Air Conditioner not Blowing Cold Air but Running

Air Conditioner not Blowing Cold Air but Running. You were out the whole day long in the scorching summers; now you came back home, took your remote, and headed towards your air conditioner. Now you are waiting for the room to get comfortable, but things will not go according to you.

After half an hour, the temperature of your room is as it was before. Isn’t it annoying enough? As you are now aware that there is a problem with your ac, you have to take a step to cure it.

If your air conditioner not blowing cold air, you shouldn’t wait for the heat to come out of it and becomes unbearable. Any problem can be detected rightly when you are aware of the actual reason behind the issue.

In this article, we will be letting you know some of the common reasons behind the air conditioner not working properly.

We recommend you look for the mechanism of how the central ac system works; this will help you to understand the reasons more accurately.

Air Conditioner not Blowing Cold Air But Running air conditioner not blowing cold air but running (reasons)

Following are some of the common reasons behind the problem for which you are here; read all of them and troubleshoot accordingly.

Air Conditioner Clogged Filter

Filters that are unclean or clogged are another prevalent issue with AC systems. Throughout the year, these filters trap hair, lint, dust, and pollen.

If they are not replaced on a regular basis, they do not take long to refill. In this instance, the air cannot flow correctly into the house, and your air conditioner may be shut off due to a lack of air.

The internal temperature rises when the air conditioning fails to function properly.

Clogged filters can also cause parts to wear out faster than they should if they are left for an extended period.

It can also erode the evaporator coil and condenser, causing a much worse issue.

The filters should be replaced every three months, in addition to periodic cleaning. If you have pets, you may need to replace them more frequently.

You should be able to replace the room air filter on your own. However, if you are confused about which filter to use, an AC professional can assist you.

Air Conditioner Faulty Condenser or Evaporator Coilair conditioner faulty condenser or evaporator coil

The above filters do their best to keep the coils clean and functioning properly, but the coils do wear down with time.

Because of the persistent humidity, your indoor evaporator may be susceptible to mold and mildew.

Coils can also freeze if the system’s refrigerant level is low.

Problems with the coils will result in major air conditioning failures and should be investigated as soon as possible by a plumbing professional. Here is a guide on Cleaning air conditioner coils with vinegar.

Over time, the capacitor may also wear out. Check your air conditioner as well if it is not blowing cold air for any other reason.

Air Conditioner Thermostatair conditioner thermostat

If the power supply is working properly but the air conditioner is still not blowing cold air, the thermostat on the unit may not be set to the proper temperature.

Turn the knob all the way down or move the buttons all the way to the bottom to see if the unit works.

If possible, double-check that all thermostat cables and, if required, batteries are correctly attached.

Leakage of Refrigerant

Between the exterior and inside air conditioning units, the refrigerant is cycled, compressed, and expanded. It will never run out, therefore there is no need to refill or top it up.

However, if a refrigerant leak happens, it will not be enough to absorb the heat properly. As a result, you will notice a decrease in the amount of chilly air.

If you hear a hissing hiss while using the air conditioner or if it freezes, this is a sign of a problem.

Inappropriate Size of Your Device

Another reason for a portable air conditioner not blowing cold air is the size of your device. Too much or too little air conditioning wears out your system and generates a slew of issues.

This excludes the use of cold air. Unfortunately, if you do not replace your air conditioner, this problem will persist. If this is a possibility for you, we can make certain that you get the proper air conditioning the first time.

If you are unable to replace your air conditioning system right now, speak with us about regular maintenance schedules.

We may not be able to entirely address your problem, but we will do everything we can to keep you cool and comfortable.


After knowing the reasons behind this problem, you can ow easily troubleshoot it and get rid of the problem. You can maintain the quality of your power-operated devices by regularly inspecting them and not using them roughly.

You can also find guides on air conditioners not blowing cold air but running in the car at many of the internet sites.

Air Conditioner not Blowing Cold Air but Running

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