My air conditioning unit isn cooling. Whats wrong with it?
A. Poor performance could be due to one or more factors: • Low refrigerant – an air conditioning system requires a minimum amount of refrigerant to cool properly. If the refrigerant level is low, it will work less efficiently and will not cool well. • Dirty condenser – the condenser is the heat exchanger which cools the hot high pressure refrigerant after it exits the compressor so that it can condense into a liquid. If the condenser is full of leaves, insects or other road debris, air flow through the unit may be impeded to the point where little cooling can take place. Cleaning the condenser should cure this problem. • Condenser cooling fan not working – the condenser often has its own separate electric cooling fan. This fan should come on, and remain on, when the air conditioning system is operating. If the wiring, fan motor, or motor relay is defective, the fan may not work. • Internal blockages – any type of debris, for example rust, in the system may block the tube or the meterin
