Do you need replacement parts for your air conditioner?
When your AC unit is broken and you need replacement parts I suggest finding the closest HVAC supply house near you. There you should be able to find whichever parts you need to make the necessary repairs. It does not matter the name brand of your unit, most heating and cooling spare part companies carry all brands.
If for some reason the parts warehouse does not have what you need for the name brand heating and air system you have do not worry. All you need to do is find your local certified dealer for that particular brand of air conditioning and heating unit. They will most definitely have what you need and if for some odd reason they do not have it they can legally order it for you.
Now, once you have the parts you are still not in the clear. You must have the proper knowledge to fix your AC unit and heat pump or you could cause much more severe damage. If you do not have the skills or awareness on how to fix your system I highly recommend calling one of your local air conditioning repair contractors to help.