Look for calculators online to truly understand what size of system you require for your space or house. Look in the manual or on the advised size for this info.
A/c have the tendency to ice up. The drain line could also freeze over. Try changing your thermostat to just the fan so that it disables the compressor if this is something that's taking place to you. You must leave the repair to a professional, but switching to the fan will certainly make the ice melt.
Know what work you require prior to you choose an appliances specialist. If they have actually not seen your current system, it will certainly be hard for an appliance professional to supply you a price estimate over the phone. If you over the phone without the information readily available, it will certainly be more difficult.
Some professionals will attempt to include charges on later for fuel charges. Having a solid composed contract will let you prevent these kinds of problems.
Companies that are well developed have track records generally provide much better service. It is riskier to work with a service provider with little experience.