14 Reasons for AC Not Cooling Properly | How to Fix AC Not Cooling Guide 2018

AC Not Cooling Properly? Voltas AC Not Cooling Well? Is Your Air Conditioner Working But Not Cooling?



Reasons for AC not cooling properly and how to how to fix air conditioner not cooling guide 2018

We all are familiar with the problem of AC not cooling or AC not blowing cold air into the room and this can be very frustrating when it happens during the unbearable summer season.


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Get all your AC not cooling problems solved by the best AC Repair Professionals from Quotemykaam. We help you making your summers cool and happy. Book AC Repair Services from Quotemykaam for air conditiner not cooling problem and have a hassle free experience at your doorstep.


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There can be many reasons for AC not cooling properly or AC not providing optimum cooling into the room. Read to know about the most common top 14 reasons for air conditioner not cooling well and how to fix each one of them.

Why Air Conditioner is not Cooling Properly?

Below are the major 14 reasons listed for AC not cooling Enough:


Top 14 Reasons Behind AC Not Cooling in Detail & How to fix the AC

1. Ice formation in AC

ice formation in ac
Image source: coolday.com


One of the main reasons behind air conditioner is not cooling properly is ice formation in split ac indoor unit or window AC as it leads to the reduction of air flow.

Problem :

Dirty filters, coils and below par working fans are the major reasons for ice formation on air conditioners. Regular air flow inside your air conditioner is necessary in order to maintain the temperature of cooling coil above freezing point. But if this airflow gets disrupted due to dirty filters or coils then lot of moisture gets stock up inside the air conditioner which in turn results ice formation in split ac indoor unit.


Solution :

So, to avoid this problem, all you need to do is clean your air filter from time to time. Read more about what causes ice to build up on an air conditioner.


2. AC Gas Leak or Low Refrigerant Level

ac gas leak problem. Image Source-coolant angies list

Problem :

Low refrigerant level is one of the major and common problems for your window AC not cooling enough or Split AC not cooling enough. The purpose of coolant is to circulate through the evaporator coils and cool the air flowing over it and thus sends cool air into the room.

There can be basically 2 reasons behind Insufficient refrigerant level problem:

  • AC gas leakage problem
  • Devaluation of AC gas with time

Both of them causing the air conditioner not cooling properly.


Solution :

For AC gas filling or ac gas top-up you require professional help who will find why air conditioner not cooling and repair the ac gas leak and then refill the ac refrigerant in the AC unit.Get your air conditioning maintenance done at regular intervals for hassle free summers.

Feel free to contact Quotemykaam.com for AC Gas Filling Services at your doorstep.


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3. Degrading Of Air Conditioner with Time

degradation of air conditioner with time


Problem :

Just like humans even machines tend to lose their efficiency with age. The older your air conditioner the lesser will be its efficiency which will reduce its cooling capacity. According to ASHRAE ( American Society of Heating, Refrigerating and Air Conditioning Engineers ), an AC reduces its efficiency by 7% in the 1st year, 5% in the 2nd year and 2% every year in the following years.

For Example, if an air conditioner is 20 yrs older or more, then its efficiency of cooling might be decreased by 40%. So older your AC then lesser is the efficacy.


Solution :

The best solution to the problem “why air conditioner is not cooling“ can be time to time regular servicing of AC as it will surely extend the age of your air conditioner.

AC Servicing


4. AC Fan Not Working

Reason behind ac fan not working
Image source: Angieslist.com


Problem :

When there is some defect in ac fan or its blades are damaged then it may result in ac is working but not cooling problem. As the outside fan is responsible for transmitting heat from your house to outside air. If the outside fan doesn’t perform correctly it will end up overheating the AC compressor and proper heat transfer will not take place resulting in air conditioner blowing hot air problem.


Solution :

Check that the blades are not damaged. If blades are damaged than a well qualified AC repair technician will be needed to identify and resolve the problem.


5. Clogged Air Filters

blocked ac filters


Problem :

Clogged air filter is one of the main reasons behind ac not cooling enough. Clogged air filter prevents the air from flowing properly through the air conditioner which blocks the functioning of your AC unit.

The improper flow of air restricts or limits the cooling capacity of your AC resulting in air conditioner not cooling enough.


Solution :

Try to clean the filter to remove the wet remains from the air filter. It is recommended that you clean your air conditioner filter every two weeks. But if you think that it’s not possible to clean the air filter then you can have them replaced.


6. Dirty Coils

dirty coils in air conditioner


Problem :

If your air conditioner not cold enough, the condenser coils might be dirty. As we know, in all air conditioners, the condenser plays the role of radiator that dissipates heat. In order to dissipate heat outside the condenser coil must be thoroughly clean.

So, if the coil is dirty, the heat isn’t dissipated outside completely which prevents the AC unit from getting cold enough and it will not be able to cool the room.


Solution :

Solution to what to do when ac is not cooling problem is that, the condenser coil must be cleaned regularly. As the coils get dirtier day by day, the air conditioner becomes less efficient, as a result, cooling power of AC is reduced.


7. AC Compressor not Working or Defect in AC Compressor

ac compressor not working problem


Compressor is the most important part in your air conditioner “Heart of AC”, which is responsible for cooling your room. No air conditioner can work without AC compressor; it is the heart of your home’s air conditioning system.

Problem :

An AC compressor moves the refrigerant through the machine, cooling your home in the process and if it stops working then your AC will not provide cooling at all. So if your ac is not cooling then the compressor might be damaged.

Also, there can be other problems related to compressor such as – voltas ac compressor not starting, split ac compressor not working, ac compressor working but not cooling, window ac compressor not turning on, ac compressor not working.


Solution :

It should be repaired ASAP by a AC repair professional. Any fault in AC compressor will lead to stopping of cooling process in AC unit, as the compressor will not be able to circulate the refrigerant/coolant through the evaporator & condenser coils and thus AC will fail to cool.


8. Faulty Thermostat or Incorrect Thermostat Setting

how to change ac thermostat settings


Thermostat functions to sense the temperature of the room and then sends the signal to AC compressor to either start or stop the cooling cycle.

Problem :

In case there is a fault in thermostat then the signal will not be sent to compressor which will lead to AC not cooling at all or it may keep cooling continuously. Also incorrect setting of the AC thermostat can be the reason your split or window AC is not cooling.


Solution :

Try to change AC thermostat setting from “Auto” mode to “On” mode. Even after changing the mode does not solved the problem, than the thermostat needs to be replaced. Read more about air conditioner troubleshooting.


9. Fault in AC Parts

how to replace faulty parts in ac


Problem :

Another reason for ac not cooling could be a defective part in AC unit which is not letting AC to blow cold air. There could be fault in motor, capacitor or the condenser might be broken or it can be due to defective control board, etc.


Solution :

Faulty parts need to be replaced or repair. Hire an experienced professional to fix this for you.


10. Undersized AC

what should be the size of ideal ac


While buying an AC, one of the most important things you should ask yourself is how big an air conditioner do you need for your room.

Problem :

If a small air conditioner is installed in a huge room then it will get difficult for AC to cool the room in summers when the temperatures are extremely high.


Solution :

For an AC to cool your room at an optimum level it is very necessary that size of AC is according to the size of your room.


11. Incorrect AC Installation

how to install ac properly

Problem :

If the air conditioner has not been installed properly then it can lead to defect in AC parts or leaking of AC refrigerant or water dripping out of AC; all of these will consequently result in AC cooling problem.


Solution :

So to avoid this, always hire a professional AC mechanic who knows the job well. Quotemykaam has a team of verified and expert AC installation professionals who can install your AC perfectly at best rates.


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12. Faulty AC Remote

faulty air conditioner remote


Problem :

Is your voltas ac remote not working properly? If your AC remote is not working and not sending the temperature change signals to air conditioner, then also the AC stops cooling.


Solution :

You can simply get the AC remote replaced with like LG Split AC Remote, Daikin U-DK AC Remote, Samsung AC Remote or Universal AC Remote, via online mode from reputed websites like amazon or flipkart.


13. Direct Sunlight On Air Conditioner Outdoor Unit

how direct sunlight affects the air conditioner


It is one of the common reason for ac not cooling and sometimes we neglect it which in turn hampers the cooling capacity of AC.

Problem :

If the outer part of Window AC or the outdoor unit of Split AC is coming in direct contact of sunlight and there is excessive rise in surrounding temperature, then the cooling efficiency of air conditioner gets affected and sometimes after a point AC compressor stops work. Read more about Direct sunlight on air conditioner outdoor unit problem.


Solution :

So, whenever you are getting your AC installed, always make sure the outer part or unit is not directly facing the sun.


14. Poor Efficiency

reasons for poor efficiency of air conditioner
Image source: Time.com


Problem :

As the heat intensifies, we tend to overuse the air conditioner to keep our homes and offices cool which can adversely affect the efficiency of an air conditioner. An air conditioner collects dust and debris during operation which gets deposited in the ac unit preventing it from cooling your room properly.


Solution :

It is always recommended to have AC maintenance services on a regular basis so that your air conditioner provides you optimum cooling all summer. Thus, getting professional AC servicing once in 3 months is always necessary as it ensures the proper functioning of your air conditioner and it’s parts.

As this scorching heat is going to intensify day by day, a proper ac cooling prevents heat-related illnesses allowing us to sleep more comfortably at night, and it protects the interior of our houses as well. It removes the heat and the humidity from your room to make it much more comfortable.


Also, we all agree that there is nothing more relaxing than coming into a fully air-conditioned room from this unbearable heat. So, if you want to enjoy the optimum cooling of your ac continuously, make sure you take timely actions to avoid all the ac cooling problems stated above.


There will be times when you won’t be able to fix the ac cooling problem and would require professional help.

Quotemykaam is one of the best and reputed service providers for AC gas filling and AC repair services all over India. We have a team of well trained and highly qualified AC repair professionals who will dig into the problem of why your AC is not cooling properly and fix it to the core.



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Why AC is not Cooling ? 14 Reasons for AC Cooling Problem & How to fix AC not Cooling
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Why AC is not Cooling ? 14 Reasons for AC Cooling Problem & How to fix AC not Cooling
AC not cooling is one of the most common problems we face with our air conditioners. So, here we have listed 14 major reasons for AC not cooling properly and what steps you can follow to get the AC cooling problem fixed. Whether its Voltas ac not cooling, Daikin split ac not cooling enough, ac running but not cooling house, Samsung ac not cooling, ac not blowing cold air, this article will help you to understand your AC unit better and the reasons behind air conditioner not cooling.
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14 Reasons for AC Not Cooling Properly | How to Fix AC Not Cooling Guide 2018

One thought on “14 Reasons for AC Not Cooling Properly | How to Fix AC Not Cooling Guide 2018

  • July 16, 2017 at 2:35 pm

    What’s up, all is going well here and ofcourse every one is sharing data, that’s genuinely fine, keep up writing.

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