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Why is My Daikin Aircon not working? How to solve it?

The Daikin air conditioning system is a popular choice because it has the ability to cool the home or office without any noise. However, sometimes it can be difficult for homeowners to troubleshoot issues that arise with the system. And many people are asking the question of why my Daikin aircon is not working. There are various reasons why your Daikin aircon may not be working. It could be because you have not cleaned or maintained it properly, there could be an error code on the panel, or it could just be a power outage in your area. Here we guide you on why Daikin aircon might not work as well as expected and how you can troubleshoot them.

Is Daikin Aircon Not Working? 

If your aircon is not working, It might be caused by electricity or Refrigeration leaks, etc.,  Whatever the problem arises in your aircon, You should hire a technical expert to solve the issue professionally. 

Top reasons why daikin aircon is not working :

The main reason for the aircon not working problem occurs is considered two types of issues. 

  • Aircon Not Maintain 
  • Aircon Reached Near 10 Years

The two types of reasons only can create a lot of aircon troubles, so that we might lose our aircon and spend more money etc., In this blog, we will guide you about this issue and How to overcome it. 


Aircon issues 99% might come from poor maintenance of the aircon. Aircon is one of the most important appliances in Singapore. It helps us cope with the hot weather and stay cool during our day-to-day activities. However the aircon is very Important in the Singapore region, right? so we should maintain our aircon properly to prevent all major aircon issues. But if you neglect the issue, then automatically your stop their performance and also give big problems like Dirty filter & Evaporator coil, Faulty thermistor, Unexpectedly parts breakdown, Water and gas leakage, Compressor repair, etc., 

Dirty Filter & Evaporator coil 

The regular aircon performance will collect more dirt from outside so that the airflow might be affected (aircon not cold). The dirt will form in the filter and coil , so that we could not get efficient cooling as we expect from the air. So you should do regular aircon service to get always fresh and faster cooling performance without any blockages and also we could sense the clean air too.


Faulty Thermistor 

A faulty thermistor can cause the aircon to stop working. It is important to know how to identify a faulty thermistor so that you can replace it with a new one when needed.

A faulty thermistor is a common issue that many people face with their aircon. The thermistor is the sensor that helps regulate the temperature of the air in your room. If it malfunctions, then there will be a problem with your system’s ability to cool your room and maintain the desired temperature.

Note : If your aircon thermistor is faulty, then  you should call an expert for help. The reason for this is because fixing a faulty thermistor can be quite dangerous if you don’t know what you are doing. You could end up making it worse and cause more damage than good if you try to fix it. So can take expert advice and help to solve the issue professionally. 

Unexpectedly parts breakdown 

Without maintenance of the aircon, the chance to break the parts like blower, fan motor, thermistor, etc., So that we could not get aircon effective performance and also might have to spend a lot of money to replace the parts. The expert advice is to do aircon servicing at least 3 to 4 months once to avoid major aircon issues and save the aircon from big troubles. 

Air conditioner water leak is a common problem that can be caused by the following reasons:

  • Loose connection in the air conditioner drain pipe.
  • Loose connection in the water supply pipe.
  • Damaged air conditioner drain pipe.
  • Damaged water supply pipe.
  • Defective valve or pump that controls the operation of the air conditioners

The aircon gas leak happens when there is an issue with a pressure valve or an air compressor that causes gas. The most common reason for an Aircon gas leak is a loose connection in one of these pipes: gas line, refrigerant line, or filter drier line.

Compressor repair

 There are many reasons for the aircon compressor fault. 

  • The most common reason is that the compressor is overloaded. 
  • The second reason is that there is a gas leak in the system. 
  • The third reason is that there are too many refrigerant leaks in the system and so on.

Here we will introduce some tips for you about how to identify an aircon compressor fault and how to prevent it from happening again.

A compressor can fail for a number of reasons, including:

  1. A leak in one or more seals that keep refrigerant contained inside the compressor.
  2. A faulty bearing which causes friction between moving parts and leads to overheating.
  3. The use of incorrect oil or insufficient oil which can cause premature wear on parts.
  4. Damaged wiring or electrical components which may lead to short-circuiting, sparking and eventual failure.

Hope now you can get an idea about why the aircon is not working. The suggestion is for good performance it should maintain the aircon by aircon servicing. The regular aircon service will solve all major aircon issues, so we could get better performance and save our costs by preventing the issue.


Aircon service could save the aircon and their performance for long years but If aircon almost reached to near 10 years, the suggestion is you should replace the aircon to get newly efficient aircon performance. Because the old aircon doesn’t give efficient performance and might face a lot of issues consistently. And could not do any chemical cleaning service to save the aircon because the aircon lost their parts efficiency. So If your aircon is not working by reaching above 10 years, you should replace it and save a lot of repair cost. (Aircon Installation)

We are the best aircon servicing company and we provide all types of aircon service and troubleshooting with the help of experienced technicians. For more details and help from technical experts.

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