Aircon Repair Singapore

Aircon Repair

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Aircon Repair in Singapore

Singapore has a very hot and humid climate which demands the extensive use of Air conditioning in the life in Singapore residents. Singapore has a tropical weather, with temperatures averaging between 26°C to 34°C and humidity levels that can reach up to 100%. As a result, aircon use in Singapore is essential.

As a result of such extensive use, it is common for aircon conditioning systems to develop faults over time due to many reasons. Here we cover some of the common reasons why aircon needs repair.

Lack of Maintenance - Regular aircon maintenance is essential to keep the unit functioning at its best. However, many people neglect this important task, leading to the accumulation of dirt, debris, and dust in the aircon, which can cause it to malfunction.

Wear and Tear - Aircons work hard to keep your rooms cool and over time some level of wear and tear is bound to happen. Components such as motors, fans, and compressors may wear out and need replacement.

Electrical Problems - Electrical issues can cause the aircon to malfunction. These can include faulty wiring, blown fuses, or malfunctioning circuit breakers.

technician repairing the aircon unit

Refrigerant Gas Leakage Air - Refrigerant gas acts as the cooling agent, so low level of gas level may blow warm air. Refrigerant gas leakage can happen the pipes, the condenser or the aircon units itself

Age - As air conditioners age, they become more susceptible to breakdowns and malfunctions. If your aircon is old, it may need repairs more frequently.

Common Indications for Aircon Repair

Some of the most common indications that your aircon needs repair include:

Poor Airflow

If your aircon is not blowing enough air or if the airflow is weak, it could be an indication of a faulty motor or clogged air filter.

Noisy Aircon

If your aircon is making unusual noises such as rattling, squeaking, or grinding, it could be an indication of a faulty motor, loose parts, or a damaged fan blade.

Foul Smells

If your aircon is emitting strange smells, such as a musty or moldy odor, it could be an indication of a clogged air filter or a mold infestation.

Water Leakage

If your aircon is leaking water, it could be an indication of a clogged drainpipe, a damaged condenser, or a refrigerant leak.

Aircon Not Cold

If your aircon is blowing warm air instead of cool air, it could be an indication of a refrigerant leak, a malfunctioning compressor, or a clogged air filter.

High Electricity Bills

If your energy bills have increased significantly, it could be an indication that your aircon is working harder than it should be due to a malfunction or a lack of maintenance.

Aircon Not Turning On or Turns Off Automatically

If your aircon fan unit or the condenser if clogged with dirt, it can result in overheating causing the aircon to switch off automatically. If you are unable to switch on your aircon then there could be several reasons which a need troubleshooting by professional technicians.

Blinking Lights

Blinking lights on your aircon can indicate several problems related to fan motor, evaporator coil or problem compressor. Refer to the user manual that came with the aircon system to understand the problem.

Common Aircon Problems We Repair

Aircons are complex machines with several parts, circuits, devices, metal/plastic frames and not to forget the refrigerant gas (R22 or 410A). So, you can imagine how many things can go wrong. Here we cover some of the most common problems you might face with your air conditioner.

What is the cost of aircon repair in Singapore?

The technician will first do a thorough investigation of the problem before starting the repair as it is important to understand the root cause of the problem. Once the investigation is complete, the technician will give you the price quotation of the repair. Sometimes buying a new aircon may be more cost effective than repairing one.

In many cases the problem can be fixed instantly with intense aircon cleaning and minor parts replacement.

After the air conditioned is fixed make sure to test the Aircon cooling, oscillation and other functions with the provide remote control before you let the technicians leave.

How to repair your Aircon - Do it yourself (DIY)

In this section we will cover how you can understand the underlying problems and fix the aircon yourself.

Aircon Error Codes & How to Fix them Yourself

In many cases a faulty aircon may issue an error code on the display. Here are some of the common error codes that you might encounter.


Indicates a problem with the indoor or outdoor temperature sensor.

Fix - Turn off the air conditioner and remove the front cover of the indoor unit. Locate the temperature sensor and gently clean it with a soft cloth. Dust and debris can accumulate on the sensor and interfere with its operation. Switch on the aircon.


Indicates a problem with the indoor or outdoor pipe temperature sensor.

Fix - Low refrigerant gas levels can cause the pipe temperature sensor to trigger an error. Check the refrigerant level and refill if necessary.


Indicates a problem with the indoor or outdoor discharge temperature sensor.

Fix - The discharge temperature sensor may also trigger an error if there are blockages in the air flow, such as dirty air filters or blocked ducts. Check and clean the air filters and remove any blockages from the ducts.


Indicates a problem with the indoor or outdoor unit's condenser.

Fix - The condenser is located in the outdoor unit of the air conditioner. Check the outdoor unit for any signs of damage or debris, such as leaves or twigs, that may be obstructing the unit. The fan in the outdoor unit may also be causing the error. Check the fan for any signs of damage or obstruction, and ensure it is spinning freely.


Indicates a problem with the unit's temperature sensor or thermistor.

Fix - If the sensor or thermistor is damaged or faulty, it may need to be replaced. Contact a professional technician to diagnose and replace the part.


Indicates a problem with the indoor or outdoor unit's fan motor.

Fix - The fan motor may be faulty, or there could be issues with the wiring or connections. If there is an obstruction or damage to the fan blades, the fan motor may be unable to spin properly, causing the error code. The "E6" error code may also indicate a problem with the air conditioner's control board. The control board may be unable to communicate properly with the fan motor or may be sending incorrect signals.


Indicates a problem with the indoor or outdoor unit's compressor.

Fix - This problem happens when the indoor and outdoor units are running in different mode. You can try to reset the aircon by switching it off and switching it back on. This may also happen if the outdoor motor or compressor is faulty.


Indicates different meanings depending on the make and model of the unit. However, it is commonly associated with a problem related to the air conditioner's indoor unit pipe temperature sensor.


Indicates a problem with the indoor or outdoor unit's communication circuit.

Fix - Ensure that the air conditioner is properly plugged in and receiving power. Check the wiring to the indoor and outdoor units for any damage and replace it if needed. Reset the aircon system by turning it off and turning it back on.

Error codes starting with F usually indicate a problem with a sensor or an underlying related problem. In most cases, you may need to replace the sensor.


Indicates a problem with the indoor unit's indoor ambient temperature sensor.


Indicates a problem with the indoor unit's room temperature sensor.


Indicates a problem with the indoor unit's heat exchanger temperature sensor.


Indicates a problem with the indoor unit's suction temperature sensor.


Indicates a problem with the indoor unit's discharge temperature sensor.


Indicates a problem with the indoor unit's water temperature sensor.


Indicates a problem with the indoor unit's outdoor ambient temperature sensor.

If the suggested troubleshooting does not help, you may need professional assistance who can repair the air conditioning. Professional technician has the right skill and equipment to accurately troubleshoot and determine the underlying cause of the aircon problem.

young couple thinking of aircon repair

Aircon is not turning on? - DIY

There may be several reasons as to why your air conditioner is not turning on. Here is what you can do!

1. Power supply - Make sure the air conditioning unit is properly plugged into an electrical outlet and that the outlet is receiving power. If the outlet isn't working, try plugging the unit into a different outlet to see if that resolves the issue.

2. Faulty Thermostat or Remote - Check if the thermostat and remote control is working properly. If the remote has no display, they may have run out of batter power. Replacing the batteries may help.

3. Circuit breaker - Check the circuit breaker to make sure it hasn't tripped. If the circuit breaker has tripped, reset it and try turning on the air conditioning unit again.

4. Faulty components: If the above steps do not help, there may be a problem with one or more components of the air conditioning unit, such as the compressor, fan motor, or capacitor. In such a case we recommend getting professional help.

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