The fuses outside one of them gets very hot and turns dark on top.here again the compressor stops,and just the furnance is running,if I shut it off and wait a few minutes,turn it on the compressor will run for about twenty minutes and shut off.|||The fuse, or circuit breaker must be undersized, check the rating needed for the central ac unit.
The winding of the compressor has become weak so it is taking high amperes after running. Check the amperes of the compressor with an amphere meter and the fuse installed.
Check the input and output voltage with an volt meter. There can be a burnt contact in the mainswitch, contactor, or loose connection somewhere in the power line upto the compressor. Shut off the power and tighten all the connections.
Check Capicitor and Potential relay if the central ac is of single phase.
If all this dosent work then you have to call an ac technician|||Try calling an ac repair man or an electrican|||its getting too hot, have you cleaned off the vents on the outdoor part of the ac?|||Is your outside fan coming on when your unit starts up? the compressor has an IP switch which will cut off if your fan is not coming on. you can e-mail me if you want I will try to help.|||sounds like an overload somewhere. call an hvac tech.|||Eith the compressor is bad or you need a bigger breaker or fuse.
