Car Air Conditioning FAQS
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Azzco Deluxe Garage are well placed to take care of all of your Vehicle Air Conditioner Re-gas, Repairs, Inspection or Servicing needs
You ought to drop off your car to a reputable workshop such as Azzco Deluxe Garage on a regular basis to make sure the air conditioning system continues performing in optimum conditon as well as having the mechanics evaluate the condition of the whole vehicle.
Repco Authorised Service mechanics perform a 65 point Vehicle Inspection with every service and can give you a heads up about any items that may need renewing in the near future or those that are already damaged beyond repair.
Azzco Deluxe Garage can arrange automotive air conditioning service with a licenced technician in and around Hoppers Crossing and the surrounding areas.
Air Conditioning FAQ's
Car air conditioners - what is the basic theory?
A car air conditioning system can be classified into four basic parts - a belt driven pump called a compressor to compress and circulate refrigerant gas, the condenser to dissipate heat and condense gas to a liquid, an expansion device, which could be an orifice tube or a thermal expansion valve (TXV) (depending on the type 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.
An automotive air conditioning is designed to extract the heat from the air in the interior area of the vehicle and transfer it to the exterior, leaving only cooled or 'conditioned' air to be redistributed. 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 is involved in a car air conditioner service?
A typical air conditioner service may include some of the following items;
Air vent temperature evaluation
- Condenser temperature assessment
- Suction line temperature test
- Ensure operation of drive belt & pulley ok
- Confirm correct operation of valves and thermostats
- Confirm condenser fins are clean
- Ensure good condition of components and hoses
- Evacuation and recharge of refrigerant (where required)
- Test system lines and components for leaks with an electronic leak detector
Why do I need a car air conditioner system service?
To prevent the compressor seizing the oil level in the refrigerant must be checked or changed. When the air filters become clogged with dirt and bacteria it will affect the performance of the entire system and it can even cause it to stop operating altogether. On top of reducing air conditioner efficiency, dirty air filters can cause all kinds of health problems too.
A vehicle air conditioner must be examined yearly for any signs of issues with the connections, seals and hoses to ensure refrigerant levels have not diminished over time. Regular service of your automotive air conditioner 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 results in a reduction of fuel consumption.
Why does the car air conditioner need to be serviced?
An automotive air conditioning is designed to extract the heat from the air in the interior area of the vehicle to the exterior, leaving only cooled or 'conditioned' air to be redistributed. 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 elements and very intense operating conditions and being in use intermittently rather than being 'Always On' can cause decay of the connections, hoses and seals. Your automotive air conditioner 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.
Azzco Deluxe Garage can arrange Air Conditioning Service with a Licenced Technician. You can find out more about licensing on the Australian Refrigeration Council (ARC) Website.
What is making the bad smell in car air conditioners?
The core of the evaporator can be the perfect breeding ground for microbes, bacteria and even fungus due to the damp conditions found there. This can lead to nasty smells and possibly even be bad for the health of any vehicle occupants. Modern evaporator units tend to be more efficient, but more fins equals increased capability to trap moisture and allow for micro-organism development.
Azzco Deluxe Garage mechanics will use special ultrasonic technology to kill any micro-organisms that may be the source of 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.