or your compressor is bad. The only way of resetting the overload is to cool down the compressor(will need to probably call someone for that since you would have to take stuff apart and troubleshoot). If your compressor ends up being bad you may want to try and find out if there is any warranty information if this is the case you will probably have to open your wallet regaurdless.
As in most cases you may just need some freon. If the leak is small it should last you a few years. Paying someone a couple hunded bucks every few years can be better than paying 5-10 K to replace the condensing unit or everything(funace/AC changeout).