Signs Your Aircon Needs an Aircon Chemical Wash Immediately

Maintaining an air conditioning unit is essential for comfort, efficiency, and durability, especially in regions with frequent AC use where neglect can lead to reduced efficiency and health risks from bacteria and mould. One often overlooked maintenance task is the aircon chemical wash, which thoroughly cleans the unit using a chemical solution, targeting internal components like coils and filters to remove stubborn dirt and microbial growth.

The benefits of a chemical wash are numerous: it restores efficiency, leading to more effective cooling and lower power consumption, thereby enhancing comfort and reducing electricity bills. It also improves air quality by eliminating harmful microbes and blockages, safeguarding health, and extending the unit’s lifespan by preventing corrosion and wear.

Incorporating a chemical wash into your aircon maintenance routine is an investment in performance, durability, and overall well-being.

Sign 1: Reduced Cooling Efficiency

When your air conditioning system begins to falter in its cooling efficiency, it’s a glaring indicator that maintenance is overdue. Here’s how dirt and debris impact your unit’s performance:

  • Impaired Air Flow: Dust and debris accumulation can obstruct the air filters, leading to reduced airflow and compromised cooling efficiency.
  • Blocked Cooling Coils: The cooling coils, essential for transferring heat out of your home, can become coated with grime, drastically reducing their effectiveness.
  • Increased Energy Consumption: As the aircon struggles to cool your space, it consumes more energy, leading to higher utility bills.
  • Overworking the System: Contaminants make the aircon work harder than necessary, which can lead to wear and tear, reducing the lifespan of the unit.

A chemical wash can rejuvenate your aircon by meticulously cleaning these critical components, ensuring your system operates smoothly and efficiently.

Sign 2: Unpleasant Odours

The emergence of unpleasant odours from your air conditioning unit is a distressing sign that should not be ignored. Here’s why these odours occur and how a chemical wash can help:

  • Mould and Mildew Growth: The dark and moist environment inside your aircon is ideal for the growth of mould and mildew, which can produce musty or damp smells.
  • Bacterial Build-up: Over time, bacteria can accumulate in the water tray and ducts, leading to foul, sour odours that are circulated throughout your home.
  • Decomposing Organic Matter: Leaves, pollen, and other organic materials can get trapped inside the unit, decomposing and emitting bad smells.

A chemical wash addresses these issues by thoroughly cleaning the internal parts of the aircon, such as the coils, water trays, and ducts, using specialised solutions that eliminate mould, mildew, and bacterial build-up. This process not only removes the source of the odours but also ensures that the air circulating through your home is clean and fresh.

Sign 3: Increased Energy Bills

A noticeable surge in your energy bills, despite consistent usage patterns, can often be traced back to a struggling air conditioning system. Below we delve into how a dirty aircon leads to increased energy consumption and how a chemical wash can mitigate this issue:

  • Reduced Efficiency: Dirt and debris clogging the aircon’s filters and coils impair its efficiency, forcing it to work harder and longer to cool your space, thus consuming more energy.
  • Strain on Components: When aircon components like the compressor are forced to work overtime due to reduced airflow and heat transfer efficiency, they draw more power, increasing energy consumption.
  • Thermal Insulation: A thick layer of dirt on the coils acts as insulation, hindering the unit’s ability to expel heat effectively, further reducing efficiency and increasing energy usage.

Undergoing a chemical wash can dramatically reverse these effects. This deep cleaning process meticulously removes all forms of buildup from the aircon’s internal components, ensuring they operate as intended. By restoring the unit’s efficiency, a chemical wash can help lower monthly energy bills, providing a more cost-effective and environmentally friendly cooling solution.

Sign 4: Strange Noises Coming from the Unit

Unusual sounds emanating from your air conditioning unit are not only disturbing but indicative of underlying issues that need immediate attention. Here’s a closer look at the causes and the remedial action through a chemical wash:

  • Obstructions and Blockages: Dirt, debris, and even small animals can find their way into your aircon, leading to blockages that cause rattling, buzzing, or whistling sounds.
  • Component Malfunction: Lack of cleaning and maintenance can lead to the malfunction of internal components, such as the fan or compressor, resulting in grinding, squealing, or knocking noises.
  • Loose Parts: Accumulated grime can lead to parts becoming loose or misaligned, contributing to a variety of unexpected sounds during operation.

A chemical wash is a comprehensive solution that addresses these noise issues by thoroughly cleaning the aircon’s internal mechanisms. This process involves the removal of dirt and debris that may cause blockages or affect the unit’s components, ensuring everything operates smoothly and quietly. By preventing the buildup of contaminants, a chemical wash also helps avoid the loosening or malfunctioning of parts, thereby extending the lifespan of the unit and maintaining a peaceful, cool environment.

Sign 5: Frequent Overheating

Frequent overheating of your air conditioning unit is a serious concern, signalling imminent risk to its functionality and durability. This issue often stems from neglected maintenance, particularly regarding the cleanliness of vital components:

  • Clogged Filters and Coils: The accumulation of dirt, dust, and other particulates in the filters and coils restricts airflow and impedes heat dissipation, causing the unit to overheat as it struggles to maintain cooling efficiency.
  • Strained Components: Overheating can put excessive strain on the aircon’s compressor and other critical components, leading to wear and tear that significantly shortens their lifespan and potentially results in costly breakdowns.
  • Efficiency Decline: As the unit overheats, its ability to cool efficiently diminishes, leading to a cycle of overcompensation, further overheating, and increased risk of malfunction.

Implementing a chemical wash as a preventative measure can avert these overheating issues. This detailed cleaning process effectively removes the buildup from filters, coils, and other internal parts, ensuring unobstructed airflow and optimal heat exchange. By maintaining the cleanliness of these components, a chemical wash not only enhances the unit’s cooling performance but also prevents overheating, thereby avoiding unnecessary repairs or replacements and extending the life of the air conditioning system.

The Chemical Wash Process Explained

A professional chemical wash of your air conditioning unit involves a meticulous, step-by-step procedure designed to thoroughly clean and rejuvenate the system. Here’s how experts like Jingyit Aircon Servicing do it, along with the safety measures they follow and the benefits of opting for professional servicing:

Step 1: Inspection and Assessment

  • A professional technician starts by inspecting the aircon to identify any specific issues and determine the extent of cleaning required.

Step 2: Disassembling the Unit

  • Carefully dismantling the aircon to access internal components like the filters, coils, and drain pan. This step is crucial for a comprehensive clean.

Step 3: Chemical Wash

  • Applying a specially formulated chemical solution to dissolve dirt, grime, mould, and bacteria on the evaporator coils, filters, and other internal parts.
  • The chemical solution is thoroughly rinsed off after soaking, ensuring no residue is left behind.

Step 4: Clearing the Drainage System

  • Flushing the drainage pipes with chemicals to remove blockages and ensure smooth water flow, preventing leaks and water damage.

Step 5: Reassembling and Testing

  • After a thorough clean, the aircon is reassembled and tested to ensure it operates smoothly and efficiently, with no leaks or noises.

Safety Measures

  • Professionals wear protective gear to prevent exposure to harmful chemicals and debris.
  • They ensure that the chemical solutions used are environmentally friendly and safe for indoor environments.
  • Electrical safety is paramount; technicians ensure the unit is completely powered off before starting the wash process.

Benefits of Professional Servicing

  • Expertise and Efficiency: Professionals have the knowledge and tools to perform the job quickly and effectively, avoiding potential damage to sensitive components.
  • Enhanced Air Quality: A thorough clean removes health hazards like mould and bacteria, improving the air quality in your home.
  • Preventative Maintenance: Regular professional chemical washes can prevent future breakdowns, saving money on costly repairs and replacements.
  • Warranty Preservation: Using professional services helps maintain your unit’s warranty, ensuring any future issues are covered.

Opting for a professional chemical wash service ensures your air conditioning system receives the care it needs to operate at peak performance, providing comfort and efficiency for years to come.

DIY vs Professional Chemical Wash

While the idea of conducting a chemical wash on your air conditioning unit by yourself might seem cost-effective, it’s important to understand the risks involved and why hiring a professional might be the better choice.

Risks of DIY Chemical Washes

  • Chemical Exposure: Without proper knowledge and protective gear, handling the chemicals used in the wash can pose health risks.
  • Potential Damage: Incorrect application of chemicals or dismantling of the unit can lead to damage of sensitive components, affecting the aircon’s efficiency and possibly voiding the warranty.
  • Incomplete Cleaning: DIY attempts may not thoroughly clean all components, leaving behind dirt and bacteria that can continue to affect the air quality and efficiency of the unit.
  • Safety Hazards: There’s a risk of electrical shock or causing a short circuit if the unit is not correctly handled or if water comes into contact with electrical components during the cleaning process.

Advantages of Hiring a Professional

  • Expertise: Professionals have the training and experience to safely and effectively conduct a chemical wash, ensuring every part of the unit is thoroughly cleaned without damage.
  • Appropriate Tools and Chemicals: Technicians use industry-grade chemicals and equipment designed specifically for aircon cleaning, which are effective and safe for your home environment.
  • Comprehensive Cleaning: A professional service includes a detailed assessment and cleaning of not just the filters and coils but also the drainage system, ensuring the unit operates efficiently.
  • Safety: Professionals adhere to strict safety standards, using protective gear and following protocols to avoid chemical mishaps or electrical accidents.
  • Warranty Preservation: Many aircon warranties require professional servicing to remain valid. DIY maintenance might void this warranty, leading to potential issues.

In summary, while a DIY chemical wash might seem appealing, the risks and potential for incomplete cleaning make it a less favourable option. Professional cleaning services like those offered by Jingyit Aircon Servicing ensure a thorough and safe chemical wash and preserve the integrity and efficiency of your air conditioning unit, making it a wise investment for the long-term maintenance of your home’s cooling system.


In summary, the critical signs indicating your air conditioning unit needs an immediate chemical wash include reduced cooling efficiency, unpleasant odours, increased energy bills, strange noises, and frequent overheating. These symptoms suggest that dirt, debris, and microbial growth impair your unit’s performance and efficiency.

To ensure the longevity and optimal operation of your air conditioning system, it is paramount to schedule a professional chemical wash. This service not only addresses the immediate issues but also prevents future problems, ensuring your air conditioner continues to provide clean, efficient cooling.

Jingyit Aircon Servicing offers a comprehensive chemical wash solution for those seeking expert aircon maintenance. With a team of experienced professionals with the right tools and knowledge, Jingyit ensures your aircon unit receives the best possible care, enhancing its performance and extending its lifespan. Don’t let your aircon suffer from neglect – choose Jingyit Aircon Servicing for aircon chemical wash, thorough and safe cleaning that guarantees peace of mind and cooling efficiency.