Constant use of the air-con keeps the vehicle’s air conditioning system well-lubricated, leak-tight and in good shape.
Car manufacturers recommend having an air conditioning service every two years. When the car air conditioning system is not used it encourages the build-up of bacteria and infrequent use of the air conditioner makes bacteria and other micro-organisms grow on the evaporator - detrimental to the proper functioning of the air conditioning system and a possible cause of health issues. The price of a car air conditioning system regas service is typically around $115 to $165. However there might be a need to diagnose your vehicle to be sure of what is wrong to carry out an effective regas. Refrigerant gas in air conditioning systems if allowed to escape can be dangerous to the ozone layer so only technicians with a gas refrigerant handling licence should handle refrigerant gas.
One of the faults to look out for, or the most obvious issue that your car air conditioning system is due for service, is when you start to notice it isn’t cooling or heating effectively. Perhaps the setting is not corresponding to the temperature? Another problem to look out for are unusual sounds. If you hear banging or a rattling sound, then you know it is time to service the car air conditioner or get a regas done. The issue might be with the refrigerant gas, drive belts, the cabin, a leak, or some other parts in the system of car air conditioning. Also, it is not a good sign when your air conditioner makes a bad smell. This can mean the car air conditioning is gradually breaking down and there might be the growth of some micro-organisms inside.
You should take your car aircon for service or check every year or so. Leakages are inspected by the use of a leak detector and condenser temperature is assessed to evaluate the condition of the car air conditioner.
When you take your vehicle to a qualified technician, he evaluates the condition of your vehicle by carrying out a comprehensive diagnosis. A good mechanic will take a look at the different parts, make a suction line temperature reading, check hoses, seals and the connecting tubes for leaks and cracks. Often when the car air conditioner is left unused for a long time, the hoses and seals get dried and start to crack up.