7 Steps in the Professional Aircon Chemical Wash Process

Technician Doing Regular Aircon Servicing

Aircon chemical washing is a deep-cleaning procedure performed by experienced technicians to restore cooling efficiency, prevent system breakdowns, and extend the lifespan of your unit. Below is a step-by-step guide to how professionals carry out this intensive cleaning service:

1. Inspection and Preparation

Before starting, the technician inspects the aircon unit to assess the cleaning requirements. This helps identify visible dirt buildup, mold presence, and signs of leakage or inefficiency.

Power to the unit is turned off to ensure safety during the procedure.

Furniture, walls, and flooring around the aircon are carefully covered with protective sheets.

technician inspecting aircon before service
technician inspecting aircon before service

2. Disassembly of Components

The technician carefully dismantles key components of the aircon system to gain access to the internal parts that need cleaning:

  • Front panel
  • Air filters
  • Fan coil unit (FCU) cover
  • Drain pan

This allows a thorough reach into all areas where dirt and grime accumulate.

3. Chemical Application on Internal Components

A specially formulated chemical solution is applied to dissolve accumulated contaminants such as:

  • Mold and mildew
  • Dust and dirt
  • Bacteria and allergens
aircon undergoing professional chemical wash
aircon undergoing professional chemical wash

These chemicals are safe when handled by professionals and are rinsed off completely to avoid residue.

4. Cleaning the Drainage System

Clogged drainage pipes are a common cause of leaking aircons. The technician will:

  • Flush and clean the drainage system
  • Remove slime, algae, and debris
  • Ensure smooth water flow to prevent future blockages

⚠️ Note: Drainage cleaning may incur additional charges depending on the condition.

5. Outdoor Condenser Cleaning (extra charges may apply)

The outdoor condenser unit, which supports the cooling process, is often overlooked in basic servicing.

  • A brush and vacuum are used to clear debris and dust from the condenser fins and fan.
  • In some cases, a jet spray is used.
  • A clean condenser improves efficiency and reduces power consumption.

6. Monitor and Top-Up Refrigerant Gas (If Needed)

The technician checks the refrigerant gas level to ensure optimal cooling performance:

  • If the gas is low, it may cause weak or no cooling.
  • A pressure gauge or manifold set is used for accurate readings.
  • You will be advised if a gas top-up is necessary.
aircon technician checking refrigerant gas level
aircon technician checking refrigerant gas level

7. Reassembly and Functional Testing

Once cleaning is complete:

  • The unit is reassembled with all parts securely fixed.
  • A new or cleaned filter is installed.
  • The aircon is powered on and tested for:
    • Cooling performance
    • Unusual noise or vibration
    • Proper airflow and drainage

🌬️ Why Choose a Professional Aircon Chemical Wash?

Getting a chemical wash done by a professional ensures your aircon:

  • Runs more efficiently
  • Saves electricity
  • Improves indoor air quality
  • Lasts longer without major repairs

💡 Experts recommend a chemical wash every 6 to 12 months, depending on your usage and environment.

Quick 8 Steps To Perform Aircon Chemical Wash – DIY

germs inside of an aircon unit that is unseen to the human eye

In tropical climates like Singapore, air conditioners are essential for daily comfort. But over time, dust, mold, and grime can build up inside your unit, leading to reduced cooling performance and higher energy bills. A chemical wash is one of the most effective ways to restore your aircon’s efficiency and improve indoor air quality.

While a full chemical overhaul is best left to professionals, a careful DIY aircon chemical wash can help you maintain your unit in between servicing—saving you money and extending its lifespan.

Follow these 8 essential steps to perform your own aircon chemical wash safely and effectively:

professional washing the inside of an aircon unit

1. Safety Precautions

Before you begin, gear up for protection. Wear gloves, goggles, and a face mask to shield yourself from dust and cleaning chemicals. Make sure the area is well-ventilated and that you have all tools and cleaning solutions ready.

2. Turn Off the Power

Always switch off the power supply at the circuit breaker before working on your air conditioner. This is a critical step to prevent electrical shock or short-circuiting during cleaning.

3. Clean the Exterior

Start by wiping down the outer casing of your indoor unit using a damp cloth or sponge. Remove dust, grime, and any loose dirt. Be gentle around delicate fins and avoid pressing too hard on plastic covers or vents.

4. Remove and Clean the Filter

Open the front panel and remove the air filter.

  • For light cleaning: Rinse under water or use a handheld vacuum.
  • For deeper cleaning: Use a mild detergent or Biget spray (a popular cleaner) and rinse thoroughly in the bathroom.

5. Clean the Evaporator Coils

The evaporator coils inside your aircon absorb heat and are key to cooling. If they’re dirty, your system will struggle to cool effectively.

  • Carefully remove the front panel to access the coils.
  • Spray a chemical coil cleaner onto the coils and let it sit as instructed (usually 5–10 minutes).
  • Rinse off with clean water—avoid spraying directly on wires or electronic parts.

Note: If your evaporator coils are heavily caked with dirt, consider calling a technician for a full chemical overhaul.

6. Clean the Condenser Unit (Outdoor Unit)

Head outside to your condenser unit (usually located on the ledge, balcony, or rooftop).

  • Use a hose or low-pressure washer to gently clean the condenser coils and fins.
  • Remove any leaves, dust, or debris around the unit to maintain proper airflow.
  • Be careful not to bend the delicate aluminum fins.

7. Clear the Drainage System

A clogged drainage pipe can cause leaks or foul smells. Locate the drainpipe and use a brush, pipe cleaner, or a flush of warm water and mild bleach to clear any blockages. Ensure water flows freely out of the drain outlet.

8. Reassemble and Test

Once everything is clean and dry:

  • Reinstall the air filter and any panels you removed.
  • Restore the power at the breaker.
  • Turn on your aircon and let it run for 15–20 minutes.

Observe for strong airflow, no abnormal sounds, and steady cooling. If everything checks out—you’ve just completed a successful DIY chemical wash!

When To Call A Professional

image of aircon tech posing infront of a flurry of aircons

While DIY maintenance can go a long way, some issues require expert attention. Contact a professional if:

  • Cooling is still weak after cleaning
  • Persistent moldy or chemical odors remain
  • Your aircon leaks or makes strange noises
  • You haven’t serviced your unit in over a year
  • You’re unsure about handling internal components

Final Thoughts

Doing your own aircon chemical wash isn’t as intimidating as it sounds—with the right precautions and step-by-step approach, it’s a rewarding way to keep your unit running efficiently.

Regular maintenance like this can extend your aircon’s lifespan, improve indoor air quality, and help you avoid costly repairs. Just remember: when in doubt, get help from a certified technician.

Guide – Which Chemicals Are Used For Aircon Chemical Wash?

aircon chemical was by a professional technician

Aircon units are essential for maintaining a cool and comfortable environment, especially in tropical climates like Singapore. Over time, dust, mold, bacteria, and other contaminants accumulate inside the aircon, reducing its cooling efficiency and air quality. A chemical wash is one of the most effective ways to maintain your aircon.

Whether considering a DIY approach or hiring a professional, understanding the chemicals involved is crucial for proper aircon maintenance. We’re here to help you understand what which chemicals are used in an aircon chemical wash.

Following is the list of 8 commonly used chemicals for aircon cleaning:

1. Alkaline-Based Cleaners

Alkaline-based cleaners are commonly used in aircon chemical washes to remove grease, oils, and organic matter. These cleaners are highly effective for breaking down and loosening dirt and grime that has built up over time.

alkaline aircon cleaner
Alkaline Aircon Cleaner

How they work:

The alkaline cleaner breaks down the oils and grease inside the aircon, making it easier to remove them during the wash. These cleaners are safe for most aircon components and effectively clean parts like the coils, fan blades, and filters.

Benefits:

  • Removes oils and grease effectively
  • Helps maintain cooling efficiency
  • Safe for aircon components like coils and filters

2. Acidic Cleaners

Acidic cleaners dissolve mineral deposits such as rust, limescale, and other hard water buildup that can accumulate on the coils and drain pans. These deposits can block airflow, reduce efficiency, and even damage the aircon system.

How they work:

The acidic properties of the cleaner break down mineral buildup, allowing for easy removal. They are often used on components like the evaporator coils and drain pans to restore proper functionality and prevent further buildup.

Benefits:

  • Removes stubborn mineral deposits
  • Prevents airflow blockages
  • Restores cooling efficiency

3. De-Scalers

De-scalers are specialized solutions designed to remove hardened mineral deposits—especially calcium and magnesium—that build up over time in aircon systems due to hard water exposure. These deposits can obstruct water flow, reduce heat exchange efficiency, and strain system components.

De-Scaler chemical solution for aircon
De-Scaler chemical solution for aircon

How they work:

De-scalers contain chemical agents that react with limescale and mineral buildup, breaking them down into soluble compounds that can be flushed out easily. They are typically applied to components such as condenser coils, heat exchangers, and internal piping where scale accumulation is most common.

Benefits:

  • Dissolves tough limescale and mineral buildup
  • Improves heat transfer and energy efficiency
  • Prevents corrosion and long-term system wear

4. Rust Inhibitors

Rust inhibitors are protective treatments designed to prevent the formation of rust and corrosion on metal components within the aircon system. Moisture, condensation, and chemical exposure can lead to rust over time, compromising both performance and durability.

Aircon Rust Inhibitor
Aircon Rust Inhibitor

How they work:

Rust inhibitors form a thin, invisible barrier on metal surfaces, shielding them from oxygen and moisture—the key ingredients for rust formation. They’re commonly applied to parts like coil fins, drain pans, and metal casings to extend the lifespan of the unit.

Benefits:

  • Prevents rust and corrosion on critical components
  • Prolongs the life of the aircon system
  • Reduces maintenance costs and premature part replacements

5. Biocides and Anti-Mold Chemicals

Mold and bacteria thrive in the moist environment inside your aircon unit, especially in tropical climates like Singapore. Biocides and anti-mold chemicals kill these harmful microorganisms, ensuring that your aircon delivers clean, safe air to your home.

How they work:

germs inside of an aircon unit that is unseen to the human eye

Biocides and anti-mold solutions target mold spores and bacteria inside the aircon. The aircon is disinfected using these chemicals, improving indoor air quality and preventing musty smells from circulating through your home.

Benefits:

  • It kills mold and bacteria
  • Improves air quality
  • Prevents foul odors from developing

6. Surfactants (Detergents)

Surfactants, or detergents, are chemicals that lower the surface tension of water, making it easier for water to spread across surfaces and penetrate deep into the dirt. These chemicals are beneficial for breaking down dirt and grime that may have accumulated in the aircon unit.

How they work:

By reducing the surface tension of water, surfactants allow the cleaning solution to break through layers of dirt and grime. They are often used in combination with other chemicals to enhance cleaning effectiveness.

Benefits:

  • It breaks down dirt and grime effectively
  • Helps to clean hard-to-reach areas
  • Ensures a deeper clean

7. Deodorizing Chemicals

Deodorizing chemicals neutralize unpleasant odors caused by mold, bacteria, or accumulated dust. These chemicals leave behind a fresh scent and help improve your home’s overall air quality.

How they work:

Deodorizing agents neutralize the molecules that cause bad odors, eliminating musty, stale, or chemical smells that sometimes come from an aircon unit. These chemicals ensure your aircon blows fresh, clean air after the wash.

Benefits:

  • Eliminates bad smells
  • Leaves aircon smelling fresh
  • Improves the overall air quality in your home

8. Enzyme Cleaners

Enzyme-based cleaners are natural, non-toxic cleaners that use enzymes to break down organic matter such as food, oils, and grease. These cleaners are particularly useful in environments where non-toxic, eco-friendly solutions are preferred.

How they work:

Enzyme cleaners use specific enzymes to target and break down organic debris. They are gentle on the environment and the aircon unit while effectively cleaning components like filters, coils, and fans.

Benefits:

  • Eco-friendly and non-toxic
  • Breaks down organic matter
  • Safe for households with children or pets

What to Do If Your Aircon Has Poor Air Quality

Aircon systems are central to modern life, especially in Singapore, where the tropical climate calls for cooling solutions. They offer a reliable way to cool your space, but did you know they could also affect the air quality inside your home or office? Poor air quality can cause discomfort, exacerbate allergies, and negatively impact your health. If you notice that the aircon in your home has poor air quality, it’s essential to take immediate action to rectify the issue.

Signs of Poor Air Quality from Your Aircon

Before diving into what actions you must take, let’s first understand how to spot poor air quality caused by your aircon. Common signs include:

  • Musty or Unpleasant Odor: A foul smell from the aircon is usually a sign of mold or bacteria growth inside the unit. This is especially common if your aircon unit has been left stagnant or serviced in a while.
  • Dusty or Dirty Air: If your aircon starts blowing dust or you notice more dust accumulating in your living space, it’s a clear sign that the filters or the ducts may need cleaning.
  • Increased Allergy Symptoms: If you or your family members start experiencing more allergic reactions, such as sneezing, coughing, or itchy eyes, it may be because the air circulating through your aircon contains allergens.
  • Weak or Insufficient Airflow: If your aircon’s airflow is weak or inconsistent, it could indicate a buildup of dirt or debris in the air filters or ducts, affecting its ability to properly filter air.
  • Higher Humidity Levels: Air conditioners are designed to remove humidity. If your aircon is not effectively cooling and the humidity levels in your home seem to be high, this could be due to a malfunctioning system.

If you notice any of these issues, it’s time to address the poor air quality of your aircon.

Steps to Fix Poor Air Quality in Your Aircon

1. Clean or Replace the Air Filters

The most common cause of poor air quality is dirty or clogged filters. Air filters trap dust, dirt, and other pollutants from entering your living space, but they stop doing their job effectively when they get clogged. Over time, this can result in poor air quality being circulated in your home.

What to do:

  • Check the air filters for dust and dirt buildup. If they appear dirty, remove and clean them according to the manufacturer’s instructions.
  • If cleaning doesn’t work, replace the air filters. Depending on usage, most filters should be replaced every 3-6 months.
  • High-efficiency particulate air (HEPA) filters are better at trapping smaller particles and improving air quality.

2. Clean the Coils and Drain Pan

Another important component to check is the air conditioner’s evaporator and condenser coils. These coils can accumulate dust and grime over time, leading to a decrease in the efficiency of your aircon. When the coils are dirty, they may not absorb or release heat properly, affecting air quality and the overall cooling performance.

What to do:

  • Turn off the aircon and carefully clean the coils using a coil cleaner, ensuring that you follow the manufacturer’s instructions.
  • Ensure the drain pan is free from any standing water, which can lead to mold and bacteria growth.
  • Clean the coils once or twice yearly to ensure your aircon works efficiently.

3. Check for Mold and Mildew Growth

If you notice a musty smell coming from your aircon, mold and mildew may be the culprits. Mold thrives in warm, moist environments, making aircon systems a perfect breeding ground, especially when the system is not regularly maintained.

What to do:

  • Inspect the evaporator coils and drainage pan for any visible signs of mold growth.
  • Use an aircon cleaner or mold remover to clean any moldy areas. You may also use vinegar and water for a more natural solution.
  • If the mold problem is severe, consider calling a professional technician to handle the cleaning process.
aircon technician cleaning out aircon filters
Aircondition service cleaning

4. Clean the Ducts

Aircon ducts can accumulate dirt, dust, and other debris, restricting airflow and negatively impacting air quality. If your aircon has poor airflow and you notice dust accumulating in your home, it may be time to clean the ducts.

What to do:

  • Turn off the aircon system before you begin cleaning.
  • You can use a vacuum with a long hose attachment to clean the ducts, or you may need a specialized brush.
  • Duct cleaning can be challenging, so if you feel unsure, it’s always a good idea to call a professional duct cleaning service to do a thorough job.

5. Maintain Proper Humidity Levels

Aircons are designed to cool the air and reduce humidity levels. If your aircon is not properly regulating the humidity, it can create a perfect mold and bacteria growth environment. High humidity can also make the air feel stuffy and uncomfortable.

What to do:

  • Ensure that your aircon is appropriately sized for the room. It may struggle to control humidity if it’s too large or too small.
  • You can also use a dehumidifier in conjunction with your aircon to further reduce moisture levels in the air, especially in areas with high humidity, like the bathroom or kitchen.
  • Regularly check the humidity level using a hygrometer to ensure it stays within a comfortable range of 40%-60%.

6. Ensure Proper Ventilation

Proper ventilation is key to maintaining good air quality in your home. If your aircon doesn’t have sufficient ventilation, stale air can accumulate, negatively impacting air quality.

What to do:

  • Ensure that the air intake and exhaust vents are free from blockages.
  • Keep windows open occasionally to allow fresh air to circulate throughout your home.
  • Consider installing additional vents or using exhaust fans to improve airflow in rooms where you use air conditioning the most.
Technician Doing Regular Aircon Servicing
Technician Doing Regular Aircon Servicing

7. Regular Maintenance and Servicing

Regular aircon maintenance is essential for running the system efficiently and maintaining good air quality. Scheduling regular servicing can prevent the buildup of dust, mold, and other contaminants that degrade air quality.

What to do:

  • Call a professional aircon service technician to perform an annual maintenance checkup. This includes cleaning the components, checking refrigerant levels, and ensuring the system runs efficiently.
  • Regular servicing can help identify problems before they get worse, ensuring the longevity of your aircon system.

When to Call a Professional

While homeowners can handle some of the tasks above, others are better left to professionals. If you’ve followed all the steps and your aircon still has poor air quality, it’s time to call in an expert. A certified aircon technician can diagnose any underlying issues and provide the necessary repairs or servicing.

Signs You Should Call a Professional:

  • Persistent bad odors that cannot be eliminated by cleaning.
  • Poor airflow or inconsistent cooling.
  • Visible mold or mold growth inside the aircon unit.
  • Difficulty maintaining humidity levels or cooling efficiency.

Final Thoughts

Maintaining good air quality in your home is essential for your health and well-being, and your aircon plays a crucial role. You can significantly improve the air quality by regularly cleaning your aircon filters, checking for mold, and ensuring proper ventilation. If the problem persists, it’s best to consult a professional aircon technician who can help resolve any issues and ensure your system is running efficiently. Regular maintenance is key to ensuring your aircon performs optimally and keeps the air clean and comfortable.

Mini Portable Aircon: A Good Solution For Home Cooling?

image of a mini portable aircon. photo credits: Amazon

In a country like Singapore, where the humidity is high and the temperatures rarely dip below 30°C, an aircon system is almost necessary. While traditional aircon units provide effective cooling, not everyone has the space or needs a full-sized aircon system. This is where mini portable aircons come into play. But are they worth the investment?

Let’s explore the benefits, limitations, and best use cases for mini portable aircon units, and help you decide whether they’re the right choice for your cooling needs.

What is a Mini Portable Aircon?

A mini portable aircon is a compact, standalone cooling device that doesn’t require a permanent installation. Unlike traditional aircon units, mini portable aircons are designed to be moved easily from room to room. They typically have a smaller footprint and come with features that allow users to roll them around or set them in various spaces, such as small rooms, apartments, or offices.

These units draw warm air into the device, cool it with a refrigerant, and then blow the chilled air back into the room. Unlike window units or split systems, portable aircon units require minimal setup, making them more accessible to renters or those who don’t want to commit to a larger system.

Why Choose a Mini Portable Aircon?

There are several reasons why homeowners or office managers may opt for mini portable aircons. Let’s take a closer look at some of the key benefits.

1. Portability and Convenience

The most obvious advantage of mini portable aircons is their portability. If you move around the house often or live in a rental property, you may not want to install a fixed aircon unit. A mini portable aircon can be easily moved from room to room, offering the flexibility to cool different spaces. You can use it in the living room in the evening, then move it to the bedroom for a good night’s rest.

2. Ideal for Small Spaces

Mini portable aircon units are perfect for small spaces such as apartments, bedrooms, or offices. If you don’t have room for a bulky aircon system, these units are designed to cool just enough space without wasting energy. They are compact and unobtrusive, which is great for those living in HDB flats or condominiums in Singapore where space is at a premium.

3. No Permanent Installation Required

Another key advantage of mini portable aircons is the ease of installation. Unlike traditional aircon units, which may require drilling holes or window installation, portable aircon units can be set up easily with minimal effort. Most models only require connecting the exhaust hose to a window or vent. This makes them ideal for renters or homeowners who don’t want to deal with the hassle of permanent installation.

4. Energy-Efficient and Cost-Effective

Mini portable aircons tend to consume less energy than their larger counterparts, as they are designed to cool smaller spaces. This can lead to lower electricity bills than using a full-size aircon unit, especially if you’re only cooling a single room rather than the entire home. Many mini aircon models also come with an energy-saving mode, allowing you to reduce energy consumption further.

5. Multi-Functionality

Many mini portable aircon units have additional features like dehumidifying, air purifying, or heating capabilities. Some models have a built-in humidifier to reduce moisture in the air, which is especially useful in Singapore’s humid climate. Others can function as a space heater during cooler months, making them a versatile solution year-round.

mountainous area with cool air

Limitations of Mini Portable Aircons

While mini portable aircon units have several advantages, they also have important limitations to consider before purchasing.

1. Limited Cooling Capacity

Mini portable aircons are designed to cool smaller spaces, so they may not be suitable for large rooms or open-plan areas. They typically work best in rooms of up to 100 square feet (around 9-10m²). If you have a larger room or need to cool multiple spaces, you may need to purchase multiple units or opt for a more powerful aircon system.

2. Noisy Operation

Some users find mini portable aircon units noisy, especially when running at full capacity. While newer models are quieter than older ones, the noise level may still be an issue if you use the aircon in a bedroom or workspace where quiet is essential. The noise comes from the compressor and exhaust fan, which can be noticeable depending on the model.

3. Regular Maintenance Required

Although mini-portable aircons are easier to maintain than larger systems, they require regular care to function optimally. The filters should be cleaned or replaced frequently to prevent dirt and dust buildup. The condensate water also needs to be emptied regularly, especially if the aircon has a built-in tank. The exhaust hose should also be checked to ensure it’s properly venting warm air outside the room.

4. Limited Air Distribution

Unlike central aircon systems, which distribute cooled air evenly throughout the home, a mini portable aircon is designed to cool a single room. While you can move the unit between rooms, it doesn’t provide whole-house cooling, so it may not be suitable for larger homes or multiple rooms.

5. Smaller Cooling Area

If you’re using a portable aircon in a room with direct sunlight or poor insulation, the cooling efficiency can be compromised. The unit will have to work harder to cool the space, which could increase energy usage and reduce effectiveness.

When Should You Consider a Mini Portable Aircon?

Mini portable aircon units are ideal for specific situations. Here are a few scenarios when you should consider purchasing one:

  • Living in Small Spaces: If you live in an HDB flat or a small apartment, a mini portable aircon is the perfect solution for cooling individual rooms without taking up too much space.
  • Renting a Property: If you’re renting, you may not have the option to install a traditional aircon unit. In this case, a portable aircon lets you stay cool without violating rental agreements.
  • Temporary or Supplemental Cooling: If you need extra cooling in a room that isn’t typically fitted with an aircon, like a home office or spare bedroom, a portable aircon can provide the necessary relief without needing an additional permanent unit.
  • Seasonal Use: Portable aircon units are great for occasional use during the hot season. You can store the unit away when the weather cools down to save space.

How to Choose the Right Mini Portable Aircon

Choosing the right mini portable aircon requires careful consideration. Here are some factors to keep in mind:

  • Cooling Capacity: Check the British Thermal Units (BTU) rating to ensure the aircon is powerful enough for the space you want to cool. A unit with a higher BTU rating is more suitable for larger rooms.
  • Energy Efficiency: Look for energy-efficient models with an Energy Star rating or eco-friendly features like inverter technology.
  • Noise Level: If noise is a concern, check the decibel rating of the unit. Quieter models are ideal for bedrooms and offices.
  • Additional Features: Consider models with additional features like humidifiers, air purifiers, or heating functions if you need more than just cooling.

Final Thoughts

Mini portable air conditioners offer an excellent solution for those who need affordable, flexible cooling in small spaces. Whether you live in a compact apartment, rent, or need a supplemental cooling unit for specific rooms, a mini portable aircon can relieve the heat. While they come with limitations, such as smaller cooling capacities and the need for regular maintenance, their portability, energy efficiency, and ease of installation make them popular.

When choosing the proper mini portable aircon, consider the size of your room, your cooling needs, and your budget. With proper care and maintenance, a portable aircon can keep you comfortable during Singapore’s hot and humid days, without the hassle of traditional air conditioning systems.

Aircon No Longer Under Warranty? How To Handle Repairs

family enjoying cool air from aircon

As a homeowner or business owner in Singapore, it’s common to rely on air conditioning to stay cool and comfortable, especially during the humid months. Aircons are a significant investment, and having one break down can be stressful. What if your aircon breaks down and is no longer under warranty? Should you repair it, replace it, or let it go? Learn more about how you can address the issue without breaking the bank.

Understanding Aircon Warranties

Before diving into what to do when your aircon is no longer under warranty, it’s essential to understand what the warranty covers. Aircon warranties typically cover the following:

  • Parts replacement: If any major components like the compressor, evaporator, or condenser malfunction within the warranty period, they will usually be repaired or replaced at no extra cost.
  • Labor costs: Many aircon manufacturers cover the labor charges for repairs during the warranty period.
  • Service fees: Regular maintenance and servicing may also be included for the duration of the warranty.

However, once the warranty expires, the cost of repairs and replacements falls entirely on the homeowner. This can lead to expensive out-of-pocket costs, especially if major components need to be replaced.

What Are Your Options After Warranty Expiry?

If a warranty no longer covers your aircon, you still have several options for maintaining or replacing it. Here’s a breakdown of the most practical steps to follow:

1. Check for Common Problems First

Before you call in a technician, it’s important to check for common issues that you might be able to resolve yourself. Some issues could be simple and not require professional intervention, saving you a costly repair bill. Common aircon issues include:

  • Dirty air filters: Dirty filters can restrict airflow and reduce cooling efficiency. If your aircon is blowing warm air, cleaning or replacing the filters is the first step.
  • Clogged drainage line: If you notice water pooling around the aircon unit, the drainage line might be clogged. Clear this using a wet/dry vacuum or flushing it with warm water and vinegar.
  • Incorrect thermostat settings: Sometimes, the issue is as simple as incorrect settings on the thermostat. Make sure it’s set to the correct temperature and cooling mode.

2. Get a Professional Inspection

Even if you’ve checked for simple issues, getting a professional aircon technician to inspect the unit is always best, especially when it’s out of warranty. An expert will be able to identify underlying problems that you might miss. They can perform a diagnostic test to determine whether the aircon needs to be repaired, recharged with refrigerant, or if components need to be replaced.

Many aircon repair services offer affordable inspection fees. While this will incur a cost, it’s smart to get an accurate diagnosis before making any decisions.

3. Weigh Repair vs. Replacement

Once you know the issue, you must decide whether to repair or replace the aircon. Some factors to consider when making this decision include:

  • Age of the aircon: Aircon units have a typical lifespan of 10-15 years. If your aircon is older than that, replacing it might make more sense instead of paying for costly repairs. Newer models are more energy-efficient, saving you money in the long term.
  • Cost of repairs: If the repair costs are close to or exceed the cost of a new aircon, replacing the unit is the better choice.
  • Energy efficiency: Older units can consume more energy, increasing electricity bills. Replacing an outdated aircon with an energy-efficient model could lead to substantial savings.
  • Frequent repairs: If your aircon has required frequent repairs in the past year, investing in a new one may be more economical.
aircon tech

4. Get Multiple Quotes

Once you’ve decided to repair your aircon, getting multiple quotes from different service providers is important. Reputable aircon repair companies often offer free or low-cost quotes. Getting quotes from different service providers will give you a fair price for the repairs needed.

When comparing quotes, consider the following:

  • Reputation: Research the company’s reputation by reading reviews and testimonials.
  • Licensing and insurance: Ensure the service provider is licensed and insured. This protects you from any damages during the repair process.
  • Warranty on repairs: Some companies offer a warranty, which can give you peace of mind, knowing that any issues will be fixed at no additional cost.

5. Consider Regular Maintenance to Extend the Life of Your Aircon

To avoid issues with your aircon after the warranty expires, it must be serviced regularly. Regular maintenance can extend the unit’s lifespan and keep it running efficiently. Aircon maintenance includes cleaning the filters, checking the refrigerant levels, and inspecting the ductwork.

  • Scheduling regular service: You should schedule maintenance at least once every six months, particularly before the warmer months, to ensure the unit functions optimally.
  • What does maintenance include?: A typical maintenance visit includes cleaning the air filters, evaporator and condenser coils, checking for leaks, and testing the refrigerant level. This can help prevent costly repairs down the road.

6. Consider Upgrading to a More Efficient Model

If you’re spending more on repairs and your unit is over 10 years old, upgrading to a newer model is the most economical decision. Newer models are designed with energy efficiency in mind and can cool your home more effectively, leading to lower utility bills. Many aircon units now have advanced features like Wi-Fi connectivity, smart thermostats, and eco-friendly refrigerants contributing to lower environmental impact.

When upgrading, you should consider:

  • Size: Make sure the new unit is the right size for your space. A unit that’s too small won’t cool the area effectively, while one that’s too large will waste energy.
  • Energy efficiency: Look for units with a high energy efficiency ratio (EER) or those labeled with the Energy Star certification.
  • Budget: While upgrading may be an investment upfront, the long-term savings on energy bills and reduced repair costs can make it worthwhile.

7. Take Advantage of Professional Services for Reinstallation

If you are replacing an old aircon with a new one, it’s best to call a professional to uninstall the old unit and install the new one. Improper installation can reduce the efficiency of the aircon and cause unnecessary strain on the system, leading to additional repairs down the road. Professional installers will ensure the unit is correctly placed and calibrated to operate at its best.

Final Thoughts

Having an aircon unit break down after the warranty expires can be a stressful experience. However, knowing what steps to take can help you make the right decision. Before calling a professional, start by inspecting your aircon for common issues, such as clogged filters and faulty thermostats. Once you have a diagnosis, weigh the cost of repairs against the price of a new unit and consider upgrading if necessary. Lastly, regular maintenance can help extend the life of your aircon, saving you money in the long run.

If you’re unsure how to proceed, always contact a professional aircon technician for advice. Keeping your aircon in top shape, even after the warranty expires, will ensure that your home stays cool and comfortable for years.