Last updated on October 20, 2022

When you are living in Australia, the air conditioning unit is necessary for your comfort and health of the family.

The last thing you want is your air conditioner isn’t working when the temperature outside is rising during the peak summer season.

Here are the 7 quick & easy steps to check why your air conditioning system is not turning on.

Dirty Air Filter

How frequently do you clean the air filters of your AC unit? The air is obstructed when air filters get covered with dust and debris. A clean air filter secures the proper airflow.

AC absorbs humidity under ordinary circumstances. The condensation tray collects the tiny water droplets and drains through the drain pipe. But the clogged air filters allow water droplets to freeze and covers the entire coil with a thick layer of ice.

Follow These Steps To Clean Dirty Air Filters:

●     Use a vacuum cleaner for routine cleaning

●     Rinse the filter for a deeper clean

●     Use the automatic cleaning function

●     Or replace the filters, after a couple of months if needed

Evaporator Coils

Dust, dirt, dander and other sticky and adhesive debris can pile up on the filter, condenser, or evaporator coils within the air conditioner. Your AC system is full of delicate electronics components that should be clean for the smooth functioning of the AC unit.

When debris builds up makes your AC system less efficient and can eventually reach the point of total breakdown. Schedule regular maintenance with air conditioning professionals to avoid this problem.

Tripped Circuit Breaker

Circuit breakers are specially designed to turn off the system when they receive overload voltage. It is crucial to protect the other vital components of the AC unit.

The reason for a circuit breaker trip could be due to the old appliance that consumes too much electricity or maybe using too many appliances at once.

Regardless of the reason, if the circuit is tripped, the air conditioner won’t turn on. Just reset a breaker to connect your AC unit with the power supply.

Greasy Condenser Lines

Condenser lines get dirty very similar to air filters. Over time, due to lack of regular air conditioning service and maintenance, algae and mould will grow on these lines. In extreme cases, birds or rodents find it the most appropriate place to build their nests.

Follow The Simple Step To Clean Greasy Condenser Line:

●     Turn off the power supply of your AC unit.

●     Find the AC drain line (Mostly located outside)

●     Use a thin and stiff brush to clean.

●     Seal the dry/wet vacuum to the AC drain line to clear any debris.

●     Check for the drain pan. If it is full, clean it with mild soap.

●     Clean out any debris from the vent which connects the drainage tray to the AC drain line.

●     And finally, mix one cup of water with one cup bleach and pour it into the drainpipe and wait for 30 minutes.

If it is too complex for you, it is time to hire air conditioning professionals.

Refrigerant Leakage

Refrigerant is a coolant typically found in either a gaseous or fluid state. It promptly absorbs heat from the surroundings and provides air conditioning when connected with other components such as evaporators and compressors.

Refrigerant (Freon) leakage is harmful to your health. It can cause symptoms such as shortness of breath, dizziness, and ultimately lead to refrigerant poisoning.


These are not the only reason that hinders the proper functioning of your AC. There are other possible factors you need to check, such as poor wiring, faulty motor, blank, broken, or outdated thermostat, etc.

Posted onDecember 30, 2019

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