Author: StringsSG

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

Is your aircon running out of refrigerant gas too soon? If so, there is a high possibility of gas leakage from the air conditioning system.

A well functioning AC is highly essential in Singapore’s hot and humid climate as it provides a comfortable living for people. Gas leakage from your aircon system is the most dreaded problem that you may encounter, which is quite expensive to deal with. Usually there are 2 routes that you can take when dealing with aircon gas leak:

• Pressure test to identify the leakage sites.
• Replace the air conditioning system with a completely new system.

Pressure test is advised if the air conditioning system is less than 5 years old, as most parts of the aircon might still be in good functioning state. If the system is older, you may consider a full replacement. In this article we will deep dive into the details of Pressure Test.

Aircon Pressure Test Prices in Singapore

The cost of pressure tests for air conditioning systems can vary due to a range of factors that are as diverse as the systems themselves. The size and type of your air conditioner play a significant role larger or more specialized units often require more extensive testing procedures. Additionally, the complexity of your air conditioning setup is a factor because intricate systems may necessitate more time and expertise for evaluation. The frequency of servicing also influences costs as regularly maintained equipment tends to be in better condition. Moreover, the overall cost of a package can fluctuate if it includes extra services such as thorough inspections or replacement of components.

For easy comprehension, here’s a simplified version of the price chart:

Pressure Test Price

Number of Unit	Price
1	S$250
2	S$350
3	S$450
4	S$550

Gas Leakage Repair

Number of Unit	Price
1	S$400
2	S$550
3	S$650
4	S$750

How To Perform Aircon Pressure Test For Gas Leakage

1. Assemble The Required Tools

Gather the tools like refrigerant, pressure gauge and safety gear such as gloves and goggles, to get ready.

2. Shut off The Cooling System

To reduce accidents, always begin by shutting off the air conditioning system, as they create a super safe environment for well-being.

3. Locate Service Ports

Find the low-pressure and high-pressure service ports on the AC system.

4. Connect Gauge

Attach the pressure gauge to the low-pressure service port. Make sure it’s securely connected.

5. Check Pressure

Turn on the AC and observe the pressure reading on the gauge. It should fall within the manufacturer’s recommended range.

6. Watch Out for Leaks

Any abrupt reductions in the pressure gauge should be taken note of, as they may point to a leak in the system.

7. Add Freon As Needed

In case of low pressure, add refrigerant according to the manufacturer’s instructions.

8. Record Results

Note down the pressure readings and any actions taken during the test for future reference.

8. Final Checks

Once the test is complete, double-check all connections and ensure everything is back in place.

10. Turn on AC

Turn the Aircon back on and verify that it’s working correctly after the pressure test.

Benefits of Aircon Pressure Tests

1. Identify Leakage Sites

It helps to identify multiple leakages site on the aircon system which may be causing the gas leakage.

2. Extended Life of Air Conditioning Units

Your cooling system will last longer if possible problems are found and fixed early on. This will also stop needless wear and strain.

3. Improved Indoor Air Quality

Running your air conditioner at full capacity encourages the flow of clean, filtered air, which is particularly helpful for those with respiratory or allergy issues.

4. Major Failure Avoidance

By spotting little problems before they develop into larger breakdowns, you can prevent expensive repairs and ensure ongoing comfort throughout the hot months.

Tips To Prevent Gas Leakage

1. To prevent blockages and pressure on the system, clean or replace the air filters every one to three months.
2. Regularly check for refrigerant leaks to preserve energy savings and cooling efficiency.
3. For cooling purposes, set your thermostat to 78°F. For energy economy, utilize programmed settings.
4. Maintain a clear space surrounding your air conditioner, and prune any trees or other obstructions to improve ventilation.
5. Plan yearly maintenance with HVAC experts to extend the life of your air conditioner and identify issues early.
6. Reduce the possibility of water damage and system faults by maintaining debris- and blockage-free condensate lines. This will ensure efficient drainage.

It is imperative to reevaluate the requirement for an air conditioning pressure test. Although it could appear like a standard process, in practice, it frequently doesn’t offer any meaningful insights into how the system works. Rather than requiring the additional expense and complexity of a pressure test, routine maintenance and visual inspections may usually resolve the majority of air conditioning problems. Your air conditioner will operate more efficiently and last longer if you priorities preventive maintenance and take quick action to fix visible problems.

The hot and humid climate of Singapore contributes to a very high usage of air conditioning in both residential and commercial premises. With high usage air conditioning comes problems associated with the aircon units, which has resulted in the registration of numerous aircon servicing companies under ACRA Singapore (Accounting and Corporate Regulatory Authority). In Singapore, there are more than 250 aircon cleaning companies who provide various kinds of air conditioner servicing based on your requirements.

Making the right decision about which air conditioning business to use for your needs can be somewhat challenging. This article will dive into what you should be looking for in a company before you choose them for your aircon service.

1. Reputation and Experience

Seek out air conditioning businesses with a strong track record and a wealth of industry expertise. Customers are more likely to be satisfied when a firm has a track record of success, and their history in the industry speaks volumes about their dependability. To determine the company’s reputation and degree of client satisfaction, look through testimonials and online reviews and get in touch with references.

2. Certifications and Licensing

Verify that the air conditioning company is licensed and certified to operate in Singapore. Licensed experts are more likely to abide by rules and guidelines in the field, giving you peace of mind about the caliber of their job. A dedication to excellence is also demonstrated by certifications from respectable trade associations.

3. Range of Services

Think about the variety of services the air conditioning firm provides. Do they offer services for installation, upkeep, and repair? A wide range of services guarantees that you can depend on the same business for all of your air conditioning requirements, which promotes a long-term relationship.

4. Technical Expertise

Examine the technicians’ level of technical proficiency. Are they skilled and informed about different brands and types of air conditioning systems? A skilled group can precisely identify problems, suggest workable fixes, and guarantee that installations are completed precisely.

5. Energy Efficiency Focus

Energy efficiency is vital in Singapore, where environmental consciousness is high on the agenda. Seek out air conditioning firms that give energy-saving solutions first priority. This can result in long-term energy bill savings in addition to lowering your carbon footprint.

6. Customer Service and Response Time

Analyze the company’s customer service provision. Fast reaction times and clear communication are crucial, particularly in case of emergencies or urgent repairs. A business that prioritizes customer satisfaction is more likely to pay close attention to your demands and immediately resolve any issues.

7. Transparent Pricing

Make sure pricing is transparent and request comprehensive quotes. Unpleasant surprises might result from unclear cost structures and hidden surcharges. Reputable air conditioning companies will provide you detailed, itemized quotes so you can see exactly what each service will cost you.

8. Warranty and Maintenance Contracts

Check the warranty offerings on installations and equipment. Additionally, inquire about maintenance contracts, as regular servicing is essential for the longevity and efficiency of your air conditioning system. Companies that offer comprehensive maintenance plans demonstrate a commitment to the ongoing performance of your system

StringsSG partners with some of the best aircon servicing companies in Singapore to provide you with high quality aircon servicing. Once you open a request on our web or mobile platform, the platform will assign a reliable aircon service contractor who can meet your requirements and budget.