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14 Reasons Why Your Aircon Is Not Cold And How You Can Fix It

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(Last Updated On: September 25, 2020)

Knowing why your installed aircon is not cold enough and the ways on how to fix it will keep you comfortable during warm days. For this, your air conditioner must be circulating cold air as efficiently as possible especially when the heat is overwhelming.

Besides ensuring that your home is as refreshing as possible, knowing why your aircon is not cold and how to repair it can help you avoid other common aircon issues. Furthermore, you’ll be able to shorten the time amount required for servicing. So with that, here are some causes of aircon not being cold and how to resolve it.

 

Reasons Why Your Aircon Is Not Cold

  1. Low on Aircon Gas

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The coolant liquid used for cooling the warm air in the room, which is pumped by the AC’s compressor into the evaporator coils, is a refrigerant that is refilled by an aircon gas top up. If the aircon does not seem to be cold enough, this could be one of the reasons

  1. Clogged Air Filter

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One of the main functions of aircon servicing companies is to clean the air filter of debris. If your air filter is blocked, cold air will not be able to pass through easily. You can remove the unit cover and clean the air filter yourself. If this does not work, call an aircon company to do this for you.

  1. Filthy Condenser Coils

Dust and other residue can build up on the aircon’s condenser if it is installed outside. As such, it is vital that you clean it regularly so that its ability to freshen absorbed heat is not affected. Dirty coils only decrease your unit’s efficiency which makes it unable to circulate cold air.

  1. Clogged Evaporator

The evaporator is a critical component of air conditioners and once they develop issues, chances are you are going to be doing some air conditioner repair soon after. Regular aircon servicing, at least once a year, with a chemical overhaul goes a long way in preventing the build-up of dust or debris in the aircon or in some cases when the evaporator coil freezes.

  1. Leakage of Coolant or Refrigerator

In relation to low aircon gas, it might not be that is a low level, but because the coolant has been leaking out. This is an aircon emergency and must be attended to quickly by a professional aircon company.

  1. Faulty Thermostat

The thermostat regulates the performance of the aircon so when there is a problem with your manual or programmable thermostat, your aircon will not be able to regulate to the desired temperature. This means that your aircon will not be cold as it does not work properly. When you have such issues, you should call an experienced aircon repair company in Singapore to help you with the repairs.

  1. Faulty Capacitor

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Most window aircons use a capacitor to start the compressor. If the capacitor is faulty, the aircon will not be cold and may start blowing warm air. This component is located inside the unit and may require a disassembly to reach. If there are no visible signs of damage on the capacitor, it does need to be checked by a professional with aircon repair tools.

  1. Damaged Ductwork

The inability of an installed aircon to blow out cold air can also be caused by damaged ductwork as a result of perforation or blocking. When this happens, air can spread out unevenly or may not even be released at all.

  1. Faulty Printed Circuit Board 

Check the Printed Control Board (PCB). It works in conjunction with the thermistor as it monitors the air temperature and sends power to the compressor. Therefore, if damaged, it can cause a general malfunction of the aircon unit. However, it is important to first check the thermistor before condemning the PCB assembly.

  1. Damaged Thermistor

If your aircon is an electronic control model, check the thermistor, located in the airflow though the evaporator coils. If the component shows signs of damage or corrosion, a thermistor replacement is in order.

  1. Damaged Compressor

Though not very common, a damaged compressor can also prevent your aircon from blowing out cold air. This is because it prevents the condenser from spreading refrigerant between the inner and outer units.

  1. Broken Fan

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If your aircon is able to blow out cold air but does not seem to distribute it in the right directions, it is possible that its fan might be damaged. You can confirm this by inspecting the indoor unit and listening for any signs of buzzing. You may also use a screwdriver to open it provided you don’t damage any other aircon parts. If the fan motor is damaged, the aircon will not blow out cold air.

  1. Frozen Condenser Unit

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When the condenser of your aircon unit is frozen, the aircon will not work well and will seem to be that the aircon is not cold enough. Carrying out aircon maintenance and repairs will help you to prevent this from happening reduce money spent on aircon repair bills.

  1. Incorrect Size

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Many people buy aircons without knowing what size of the air conditioner relative to the size of the room they want to cool. This ends up leading to a situation where the aircon is not powerful enough to sufficiently keep the room at a cool temperature and so most may feel the aircon is not cold enough.  This also leads to aircon being overworked and breaking down faster.

These are some problems causing the aircon not to be cold. Some of these problems can be solved on your own. Here are some steps you can take to solve some of the issues listed. They can also help prevent similar problems happening in the future.

 

How To Fix Your Aircon Not Cold Problems

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If you have a Mitsubishi or Daikin aircon which is not cold enough but think that no parts have been damaged, here are some ways to get it working again.

Check If Aircon’s Thermostat Is Working Properly

Sometimes, the aircon installed might be unable to release cold air due to a simple thermostat problem. So, check if your aircon has been set to your desired temperature and feel free to adjust it accordingly.

Inspect Your Aircon’s Circuit Breakers

If turning on your aircon causes a power trip, inspect the circuit box. Wiring issues can cause both the indoor and outdoor unit to stop functioning properly. In that case, call an aircon maintenance company to do aircon wiring repair as soon as possible.

Clean Your Aircon Unit’s Filters

Dirty or clogged aircon filters are among the primary reasons for why an aircon is not cold enough. Moreover, it can lead to other aircon issues like an aircon leak which can increase power consumption. So make sure to clean your aircon’s filters regularly to ensure optimal comfort while also avoiding high electric bills.

Check for Signs of Ice Buildup Inside Your Aircon

Another possible reason for why your aircon is not cold enough is ice buildup within the unit. This usually happens when the fan blower belt deteriorates and incurs damage. In that case, engage an air conditioning service to replace it so that the issue is resolved

 

How To Avoid Aircon Not Cold Issues

Most aircon manufacturers claim that a good inverter or non-inverter aircon should be able to last for a long period of time. So here are some ways to ensure that your unit remains durable for the long term:

  • Ensure the aircon unit undergoes periodic maintenance, preferably once a year. Such maintenance normally consists of component replacement, cleaning, and standard aircon repairs.
  • Even if your installed aircon is not currently experiencing any issues, be sure to have it inspected monthly. That way, it can function optimally for as long as possible.

 

Conclusion

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You can take the steps mentioned to try and troubleshoot the problems. If you are uncomfortable with doing them yourself, always approach a professional service provider. If you’re looking for a service provider to attend to all your aircon needs, then we highly recommend you contact DW Aircon Singapore. We provide a wide range of aircon services at reasonable prices. So, in case you experience any aircon issues, be sure to contact us at once.

DW Aircon Servicing Singapore provides an extensive range of Aircon Services including Aircon Servicing, Aircon Repairs, Aircon Installation of best aircon brandsChemical Overhaul, Gas Top-up, Aircon Leaking Water, and Aircon Not Cold Fix and more. We have a team of professional technicians who are equipped with vast knowledge and experience in the Aircon industry. We have over 10 years of experience in dealing with aircon works and have completed thousands of aircon works for both residential (Landed, Condo, and HDB) and commercial. We are a highly recommended Aircon Company in Singapore, with many delighted customers and reviews over the years on Google and Facebook. WhatsApp us at +65 8241 0032 for transparent quotation and honest pricing for all your aircon needs or Call us at +65 6653 2988 . We offer a fast and efficient service to serve any of your aircon needs!

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DW Aircon Servicing Singapore offers complete aircon servicesincluding reliable aircon servicingaircon repairaircon installationaircon chemical washaircon cleaning and aircon gas top up. We focus on aircon servicing and offer aircon promotion with competitive and cheap aircon servicing prices. We also offer aircon maintenance and servicing contracts. We have a team of experienced aircon servicing technicians with over 10 years experience. We are the highly recommended aircon servicing team specializing in air conditioning services in Singapore. Call us now for a best quality aircon services at +65 6653 2988 !