How To Troubleshoot Common Aircon Issues Without Professional Help

Having an aircon unit in your home means knowing how to troubleshoot common problems without professional help is important. This blog will provide information on the types of tools you need and tips on diagnosing the underlying issue to ensure your system runs well all year round. So let’s get down to helping you maintain a cool and comfortable living environment – read on for more!

The Right Tools For The Job

Having the right tools on hand is essential for safely troubleshooting aircon problems, so be sure to equip yourself with a hammer with a fibreglass handle, pliers, a reciprocating saw and more! Read on to learn more about what you need.

Hammer With A Fibreglass Handle

A hammer with a fibreglass handle is essential for troubleshooting most aircon issues. The lightweight and durable material of the fibreglass handle provides superior shock-absorbing properties, making it easier to identify and eliminate problems.

You can also use it to seal small holes or gaps in condenser fins, which may have been caused by corrosion or damage due to wear and tear. Additionally, the ergonomic design of this type of hammer prevents hand fatigue from extended use during troubleshooting tasks.


Pliers are one of the essential tools to have when troubleshooting your aircon. Pliers are used for cutting, splicing, crimping, and safely tightening nuts and bolts.

They also come in handy for pulling out trapped screws when disassembling components inside the air conditioner unit. Moreover, you can utilize pliers to loosen stuck-on rust and debris from machines that could otherwise cause more damage if handled incorrectly.

Reciprocating Saw

A reciprocating saw can be useful for troubleshooting common aircon issues. It is designed for cutting through a wide range of materials, including soft and hard plastics, pipes and even metal. Its ability to make quick and accurate cuts makes the reciprocating saw an invaluable tool for those looking to repair their air conditioner without professional help.

The main advantage of the reciprocating saw is its versatility. With various attachments available, you can use it for different functions such as cutting wood or metal studs in walls, ceilings, frames etc., performing flush-cut tasks on surfaces like tiles and flexible materials, and making other complex cuts that would otherwise require specialized tools. This means you don’t have to buy multiple power tools to complete one task – one lightweight design can conveniently do many jobs around your house or garage!

Vacuum Pump

A vacuum pump is an essential tool to troubleshoot common aircon issues as it allows for the removal of contaminants and moisture from a sealed system. It also helps evacuate the remaining refrigerant from the system to perform repairs or introduce new refrigerant.

A Vacuum Pump should be powerful enough to achieve at least 500 microns, but more advanced pumps can reach up to 100 microns without needing multiple passes. Moreover, when using a Vacuum Pump, ensure you have all necessary hoses ready. Avoid cutting corners by not replacing filters often enough or extending run times beyond the manufacturer’s recommended levels.

Refrigerant Pressure Gauge

The Refrigerant Pressure Gauge is an essential tool for troubleshooting aircon issues. It is used to measure the pressure on the refrigerant side of your air conditioner, which can give you insight into how efficiently it’s working and help identify any potential problems.

The gauge will show the pressure level before, during, and after operation; this allows the user to determine whether or not there is a problem with the flow or refrigerant levels in their system. You can then compare the readings from this tool against industry standards for respective units, thus allowing quick assessment if something appears wrong with overall performance and flow rate.

Using a Refrigerant Pressure Gauge can save time spent trying to diagnose an issue as it allows for direct monitoring of key components such as valves, motors, fans and compressors without further disassembling other parts of an AC unit.


An anemometer is a tool that measures air velocity. This device can detect airflow and help diagnose ventilation issues, which is crucial in maintaining optimal air conditioning performance.

It’s an ideal way to tell if the blower or fan motor is functioning properly and delivering the right amount of conditioned air into your space.

Compressed Air

Compressed air provides both power and cooling to an air conditioning system. It helps move refrigerant throughout the unit and aids in cleaning out dust, debris, and other particles that may have built up over time.

Compressing air makes it easier to reach difficult access points, such as behind walls or ceilings where traditional equipment cannot fit. Compressed air also comes with a hose attachment for easy use when troubleshooting an AC unit without removing any panels or insulation.

Condenser Fan Motor

The condenser fan motor is an important part of your air conditioning system as it helps to dissipate heat from the evaporator. Located outside the unit, it provides a steady airflow that cools off the refrigerant before entering and circulating throughout the room. The motor must run continuously when the A/C is running to keep temperatures balanced.

If your air conditioner fails to cool, you can troubleshoot using a multimeter by testing the power going into and out of its terminals for continuity, voltage and amperage ratings. If corrected voltages or resistance don’t match those indicated on your appliance manual, chances are there’s a problem with your fan motor—you may wear it down due to years of use or up against excessive strain from heavy dust build-up around its blades. Replacing this component can help restore normal cooling operation safely and quickly.


In conclusion, troubleshooting common aircon issues can sometimes require professional help. With the right tools and knowledge, you can do it easily with your hands! Ensure you have the right instruments readily available such as a hammer with a fibreglass handle, pliers and anemometers to troubleshoot your air conditioner successfully.

Cleaning up clogged vents and changing out filters should always come before looking into more complicated repairs, like checking for blocked airflow or examining components of the compressor unit, like contactors. Start now and get your home cooled today without needing any help!

Diagnosing The Problem

To be able to troubleshoot an aircon issue without professional help, it is important first to identify the problem – find out more about how you can do that here!

Checking The Air Filter

Checking the air filter is an essential part of troubleshooting common aircon issues. First, inspect the inside unit’s air filter and clean it if necessary, as dirt-filled filters can restrict airflow and block cold air from reaching its full potential. If you notice excessive dust on or around the filter, turn off your system, remove the filter and vacuum it to ensure all particles have been removed. This will help improve efficiency and reduce energy consumption overall.

Next, check for any tears or rips in the material – this can occur when cleaning a dirty air filter with too much force or installing one incorrectly. If any damage is sustained, you may require the replacement of either the entire filter or portions of it to ensure proper filtration and avoid further problems. Remember that continuously replacing damaged filters is costly and bad for your system’s health, so make sure to use appropriate cleaning methods whenever possible!

Inspecting The Coils

The evaporator and condenser coils are a key part of the cooling system. These must be inspected to ensure they are working properly. Any signs of corrosion could mean that the air filter needs replacing or an issue with the refrigerant lines. It is also important to check for damaged fins on both coils since these can reduce airflow and impede heat transfer efficiency.

To inspect the coils, it is necessary first to remove any debris accumulated around them with compressed air or a vacuum cleaner. This will help to reduce clogging in case there are problems inside the coil structure due to dirt build-up. Once cleaned, use an anemometer to measure the static pressure at each side of the coil and note any readings below 0.2 inches of water column for further investigation.

Examining The Compressor

You must examine the compressor for any possible problems when troubleshooting aircon issues. As the main component of an AC unit, having a faulty or broken compressor can cause a wide range of issues.

To check it, inspect its wiring and connections carefully; look for any burnt wires and other signs of electrical damage. Also, ensuring all the fasteners are tight is important because loose components can reduce performance and efficiency.

Additionally, inspecting the fan blade to ensure it spins freely will help determine if there are blockages within the system or not.

Looking For Signs Of Blocked Air Flow

Poor or inconsistent cooling could be due to a blocked air flow. To identify this issue, you should check for any ice accumulation on the evaporator coils and examine the fan blades for debris or dust which may be obstructing them.

Additionally, take off any coverings such as lint filters and inspect the area between the condenser and evaporator coils for any dirt build-up that might block airflow. If there is an obstruction, use compressed air to clean out those areas.


Aircon systems are complex and require professional technicians to fix any major problems. However, with the right skills and tools, many common aircon issues can be troubleshooted by homeowners.

By understanding the basics of air conditioning maintenance such as cleaning filters, inspecting refrigerants systems and adjusting thermostat settings, you can reduce your reliance on professionals for basic repairs and save money in the long run.

Leave a Comment

Your email address will not be published. Required fields are marked *