Author: StringsSG

Considering the tropical climate of Singapore, air conditioner are play a very important role for a comfortable living. The evaporator coil is a component responsible for cooling and dehumidifying the air.

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Function of the Evaporator Coil

The evaporator coil, located inside the indoor aircon unit, is a critical part of the air conditioning system. Its primary function is to facilitate the heat exchange process, which is essential for cooling and dehumidifying the air in your home. Here’s how it works:

1. Cooling the Air: The evaporator coil contains refrigerant, a substance that can change from a liquid to a gas and back again at low temperatures. When warm indoor air is blown over the coil, the refrigerant inside the coil evaporates, absorbing heat from the air in the process.
2. Dehumidification: As the air cools, moisture in the air condenses on the coil’s surface, removing humidity from the indoor air.
3. Circulation: The now-cooled and dehumidified air is then circulated back into your home, providing a comfortable environment.

Why Clean Your Evaporator Coil?

1. Energy Efficiency: A clean coil ensures efficient heat exchange, reducing energy consumption and lowering your utility bills.
2. Improved Cooling: A clean coil allows your AC to cool the air more effectively, maintaining a comfortable indoor temperature.
3. Air Quality: A dirty coil can harbor mold, mildew, and allergens, compromising your indoor air quality. Regular cleaning helps mitigate these issues.
4. Longevity: Cleaning prevents corrosion and damage, extending the lifespan of your evaporator coil and overall HVAC system.

Cleaning the Evaporator Coil

Cleaning your evaporator coil is a task best left to professionals, but here’s an overview of the process:

1. Turn Off Power: Ensure the power to your HVAC system is switched off to prevent accidents.
2. Access the Coil: An HVAC technician will access the coil either through the air handler or furnace.
3. Cleaning Solution: A specialized coil cleaning solution is used to dissolve dirt, debris, and contaminants on the coil’s surface.
4. Rinse and Dry: The coil is then rinsed thoroughly with clean water and allowed to dry completely.
5. Reassemble and Test: After cleaning, the technician reassembles the unit and tests it to ensure it’s working correctly.

Common Evaporator Coil Problems

Despite its essential role, evaporator coils can encounter various issues over time. Here are some common problems to watch out for:

1. Freezing: If the evaporator coil becomes too cold, it can freeze. This often happens due to restricted airflow or low refrigerant levels. A frozen coil can lead to reduced cooling efficiency and potentially damage the compressor.
2. Corrosion: Over the years, the evaporator coil may develop corrosion due to exposure to moisture. Corrosion can cause refrigerant leaks, reducing the system’s efficiency.
3. Dirt and Debris: Dust and dirt can accumulate on the coil’s surface, inhibiting heat exchange. This can lead to reduced cooling capacity and increased energy consumption.
4. Refrigerant Leaks: Leaks in the coil can lead to a drop in refrigerant levels, resulting in decreased cooling performance and potentially damaging other components.
5. Mold and Mildew: Moisture on the coil can create an environment conducive to mold and mildew growth. This can affect indoor air quality and lead to health issues.

Repairing and Replacing Evaporator Coils

When you encounter problems with your evaporator coil, it’s essential to address them promptly. Here’s what you can expect in terms of repair and replacement costs:

1. Cleaning and Maintenance: Routine maintenance, including coil cleaning, can cost anywhere from $75 to $200. This is a preventive measure to keep your coil in good condition.
2. Refrigerant Leak Repair: Repairing a refrigerant leak can cost between $200 and $1,500, depending on the size and location of the leak.
3. Coil Replacement: If your evaporator coil is severely damaged or corroded, replacement may be necessary. The cost of a new coil, including labor, can range from $800 to $2,500, with factors like coil size and accessibility affecting the price.
4. System Replacement: In some cases, it may be more cost-effective to replace the entire air conditioning system, especially if the coil and other components are old and inefficient. This can cost anywhere from $3,000 to $7,000 or more, depending on the system’s size and efficiency.

In Singapore, there are several aircon servicing contractors who offer different types of service as per your requirement and budget. Most companies in Singapore offer aircon cleaning servicing, maintenance, chemical wash & overhaul, aircon repair and installation. They can also offer annual service packages for periodic aircon servicing and maintenance, which is economical.

It is important to consider their experience, reputation, the range of service they offer, pricing, and client reviews, before you choose one company over the other. It is also important to ensure that the service provider uses safe and effective cleaning methods and products to avoid damage to the unit or harm to occupants.

1. Reputation and Reviews

Start your search by checking the reputation of the company. Look for reviews and testimonials from past customers. Websites like Google, Yelp, and Facebook often have customer feedback that can provide valuable insights into the company’s quality of service. A reputable company should have a track record of satisfied customers and positive reviews.

2. Experience and Expertise

Consider the experience and expertise of the company. How long have they been in business, and do they specialize in the type of aircon servicing you require (e.g., general maintenance, repairs, chemical wash)? Companies with years of experience are likely to have a better understanding of various aircon models and issues.

3. Licensing and Certification

Ensure that the company is licensed and certified to perform aircon servicing in Singapore. This ensures that their technicians are trained and qualified to handle aircon systems safely and effectively. You can verify their credentials on the National Environment Agency (NEA) website.

4. Range of Services

Different aircon servicing companies offer various services, from routine maintenance to complex repairs and chemical cleaning. Assess your needs and find a company that offers the specific services you require. A versatile company can be a one-stop solution for all your aircon-related needs.

5. Response Time

In Singapore’s heat, a malfunctioning aircon can quickly turn your home or office into an uncomfortable place. Consider the company’s response time. Do they offer emergency services? A company that can respond promptly to your service requests, especially during emergencies, can be a lifesaver.

6. Pricing Transparency

Request detailed pricing information before you commit. Beware of companies that provide vague or hidden pricing. A reputable company should offer transparent pricing, including breakdowns of costs for different services. This transparency helps you avoid unexpected charges.

7. Warranty and Guarantee

Check if the company provides warranties or guarantees for their work. A warranty demonstrates the company’s confidence in their services and gives you peace of mind that they stand behind their work. Ensure you understand the terms and conditions of any warranty offered.

8. Safety Measures

Given the importance of safety, inquire about the company’s safety practices and protocols. Do they follow safety guidelines and have insurance coverage in case of accidents during servicing? Safety should always be a top priority.

9. Customer Service

Assess the level of customer service the company provides. Are they responsive to inquiries and requests? Friendly and helpful customer service can make your overall experience with the company more pleasant.

10. Recommendations and Referrals

Don’t hesitate to ask for recommendations from friends, family, or colleagues who have used aircon servicing companies in the past. Personal referrals can provide valuable insights and help you make an informed decision.

Air conditioning has become an essential part of our lives, especially in the scorching heat of Singapore. However, with the constant need for aircon servicing to keep our units running smoothly, the costs can add up. Enter StringsSG, a game-changer in the aircon servicing industry, offering affordable services that don’t compromise on quality.

Why aircon servicing with StringsSG is so budget-friendly

1. Data-Driven Pricing

StringsSG has revolutionized the aircon servicing market by consolidating over 11200 data points since August 2018. This extensive data collection allows them to standardize and determine the cheapest aircon servicing prices in Singapore accurately. By analyzing historical pricing trends, StringsSG ensures that customers are offered competitive rates, saving them money without sacrificing quality.

In fact, thanks to AI-driven pricing calculation, there is a very high probability of 91.2 percent that StringsSG’s pricing is the cheapest in Singapore for most aircon servicing, repair, or chemical wash services.

2. Partnering with the Best

One of the key reasons behind the affordability of StringsSG’s aircon servicing is their collaboration with some of the finest aircon contractors in Singapore. These partnerships enable StringsSG to provide customers with top-notch services. By joining forces with experienced and reputable contractors, they can guarantee a high-quality experience, ensuring that your air conditioning unit functions optimally.

3. Streamlined Operations

StringsSG takes a unique approach to support both customers and contractors. They help aircon contractors streamline their operations in several ways, ultimately reducing costs that would otherwise be passed on to the customers:

• Marketing: StringsSG takes care of the marketing efforts, promoting contractors’ services effectively. This eliminates the need for contractors to invest heavily in advertising and customer acquisition, which can be costly.
• Job Management and Scheduling: Managing appointments, scheduling, and assignment can be a time-consuming task. StringsSG efficiently handles these processes, optimizing routes and minimizing downtime for contractors. This streamlined operation means fewer expenses and more savings for customers.
• Invoicing and Accounting: StringsSG provides a centralized platform for invoicing and accounting. This eliminates the need for contractors to invest in costly accounting software or hire accountants, reducing overhead costs.
• Supply Chain Management: By consolidating resources and optimizing supply chain management, StringsSG ensures that contractors have access to quality materials and tools at affordable prices.

4. Cost Efficiency Benefits Customers

By helping aircon contractors cut down on their overall expenses, StringsSG significantly reduces the overall cost at which aircon services can be provided to customers. This means that you, the consumer, can enjoy the benefits of professional aircon servicing without breaking the bank.

Air conditioning filter or an “aircon filter”, is an essential component of any air conditioning system. Available in various types and materials, the primary function of these aircon filters is to improve the indoor air quality by capturing and removing particles of different airborne pollutants like dust, animal fur, mold spores, pollen etc. thereby keeping the air healthy. By doing this, the filters also keeps the aircon protected as it filters out various particles and contaminants present in the air that passes through it.

Aircon Filters, impacts your indoor air quality and hence it’s important to know the types, understand it’s maintenance, know it’s installation and replacement costs.

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How To Clean The Aircon Filters Yourself

Note: As the AC unit and the type of filter is not same in every household, please remember to consult your HVAC system’s user manual for specific instructions and safety precautions before starting to clean the filters. This is a must as the entire process of cleaning the filters might vary as per it’s respective type.

Tools and Materials Needed for self cleaning of the Filters

• Screwdriver
• Vacuum cleaner with a brush attachment
• Mild detergent or mild soap
• Warm water
• Clean cloth or sponge
• A well-ventilated area for drying

Steps to follow to Clean Aircon Filters:

1. Turn Off the AC: The HVAC system might get damaged and also to ensure your own safety, the air conditioner must be turned off before starting to clean or attempting to remove the filter.
2. Identify the location of the Air Filter: The location of the air filter depends on your AC unit. Usually the filter is found at the point where the return air duct enters the air handler. The filter may be located behind the air handler, grill openings or cover. Keep a screwdriver handy as sometimes, you might need to use a screwdriver to open the access panel.
3. Gently Remove the Filter: Care should be taken while removing the filter to avoid any kind of damage on it during removal. You should handle the filter gently and slide the filter out of its housing. Some needs to be lift up for it’s removal from the housing.
4. A thorough Vacuum Cleaning: A vacuum cleaner with a brush attachment will be needed for this step. The filter needs to be vacuum cleaned thoroughly so that all the accumulated dust particles and debris can be removed from both sides of the filter. This process might get a bit dirty, so ideally, the entire surface should be covered before starting to vacuum the filter.
5. Prepare a Cleaning Solution: Take a big container or a bucket, and mix a solution of warm water and a small amount mild detergent. You can also use a mild soap.
6. Immerse the Filter in the Cleaning Solution: Gently place the filter in the prepared cleaning solution in a way that it is fully immersed. Soak the filter for about 15 minutes. This will help to loosen and clean out any trapped dirt and grease.
7. Gently Scrub the Filter: Once the filter is soaked completely for 10-15mins, it’s time for scrubbing. Take a sponge or a soft cloth and gently scrub the filter on both sides to remove any stubborn stains or dirt. However, extra care should be taken in this step, as excessive pressure might cause damage to the filter.
8. Rinse Thoroughly: The next step is to rinse off the soap or detergent from the filter with clean water. It is advised to rinse with lukewarm water, until all detergent residues are removed and the water runs clear.
9. Air Dry the Filter: After the wash, it is important dry out the filter completely before reinserting it into the AC unit. If it’s not thoroughly dried before placing it back, it may lead to mold growth. So thoroughly shake off the excess water first and then allow the filter to air dry completely. Try to place it in an area where there is sunlight and air circulation for faster drying.
10. Reinstall the Filter: Once the filter is completely dry, very gently place it back into its housing. Most filters have arrows on them which should be pointing in the direction of the unit. Follow the airflow direction indicator to ensure the filter is placed properly and is oriented correctly.
11. Turn On the AC: Once the filter is reinstalled into it’s housing, you can turn on the aircon and check it’s functioning. It is better to keep the air conditioner on for the next half an hour and monitor its performance to ensure that there is no problem in it’s functioning.

Function of Air Filters

1. Improves Air Quality :

Air Filters, filters out the various airborne harmful particles, and thereby helps to purify the air. This is especially important for a healthy environment is extensively important for mankind and specially for people with some respiratory conditions like asthma, COPD, any allergies etc.

2. Protects HVAC System :

Air filters prevent particles of different airborne pollutants from entering and accumulating within the HVAC system. These air filters, keeps your HVAC unit running smoother and longer by stopping the airborne particles from entering various components of it like the coils, air handler, ductwork etc. This makes your HVAC system’s job easier, extends the lifespan of the system and reduces the need for frequent maintenance and repair. It literally is the key to having a healthy HVAC system.

3. Energy Efficiency :

Clean air filters also increases the energy efficiency. Clean air filters allow for better airflow through the HVAC system, which results in increased energy efficiency. A dirty air filter or a clogged one, makes the system work harder, to maintain the desired temperature. This extra effort leads to higher energy consumption and scales up the utility bills of the household.

4. Removes Odors And Gaseous Pollutants :

Another function of air filter is that it helps to remove odors and gaseous pollutants.

5. Comfort :

A well functioning filter, helps to maintain a soothing indoor temperature by controlling the humidity levels and thus providing a comfortable life.

Note : Depending on the type of filter and the amount of it’s usage, you should clean the aircon filters as a part of regular maintenance routine of the aircon filters. Regular Maintenance is very important for a clean and healthy air conditioner and the frequently of cleaning the filters depends on it’s usage amount. Some needs a cleaning every one to three months and some might need a more frequent attention specially during the months it’s usage is high.
It get’s easier to remember if you mark your calender with a note to clean the filter every 3 months gap.

If you follow these steps and do a regular maintenance, you can ensure that your HVAC system will operate efficiently and provide a clean and healthy indoor air.

Types of A/C Filters & Replacement Cost

1. Fiberglass Filters

These are inexpensive and disposable filters that are often used in residential settings. They are best for capturing large particles but may not be as effective at removing smaller contaminants.

Cost: $20 each

2. Pleated Filters

Made of polyester or cotton paper, pleated filters offer better filtration efficiency than fiberglass filters. They can capture smaller particles, making them a good choice for maintaining air quality.

Cost: $20 each

3. HEPA Filters (High Efficiency Particulate Air)

High Efficiency Particulate Air (HEPA) filters are known for their exceptional filtration capabilities, trapping even tiny particles. They are ideal for allergy sufferers and those who require the highest air quality.

Cost: $20 to $200 each

4. Electrostatic Filters

These filters use static electricity to attract and trap particles. They are washable and reusable, providing long-term cost savings.

Cost: $10 to $100 each

5. Washable Filters

Some filters are designed to be washable and reusable, reducing the ongoing cost of filter replacement. Washable filters are typically made of materials like foam or electrostatic materials. They require regular cleaning to maintain their effectiveness.

Cost: $20 to $100 each

Are you wondering why your aircon has stopped working suddenly? Air con can stop working because of several reason. There are certain faults you can fix by yourself and some problems might require you to get help from aircon servicing companies for professional service.

Fix It Yourself

1. Remote Control

Check if your remote control battery has run out, if yes, change the battery. If after replacing the battery the remote still does not work then use your spare remote control or get a new one.

2. Power Supply

Check if the power supply is switched on. If the power supply is switched on but the indicator on the air con doesn’t turn green, then make sure the power supply board is working properly.

3. Check the Thermostat

Check the thermostat. Make sure it’s set to the “cool” mode and the desired temperature is lower than the current room temperature. If the thermostat has dead batteries, replace them, as this simple fix can often solve the issue.

4. Inspect the Air Filter

A clogged or dirty air filter can cause your air conditioner to malfunction. A blocked filter restricts airflow, making it harder for your AC to cool your home effectively. Check the air filter and replace it if it’s dirty. This is a quick and inexpensive fix that can greatly improve your system’s performance.

5. Examine the Circuit Breaker

If your AC unit suddenly stops working, it might have tripped the circuit breaker. Check the circuit breaker panel and see if the breaker for your air conditioner has flipped to the “off” position. If so, reset it and wait a few minutes for the system to restart.

6. Inspect the Condenser Unit

The condenser unit, typically located outside your home, is responsible for expelling heat from your house. Ensure it’s clear of debris such as leaves, dirt, or debris, which can obstruct airflow and cause your AC to overheat. Clean the area around the condenser and trim any plants or bushes that may be encroaching on it.

7. Look for Refrigerant Leaks

Low refrigerant levels can impair your air conditioner’s ability to cool. If you suspect a refrigerant leak, it’s essential to contact a professional HVAC technician to repair it. Refrigerant handling requires special training and equipment.

8. Check the Air Ducts

Ductwork problems, such as leaks or blockages, can reduce the efficiency of your air conditioning system. Inspect the ducts for visible damage and seal any leaks with duct tape or mastic. If you suspect a more significant issue, it’s advisable to consult a professional.

Get Professional Help From StringsSG

You followed all the above steps but the aircon is still not working. It is time to get professional help. So click on “Get Aircon Service”. StringsSG have highly experienced professional to troubleshoot and repair any aircon related problems.