Unless a homeowner has a routine of getting preventative maintenance for their central air conditioning system every so often, it is only natural for problems to develop after long-term use. One problem that is sometimes experienced by homeowners is the ability to turn the air conditioner on, but only able to feel warm air flowing throughout the house. Getting into such a situation on a hot day can cause a lot of discomfort, and the problem isn't always easy for a homeowner to pinpoint on their own. It is actually in the best interest of a homeowner to leave inspecting and repairs to a professional technician if the fastest possible repair is desired. Numerous things could be wrong with a central air conditioner when it doesn't cool down, but a professional can figure out the problem in no time.
Warm Air Is Unable to Escape
Basically, central air conditioning systems are designed to automatically remove warm air that's on the inside of the house. The condenser unit is the part of the system that makes it possible for warm air to escape into the outside of the house. When an air conditioner seems to only circulate warm air, it might mean that the condenser unit isn't working as it should. A technician might need to replace the coil that is inside of the unit, but if it isn't damaged, cleaning it might be all that is needed.
The System Is Excessively Dirty
Another issue that can arise that causes warm air to circulate is a system that has accumulated dirt for a long period of time. A technician might need to give the entire system a thorough cleaning, including parts such as the air ducts, coils, vent covers, and filter. Parts such as the vent covers and filter might be easy for you to clean on your own, but other areas of the system might require the skills of a professional. A technician has tools that can reach areas that you might not be able to access and clean on your own.
Refrigerant Has Been Leaking Out
When an air conditioner is leaking refrigerant, it usually leads to warm air circulating. A technician can check the lines for damage to determine if they can be sealed up. If the lines are badly damaged, replacing them is most likely necessary rather than sealing them up.
If you have more questions about problems with your AC, contact a local air conditioning contractor.