Car Air Conditioning FAQS
Clem Camage Motors are well placed to take care of all of your Car Air Conditioner Re-gas, Repair, Inspection and Servicing needs
You ought to drop off your car to a reputable workshop such as Clem Camage Motors regularly to make sure the air conditioning system continues performing at its best as well as having the mechanics check the condition of the whole vehicle.
Repco Authorised Service mechanics perform a 65 point Vehicle Inspection with every service and are able to give you a heads up about any items that may need to be renewed in the near future or those that are already worn beyond repair.
Clem Camage Motors can arrange automotive air conditioning service with a licenced technician in and around Queanbeyan and the surrounding areas.
Air Conditioning FAQ's
How does a car air conditioner work so efficiently?
An automotive air conditioner system contains four basic parts - a belt driven pump called a compressor to compress and circulate refrigerant gas, the condenser to redistribute heat and condense gas to a liquid, an expansion device, either a thermal expansion valve (TXV) or an orifice tube (depending on the kind of air conditioner system used). Systems using orifice tubes also have an accumulator before the compressor to remove moisture from the refrigerant while TXV systems have a receiver-dryer before the evaporator to perform the same crucial task. Both the accumulator and receiver-drier are also used to store refrigerant.
Your car air conditioner is designed to withdraw heat from the air inside the vehicle and transfer it out of the car, leaving only cooled or 'conditioned' air behind to be recirculated. Hot air is passed across a gas filled evaporator, where the heat is easily absorbed by the refrigerant (in gas form), effectively removing the heat from the air in the car.
The now heated gas is pulled through the compressor where it is further heated (via compression). The next stage involves the refrigerant being forced through the condenser to quickly extract the heat from the refrigerant. The refrigerant, now condensed to a liquid, then moves through the expansion device (either a TXV or Orifice tube), which regulates the flow of refrigerant going to the evaporator, changing the high-pressure liquid to a low-pressure mist (gas). A fan blowing over the cold fins of the evaporator produces the cold air being blown into the car and the entire process then begins all over again.
What takes place in a a car air conditioning service?
A typical air conditioner service may include some of the following items;
Confirm air vent temperature is correct
- Check condenser temperature ok
- Inspect suction line temperature
- Adjust drive belt and pulley
- Operational check of thermostats and valves
- Validate cleanliness of the condenser fins
- Ensure adequate condition of components and hoses
- Evacuation and recharge of refrigerant (where required)
- Use electronic leak detector to asses system lines and components for leaks
Why do I need a car air conditioner system service?
Checking or changing the oil level in the refrigerant helps protect the compressor and stop it from seizing up. If the air filters become plugged with dirt and bacteria it will affect the performance of the entire system and it can even cause it to fail to work completely. As well as impacting air conditioner efficiency, dirty air filters can cause all kinds of health problems too.
An automotive air conditioner system must be checked for problems once a year for any signs of failure of the seals, hoses and connections to make sure refrigerant is not leaking over time. Regular service of your vehicle air conditioning system keeps refrigerant at optimum levels meaning the system does not need to work as hard and this in turn protects the system from damage and reduces the amount of fuel being used up.
Why does the car air conditioner need to be serviced?
Your car air conditioner is designed to withdraw heat from the air inside the vehicle out of the car, leaving only cooled or 'conditioned' air behind to be recirculated. This is achieved using a special compound called refrigerant, capable of readily absorbing heat as a gas and quickly losing heat as a liquid.
Being exposed to the mercy of the elements and very intense operating conditions and being expected to operate occasionally rather than being 'Always On' can cause decay of the connections, seals and hoses. Your vehicle air conditioner system should be examined on a regular basis to ensure there are no problems or refrigerant loss due to failure or leakage from these points.
Simply by cooling the air in your car under normal running conditions, the filters of the air con get dirty and intermittent use can cause seals to dry and crack, allowing them to leak. Even without leaks, the gas in a car air conditioning system will eventually begin to degrade or evaporate over time and should be recharged where required to keep the air con system in peak running condition.
Can I service my own Air Conditioner?
Only qualified mechanics with the appropriate training should attempt to service a car air conditioner. Specific licences are required to be able to service or repair some types of car air conditioning systems, especially where regas (recharging of the refrigerant) is concerned. Strict guidelines and procedures must be adhered to when handling certain refrigerants, which must always be fully recovered and not allowed to escape into the atmosphere during servicing.
Refrigerant can also pose serious health risks if handled incorrectly. Specialist equipment is also required as the air conditioning system is under extreme pressure and must be pulled into a deep vacuum to remove any moisture, to avoid seriously damaging the system.
Clem Camage Motors can arrange Air Conditioning Service with a Licenced Technician. You can find out more about licensing on the Australian Refrigeration Council (ARC) Website.
What causes a bad smell in car air conditioners?
The damp environment can promote the development of microbes, bacteria and even fungus growth inside the evaporator core. This can lead to nasty smells and possibly even be bad for the health of any vehicle occupants. While modern evaporator units tend to be more efficient they have more fins, meaning an increased capability to trap moisture and allow for micro-organism development.
Clem Camage Motors mechanics can use special ultrasonic technology to ensure the extermination of any micro-organisms that may cause unpleasant odours or health issues.
Just ask about our MIST service, which will kill any bacteria that may be lurking in your car’s air system. These bacteria can cause odours and even make you sick, especially if you have allergies or asthma. A MIST service doesn’t just make your car smell better - it makes it healthier for you and your family.