Evaporator coils will eventually fail due to erosion. Because the cooling refrigerant flows through the evaporator's coils it begins to wear down the inner lining. This in turn weakens the coils. Once this happens, you can develop refrigerant leaks and replacing AC evaporator cost-effective than just trying to repair the leak itself. In fact, if your AC unit uses R-22 refrigerant, it makes more sense to replace the entire unit than trying to repair the leak. If you would like more information about AC evaporator replacement in Summerville, speak to the experts at Rudd Plumbing, Heating and Air today.