Category: HVAC Services

If you’ve ever walked into your living room only to find a suspicious puddle under your aircon, you’re not alone. Aircon water leakage is a common issue in Singapore, particularly given the humid weather and our heavy reliance on these cooling units in our HDBs, condos, and landed homes. But the good news? It’s completely preventable.

Here are the Top 7 ways to prevent your aircon from leaking water, before it turns into a costly mess.

1. Schedule Regular Aircon Servicing

Just like your car needs regular servicing, so does your aircon. Most water leaks are caused by clogged drainage systems or dirty filters—issues that can be easily avoided with routine maintenance checks.

Recommended frequency for homes in SG:

• Light usage (e.g. bedroom units): every 6 months
• Heavy usage (e.g. living room units): every 3–4 months

Hire a licensed technician to conduct a thorough inspection and, if necessary, perform a chemical wash. Not only will it keep your aircon leak-free, but it’ll also improve cooling and save energy.

2. Clean or Replace Your Air Filters

Dirty air filters are one of the biggest culprits of aircon leaks. When filters are blocked, the evaporator coil can freeze up, and when it melts, it can cause a boom. Water overflow.

What to do:

Open the front panel, gently remove the filter, and wash it under lukewarm water. Let it dry completely before placing it back in its original position. If it’s too worn out or damaged, replace it.

Pro tip: Make this a monthly habit, especially if you live near construction sites or have pets.

3. Check the Drainage Pipe for Blockages

The drain pipe (also known as the condensate line) is responsible for carrying excess moisture from your aircon to a safe discharge point. A blocked pipe can cause water to back up and leak.

Signs your drain line is clogged:

• Gurgling sounds
• Musty smell
• Water dripping down the wall or casing

What to do:

Ask your technician to vacuum or flush the drainage pipe with compressed air or a special cleaning solution during servicing.

4. Make Sure Your Aircon Unit Is Properly Installed

An unevenly installed aircon can cause water to pool inside instead of draining out. This is especially common in older HDB units or makeshift renovations in resale flats.

Key things to check:

• The back of the unit should be slightly lower than the front
• There should be no sagging brackets or tilted angles

What to do:

Hire a BCA-certified technician to inspect the installation and adjust the tilt if needed.

5. Avoid Overcooling the Room

Setting your aircon to the lowest possible temperature all night might feel shiok, but it can increase condensation. This puts unnecessary pressure on the cooling coil and drainage system.

What to do:

Set it between 24°C and 26°C with the fan mode set to “auto.” This balances comfort and efficiency without risking leaks.

6. Monitor for Mould or Algae Build-Up

Mould and algae thrive in moist environments which is exactly what your aircon drainage system provides. If not cleared regularly, they can block your drain pipe, resulting in leakage.

How to prevent it:

• Pour a small cup of vinegar or mild bleach into the drain line every few months
• Ask your technician to include a mould treatment during deep cleaning

This is especially useful in homes with high humidity or poor ventilation.

7. Keep the Room Well-Ventilated

Good airflow helps reduce moisture build-up and keeps your aircon working more efficiently. When a room is too stuffy, condensation can increase, leading to a higher likelihood of water leakage.

What to do:

• Open windows before switching on the aircon
• Use a ceiling or standing fan for better circulation
• Avoid drying clothes indoors with the aircon on

Bonus Tip: Invest in a Water Leak Sensor

If you’re staying in a condo or have expensive flooring, consider installing a leak detection sensor under your indoor unit. It alerts you the moment water is detected so you can act fast.

Psst… if you’ve already completed the steps above and the leak persists, refrain from attempting any further DIY solutions. Call a licensed aircon servicing company (preferably one from our platform).

Final Thoughts

Living in a humid country like Singapore means our aircons do much heavy lifting. But leaks aren’t something you have to live with. With just a bit of effort and regular care, you can avoid major water damage, improve air quality, and make your home more comfortable year-round.

Prevention is often more cost-effective than repair, especially when it comes to water leaks.

In Singapore, properly working aircon isn’t just a luxury; it’s a necessity. Whether you stay in an HDB flat, condo, or landed home, aircon units run almost daily to beat the island’s tropical heat. That means regular servicing is key to keeping your units in top shape.

But with so many companies offering cheap aircon servicing, it’s easy to get tempted by $18 or $20 promotions. Are these deals worth it, or could they cost you more in the long run?

Here are the top 7 ways to check if cheap aircon servicing is worth your money, and how to ensure you don’t fall for cut-price deals that compromise quality.

1. Understand What the Servicing Includes

Cheap prices often mean a stripped-down service. Before booking, always ask for clear details about what’s included.

A proper aircon servicing should cover:

• Cleaning air filters and front panel
• Flushing drainage pipes to prevent leaks
• Checking cooling performance
• Inspecting refrigerant levels
• Basic inspection of fan coils and blower

If the cheap package only mentions filter cleaning, it’s probably not enough to keep your aircon running efficiently, especially with Singapore’s constant humidity.

2. Check the Company’s Reviews

Always Google the company or check platforms like Facebook, Carousell, or even forums like HardwareZone.

Look out for:

• Consistent positive reviews from real Singapore customers
• Mentions of punctuality and professionalism
• Photos showing the servicing process
• Caution if you see multiple complaints about rushed jobs or hidden charges

A company with a strong reputation is less likely to cut corners, even if they offer affordable rates.

3. Are the Technicians Certified?

Singapore has no strict licensing requirement for basic aircon servicing, but reputable companies often employ technicians certified by:

• National Environment Agency (NEA)
• Building and Construction Authority (BCA)
• Brand certifications (Daikin, Mitsubishi, etc.)

Qualified technicians know how to service different aircon models safely, ensuring better results. If a company can’t tell you their technicians’ qualifications, that’s a red flag.

4. Beware of Hidden Charges

Low upfront prices often come with sneaky upselling tactics. Some common scenarios:

• They quote $20 for servicing, then recommend a costly chemical wash without a clear explanation
• They add “transport” or “inspection” fees after arriving
• They push for gas top-ups even if unnecessary

Always request a clear, itemised price breakdown before confirming the appointment. Legitimate companies will be upfront about all costs.

5. Service Warranty Provided?

Professional aircon companies usually provide a short service warranty — ranging from 30 to 90 days — covering artistry and immediate issues like minor leaks or unusual noises.

No warranty? That’s a sign the company isn’t confident in the quality of its work.

6. How Long Does the Job Take?

A rushed job often means poor service. For standard aircon servicing, technicians typically spend:

⏱️ 15 to 20 minutes per unit for proper cleaning

⏱️ Longer if they check the refrigerant, drainage pipes, and test the cooling system

If your technician finishes in under 10 minutes per unit and doesn’t test the aircon after, chances are they skipped essential steps.

7. Are You Getting a Service Report?

After servicing, reliable companies provide a summary of:

• What was cleaned
• Cooling performance after servicing
• Any issues found and suggested repairs

If the technician packs up and leaves without explanation, you probably didn’t get proper servicing, no matter how low the price.

The Risks of Low-Quality Aircon Servicing

Going for the cheapest option without proper checks may lead to:

• Reduced cooling efficiency
• Higher electricity bills
• Persistent water leaks
• Unpleasant smells or poor air quality
• Aircon breakdowns requiring costly repairs

In the long run, a $20 deal can easily turn into a $200 problem.

How Much Should Aircon Servicing Cost in Singapore?

As of 2025, here are the average market rates:

Service Type	Estimated Price (Per Unit)
General Servicing	$25 – $40
Chemical Wash	$70 – $120
Chemical Overhaul	$140 – $170
Gas Top-up	$80 – $150

Many companies offer discounts for multiple units, which is common for HDBs and condos with 3 to 5 aircon units.

When Is It Okay to Go Cheap?

If:

• You only need very basic filter cleaning
• You’ve done recent deep cleaning (chemical wash)
• The company is reputable and transparent about pricing

A cheaper servicing package can be worth it for quick maintenance, but if your aircon is leaking, noisy, smells bad, or isn’t cold, basic servicing won’t fix the problem. You’ll still need more thorough work.

Final Thoughts

In Singapore, aircon servicing is crucial for comfort and efficiency. Cheap aircon servicing can be worth it if:

• It comes from a reliable company
• The service is clearly defined
• You only need light, routine maintenance

But don’t blindly go for the lowest price. Check reviews, ask questions, and look for signs of professionalism.

Remember, a slightly higher price upfront often saves you from costly repairs, higher electricity bills, or an unexpected aircon breakdown later.

In Singapore’s hot and humid climate, having a working aircon isn’t a luxury, it’s a necessity. Whether you live in an HDB flat, a condo, or a landed property, chances are your aircon is working overtime to keep you cool. But many homeowners overlook one crucial thing: regular aircon servicing.

Think of your aircon like your car. You wouldn’t drive it endlessly without servicing it, right? The same logic applies. Regular aircon servicing keeps your unit running efficiently, helps you save money, improves indoor air quality, and prevents costly breakdowns.

Here’s everything you need to know about why aircon servicing in Singapore is so important, how to monitor your aircon for problems, and when to call the experts.

Why Aircon Servicing Is So Important for Singapore Homes

1. Saves You Money in the Long Run

A well-maintained aircon doesn’t have to work as hard to cool your space. This means lower electricity bills, which is especially helpful with Singapore’s rising energy costs. If your aircon is clogged with dust or its components are worn out, it draws more power to produce the same amount of cooling, which shows up in your monthly bill.

2. Keeps Your Aircon Running Efficiently

Regular aircon cleaning ensures filters, coils, and other components are cleaned and functioning well. When everything works as it should, your aircon cools your home faster and more efficiently, even during the peak afternoon heat.

3. Prevents Unexpected Breakdowns

A breakdown during Singapore’s sweltering months is every homeowner’s nightmare. Routine servicing helps catch small issues like refrigerant leaks, clogged filters, or worn-out parts before they snowball into bigger, more expensive problems.

4. Improves Indoor Air Quality

Dirty air filters and components can harbour dust, bacteria, and mold (not ideal for your family’s health). This is especially important in Singapore, where many homes are closed up with little natural ventilation. Regular servicing helps your aircon circulate clean, fresh air.

5. Prolongs the Lifespan of Your Aircon

Aircons aren’t cheap, and replacing them is a significant expense. Regular servicing ensures your unit lasts as long as possible, giving you better value for your investment.

How to Monitor Your Aircon for Potential Problems

Even with regular professional servicing, keeping an eye (and ear) on your aircon is good. Here are common warning signs to look out for:

1. Weak Cooling

If your aircon doesn’t cool your space as effectively as it used to, it could indicate clogged filters, low refrigerant levels, or a mechanical fault.

2. Strange Noises

Unusual sounds like banging, hissing, or grinding are red flags. These noises could point to loose parts, debris build-up, or refrigerant leaks that require professional attention.

3. Water Leaks

If you notice water pooling below your aircon or dripping from the unit, there may be a blocked drainpipe or a full drainage tray.

4. Bad Odours

A musty or foul smell coming from your aircon is a tell-tale sign of mold or bacteria growing inside the system — not something you want circulating in your home.

5. Higher Electricity Bills

A sudden spike in your utility bill, without any increase in usage, often signals your aircon is working inefficiently. Which means, it’s only time to book that servicing appointment!

How Often Should You Service Your Aircon in Singapore?

The frequency depends on how often you use your aircon and where you live:

Usage	Recommended Servicing
Light Use (e.g., 1-2 times a week)	Every 6 months
Moderate Use (e.g., daily, nights only)	Every 3-4 months
Heavy Use (e.g., daily, day & night)	Every 2-3 months
Commercial or Office Aircons	Monthly or based on technician advice

Most households benefit from servicing HDB flats or condo units every 3-4 months, especially if the aircon runs nightly. If you have multiple units or live in a landed property, coordinate servicing for all units to optimise efficiency.

When to Call a Professional Aircon Technician

While basic maintenance like cleaning filters can be done yourself, certain tasks require an expert’s touch:

• Strange noises or smells from the unit.
• Persistent water leaks.
• Weak or no cooling despite correct settings.
• Regular servicing is overdue.
• You suspect a refrigerant leak.

Tip: Avoid DIY repairs for complex aircon problems. Tampering with electrical components or refrigerant can be dangerous and may void your warranty.

What Happens During a Professional Aircon Servicing?

A typical servicing session includes:

✔️ Cleaning of air filters, front panel, and cover.

✔️ Vacuuming of drainage system to prevent leaks.

✔️ Checking fan motor, blower, and electrical connections.

✔️ Inspecting refrigerant levels and cooling performance.

✔️ Testing the aircon to ensure everything runs smoothly.

Consider a chemical wash or overhaul for more thorough maintenance, especially for older or heavily-used units.

Final Thoughts

Your aircon works hard to keep your home cool and comfortable, so it deserves some TLC in return. Regular servicing keeps your cooling system running efficiently, protects your family’s health, reduces electricity costs, and prevents inconvenient breakdowns.

Living in Singapore’s tropical climate means your aircon is likely running daily. Don’t wait until there’s a problem… book regular servicing and enjoy peace of mind all year round!

In Singapore’s sweltering heat, your aircon is more than just a luxury; it’s a daily essential. But constant use and poor maintenance can cause your aircon to overheat. When that happens, it can result in poor cooling performance, higher energy bills, expensive repairs, or a complete system breakdown.

If you want to keep your home cool and your aircon running efficiently, prevention is key. In this guide, we share with you the top seven practical tips to help prevent your aircon from overheating and ensure it performs at its best for years.

1. Clean or Replace Air Filters Regularly

Clogged air filters are one of the most common causes of aircon overheating. In Singapore’s humid climate, dust and dirt build up quickly. When the filters are blocked, airflow is restricted, forcing the aircon to work harder to circulate cool air.

Check your air filters at least once a month. If they appear dirty, clean them under running water and let them dry completely before reinstalling. Consider replacing filters every few months for homes with pets, smokers, or frequent aircon use.

2. Keep the Outdoor Unit Clean and Unobstructed

Your aircon’s outdoor condenser unit is crucial in releasing heat from the system. If the condenser coils are covered with dust, leaves, or other debris, heat cannot escape efficiently, causing your aircon to overheat.

It’s crucial to,

• Inspect the outdoor unit regularly.
• Clear away leaves, dust, and any debris.
• Maintain at least one metre of clearance around the unit for proper ventilation.

In Singapore’s high-rise apartments, where space is tight, ensure balcony plants, laundry racks, or furniture don’t block the airflow.

3. Schedule Regular Professional Servicing

Even with DIY cleaning, there are areas of your aircon you can’t easily access. Over time, dirt builds up inside components like the evaporator coils and fan motor, contributing to overheating.

Book professional aircon servicing at least once every 6 months. During servicing, the technician will clean internal components, check for signs of wear, and ensure your aircon is running optimally.

4. Consider a Chemical Wash for Deep Cleaning

If regular servicing isn’t enough, a chemical wash can help remove stubborn dirt, bacteria, and mold that build up deep inside your aircon.

When the system is clogged, airflow is restricted, forcing the motor and compressor to work harder, leading it to overheat.

Arrange for a chemical wash every 12 to 18 months, especially for older units or those not serviced regularly. It’s a deep cleaning process where components are dismantled and thoroughly cleaned with specialised solutions to restore cooling efficiency.

5. Maintain Proper Ventilation Around Your Aircon

Indoor and outdoor units need adequate ventilation for your aircon to cool efficiently. Poor ventilation can trap heat inside the system, causing it to overheat.

These could help:

• Keep curtains or blinds closed during peak sunlight to reduce the room’s heat load.
• Ensure the aircon’s vents and grilles are not blocked by furniture or large objects.
• Avoid placing the outdoor unit in a confined or poorly ventilated space.

Good ventilation means your aircon doesn’t have to work overtime to keep your space cool.

6. Monitor for Early Warning Signs

Overheating rarely happens suddenly. Your aircon often gives warning signs before serious damage occurs. The key is to recognise these signs early and act before it worsens.

Look out for these overheating indicators:

✔️ Warm air blowing from the vents.

✔️ Frequent system shutdowns.

✔️ The outdoor unit feels excessively hot.

✔️ A buzzing or humming sound from the compressor.

✔️ Unusual spikes in your electricity bill.

If you notice any of these, switch off your aircon immediately and call a professional for inspection.

7. Don’t Overwork Your Aircon

Running your aircon non-stop or setting the temperature to the lowest possible setting may seem like a good way to beat the heat—but it puts immense strain on the system. This constant strain leads to overheating, higher energy consumption, and faster wear and tear.

You can,

• Set your aircon to an energy-efficient temperature of around 24-25°C.
• Use a fan alongside your aircon to help circulate cool air.
• Turn off your aircon when you leave the room.
• Give the system short breaks throughout the day to prevent overuse.

If your aircon is too small for your space, it will sometimes struggle to cool effectively, leading to overheating. Speak to a technician to ensure your aircon is correctly sized for your room.

Bonus Tip: Upgrade When Necessary

Older aircon units overheat more frequently due to worn-out components and outdated technology. Consider an upgrade if your aircon is over 10 years old and constantly overheating despite maintenance.

Modern aircons are designed to be more energy-efficient, quieter, and better equipped to handle Singapore’s tropical climate without overworking.

Final Thoughts

Preventing aircon overheating isn’t just about keeping your home cool, it also saves you money, extends the lifespan of your system, and prevents unnecessary breakdowns.

By following these seven tips — cleaning filters, maintaining the outdoor unit, scheduling regular servicing, opting for chemical washes, ensuring proper ventilation, spotting warning signs, and avoiding overuse — you can enjoy efficient, reliable cooling all year round.

If your aircon still shows signs of overheating despite your efforts, don’t delay. Call a trusted aircon technician in Singapore to diagnose the issue and get your cooling system back on track.

Looking for reliable PRISM+ aircon servicing in Singapore? At StringsSG, we specialize in comprehensive PRISM+ aircon maintenance, repair, and cleaning to keep your cooling system running efficiently. Our team of skilled and certified technicians is experienced in handling all models of PRISM+ air conditioners, ensuring optimal performance, energy efficiency, and long-term durability.

Whether you need a general aircon servicing, chemical wash, or urgent aircon repair, we provide prompt and professional solutions tailored to Singapore’s climate and housing needs. Book your PRISM+ aircon service easily online and enjoy cool comfort with peace of mind.

General Aircon Service Pricing

StringsSG offers the most affordable and transparent aircon servicing pricing in Singapore.

One-Time Servicing

No. of Aircons	Pricing
1 AC unit	SGD 43.24
2 AC unit	SGD 51.34
3 AC unit	SGD 65.50
4 AC unit	SGD 79.67
5 AC unit	SGD 89.24
more than 5	Open a request

Annual Package

No. of Aircons	4 times/year	3 times/year
1 Units	SGD 167.77	SGD 125.83
2 Units	SGD 197.13	SGD 147.85
3 Units	SGD 248.92	SGD 186.69
4 Units	SGD 299.57	SGD 224.68
5 Units	SGD 331.97	SGD 248.98
more than 5	Open a request	Open a request

Gas Top-Up Pricing

Gas Type	Price (SGD)
R22	SGD S$40 – S$100
R410A	SGD S$90 – S$150
R32	SGD S$120 – S$220

Aircon Chemical Wash Pricing

Ensure your air conditioner is clean and germ-free with our annual chemical wash. Learn more about Basic Chemical Wash & Overhaul

Chemical Wash Price

No. of Aircons	Pricing
1 AC unit	SGD 77.28
2 AC unit	SGD 150.70
3 AC unit	SGD 206.72
4 AC unit	SGD 262.75
5 AC unit	SGD 318.78
more than 5	Open a request

Chemical Overhaul Price

No. of Aircons	Pricing
1 AC unit	SGD 145.36
2 AC unit	SGD 283.45
3 AC unit	SGD 388.84
4 AC unit	SGD 494.22
5 AC unit	SGD 599.61
more than 5	Open a request

Our 6-Step Aircon Servicing Process

At StringsSG, we follow a proven 6-step approach to general aircon servicing in Singapore — ensuring your unit runs efficiently and reliably.

1. Air Filter & Front Panel/Cover Cleaning

Dirty air filters can block airflow and strain the aircon. Technicians clean or jet-wash filters to restore optimal airflow.

2. Cleaning of Evaporator Coil

The evaporator coil can collect dirt, reducing efficiency. The technician cleans it using a soft brush or vacuum.

3. Drain Pan or Tray Cleaning

Clogged drain pans may lead to leaks. Technicians clean out debris from the pan to ensure proper drainage.

4. Vacuuming of Drainage Pipe

To prevent water backup, the drainage pipe is vacuumed to remove blockages that may disrupt water flow.

5. Outdoor Condenser Check

Technicians assess the outdoor unit’s performance and recommend cleaning if necessary, based on inspection or customer request (extra charges may apply).

6. Monitor Refrigerant Gas Level

Technicians check the refrigerant gas level if poor cooling is observed or upon client request, and may recommend top-up if needed.

Watch the Step-by-Step Servicing Video

Service Warranty

Enjoy comprehensive workmanship warranty coverage with every Prism+ aircon service. We’re committed to quality and stand behind our work, so you can stay cool and worry-free.

Latest Prism+ Aircon Models in Singapore

While PRISM+ air conditioners are built with cutting-edge technology for reliable cooling and energy efficiency, occasional error codes can occur due to environmental or operational factors. Understanding these common error codes can help users troubleshoot minor issues or know when to book a service.

Here are some of the most frequently encountered PRISM+ aircon error codes and their meanings:

• E1 – Indoor Unit Fault
  This usually points to issues with the indoor unit’s sensors or PCB (Printed Circuit Board). A quick reset may help, but persistent errors should be inspected by a professional.
• E5 – Communication Error
  This code signals a disruption between the indoor and outdoor units. Loose wiring or PCB faults are common causes and require technical diagnosis.
• F0 – Low Refrigerant or Refrigerant Leak
  When your PRISM+ aircon displays F0, it often indicates a refrigerant-related issue. This affects cooling efficiency and should be addressed promptly.
• H3 – Compressor Overload
  Caused by high temperatures, dirty filters, or power supply issues, this error protects the compressor from damage. Routine servicing helps prevent this.
• U8 – Indoor Unit and Outdoor Unit Connection Error
  Often due to voltage fluctuations or installation issues. This code may appear during startup and usually requires a service check.

Note: Panasonic aircon error codes may vary depending on your unit’s model and series. If you encounter one of these codes, our licensed technicians can help diagnose and resolve the issue quickly and safely.

Why These Codes Matter
Ignoring error codes can lead to higher energy bills, poor cooling performance, and even long-term damage. PRISM+ recommends periodic maintenance to ensure smooth operation and to catch potential issues early.

Need Help with an Error Code?
Our experienced PRISM+ servicing team in Singapore is equipped to diagnose and resolve all system alerts efficiently. Whether it’s a simple reset or a component replacement, we’ll restore your aircon’s performance quickly and affordably.

An aircon chemical overhaul is a more intensive version of chemical cleaning, designed for heavily clogged or underperforming units. It involves complete dismantling of the system and deep-cleaning each component individually using specialized chemicals.

Here are the 9 essential steps followed by professionals during a chemical overhaul:

1. Inspection and Preparation

The process begins with a careful inspection of the aircon unit:

• The technician checks the cooling efficiency, noise levels, airflow, and visible dirt accumulation.
• Protective sheets are laid out to cover your flooring and nearby furniture to prevent any water or chemical splashes during the overhaul.
• The electrical power to the unit is safely turned off.

2. Full Dismantling of the Aircon Unit

In a chemical overhaul, the entire fan coil unit (FCU) is removed from the wall:

• The technician disconnects the electrical connections and drainage pipe.
• The aircon casing, fan blower, and evaporator coil are separated completely from the indoor wall.
• This allows complete access to internal components that are usually unreachable during a standard wash.

🛠️ This step requires experience and should only be done by trained professionals to avoid damage.

3. Disassembly of Components

With the unit taken down, all internal parts are carefully dismantled for separate cleaning:

• Evaporator coil (cools the air)
• Blower wheel (circulates air)
• Drain pan (collects condensation)
• Fan motor and casing

Delicate components such as the PCB (circuit board) are safely covered or removed before chemical treatment.

4. Intensive Chemical Cleaning

Each part is soaked or sprayed with a high-strength chemical solution designed to:

• Break down grease, mold, and hardened dirt
• Eliminate bacteria, dust mites, and allergens
• Restore original airflow and cooling performance

Components are then rinsed thoroughly with water to remove chemical residues and allowed to dry completely.

5. Drainage System Flushing

A clogged drainage pipe is a leading cause of water leakage:

• The technician flushes the drainage system using a pressure pump or manual method to remove clogs.
• Algae, slime, and mineral buildup are cleared, ensuring smooth water flow during operation.

⚠️ Severely blocked pipes may require additional service and charges.

6. Outdoor Condenser Servicing

The outdoor unit, often neglected, is thoroughly cleaned:

• Fins and coils are brushed or vacuumed to remove leaves, dirt, and dust.
• A light water jet may be used to clean the fan and exterior.
• Condenser cleaning improves heat dissipation and reduces the compressor’s workload.

7. Lubrication of Fan Bearings

After cleaning, fan bearings and motor components are lubricated to ensure smooth rotation and reduce friction:

• This helps eliminate humming or squeaky noises.
• Prevents premature wear and tear of moving parts.

8. Refrigerant Gas Level Check

Using pressure gauges, the technician checks the refrigerant gas level:

• If it’s too low, your aircon won’t cool effectively.
• If a leak is suspected, further testing may be required.
• Gas top-up is usually charged separately and done only if needed.

9. Reinstallation and Performance Testing

Once all parts are cleaned and dried:

• The unit is reassembled and securely mounted back on the wall.
• All electrical and drainage connections are reattached.
• A final test is conducted to ensure:
  • Cold air is blowing properly
  • Drainage is smooth
  • The unit is quiet and vibration-free

You’ll immediately notice improved cooling, reduced noise, and cleaner-smelling air.

Why Opt for a Chemical Overhaul Over Regular Servicing?

Chemical Wash	Chemical Overhaul
Partial cleaning	Full disassembly
Keeps unit clean	Restores like-new performance
Less time-consuming	Longer duration (60–90 mins)
For light-to-moderate dirt	For heavily clogged or old units