Loud humming noises or suspicious smells from your car’s AC system are definitely alarming and quite often perplexing. If you notice your Air Conditioning acting strange, there might be a problem with one or more of its internal components. Understanding the AC’s operation and its main elements will help you deal with any crucial car aircon repairs and maintain a well-functioning AC system.

Your aircon contains refrigerant which cycles through a compressor, condenser, expansion valve, and evaporator. The basic principle entails removing moisture and heat inside your car and leaving behind cold air. Read on for information about each major AC component, and the warning signs to look out for which will require the best car repair north Brisbane.

Compressor

Your car’s engine drives a compressor through a belt. This vital AC component compresses the gaseous refrigerant and transports it at a high temperature and pressure to the condenser. The compressor contains special oil for lubrication, parts of which travel with the coolant throughout the AC cycle.

You’ll need a car aircon repair for the compressor if:

•      The unit is blowing warm air
•      It’s making strange, loud noises

Condenser

The condenser cools down the hot gaseous refrigerant and changes the gas to liquid. The refrigerant discharges heat, and when it comes into contact with the outside air, the air absorbs this heat. Leakage in condenser connections or inadequate heat exchange because of soiling causes the component to stop working as it should.

You’ll know the AC condenser isn’t working if:

•      Cooling is not very effective
•      The AC doesn’t turn on

Find a reliable car repair north Brisbane workshop and get the AC checked. Professionals will inspect the condenser for contamination or leaks and conduct pressure tests. You might require a condenser replacement or a car aircon repair depending on the diagnosis.

Expansion valve

The expansion valve separates the high pressure and low-pressure portions of the refrigerant network. When the refrigerant liquid travels from the high-pressure side through the pipe, it becomes a gas again at the low-pressure part. This valve also controls the flow of refrigerant.

Defects in the expansion valve can cause:

• Poor cooling
• Complete AC system failure

Before passing on to the evaporator, the refrigerant gas flows to a filter dryer component. It removes unwanted particles from the refrigerant.

Evaporator

The evaporator receives clean, filtered refrigerant gas, which absorbs heat from your car’s air. This heat escapes through the evaporator fins, leaving only cold air in your vehicle. The refrigerant travels back to the compressor, where it initially started. A blocked evaporator pipe, contaminated evaporator, or leakage at the connection will require an immediate car aircon repair.

A defective evaporator may exhibit the following symptoms:

• Poor cooling
• Air conditioning system fails to start
• Inadequate ventilation

Other Car Aircon Repairs

Your aircon system can encounter problems with other components, as well. These include pressure switches, blower fans, fittings and hoses, and the condenser fan. It’s crucial to pinpoint the exact source of your AC’s unusual behaviour and get car aircon repairs right away.