There is a lot of information available on the internet to find the right heating and air conditioning unit for your home. You will have to decide on the manufacturer that best fits the system you want to buy. Also make sure that you check out the warranty that comes with the system to see if it covers parts and labor cost or just parts. Read all the fine print in the warranty because somewhere it should say that you have to have a qualified service company perform a preventative maintenance at least once a year.
Keep those records in a folder so that if your air conditioner was to breakdown you can show that all maintenance has been performed correctly by a service technician so that your warranty will cover the cost your repairs. Due to the cost of having your heating and air conditioning unit repairs down, even if you do not have a warranty your system still needs regular maintenance. Having a preventative maintenance done two times a year is best. A lot of repairs can be prevented by having your system cleaned by you or a service technician.
Having repairs done on your heating and air conditioning unit can be costly when it comes to replacing a compressor, indoor coil, outdoor coil, fan motors and leak repairs. Replacing the major components of your system has to be done by a service technician as per EPA (Environmental Protection Agency) standards. This is because the major components deal with refrigerant in the system having to be reclaimed or pulled out of your system before you can remove the bad part.
Remember when it comes to replacing parts or performing a preventative maintenance always think of safety and turn off the power first.