If you are fortunate enough, or perhaps unfortunate enough, to live in a country with a warm or hot climate, you will very likely have an air-conditioning unit, and will probably rely on it to keep you cool during hot summers. Even those who live in hot countries are not immune to the negative effects of stifling heat, contrary to what people believe. The human body can only withstand so much heat before it begins to display the symptoms of conditions like heat stroke, which is worth mentioning, is very, very dangerous.
Air-conditioning units are, for many, a frontline preventative measure to falling sick. Because of that, it is important the moment that they break down that you have them repaired – it is also important that you are able to identify why your air-conditioning unit might not work.
In this article, as our title may have given away, we will tell you six reasons why your air-conditioning unit may be running but not circulating cool air.

Dirty Air Filter

The most common reason for an air-conditioning unit not circulating cool air and thankfully the most easily solved is a dirty air filter. If you have a dirty air filter, you need only take the filter off and give it a good scrub. You should make this a regular habit of yours and should aim to clean your filter at least twice weekly if you use your air-conditioning unit every day. You should also regularly replace your filter.

Thermostat Settings

Another incredibly common and easily solvable reason why air-conditioning units do not circulate cold air is that the thermostat is set to on but not auto. It is an easy fix, and then according to the air-conditioning experts from AZComfortExperts.com, you will be able to sit back and enjoy your air-conditioning comfortably all summer. You may also find that your thermostat is set to a higher temperature if it doubles as a heating unit. To be honest, the first thing you should check if your air-conditioning unit is circulating warm or lukewarm air is the thermostat!

Outer Unit

If your outer unit is caked with dirt, it’s very likely your unit will circulate hot air. This is a job for a technician, especially if your unit is high up on the roof of your home, as many are. An outer unit can become dusty, dirty, and grimy through repeated use, for it is outside, and because of that, is exposed to the elements. If your outer unit is dirty you will find your unit does circulate hot air – it is an easy fix and a technician should be able to clean that right up for you.

Broken Motor

If the motor on your unit is broken, unfortunately, you’re buggered as they say in England. You will have to have the motor replaced by a technician – you cannot do it yourself. In some cases, you may even have to have your unit replaced, which means forking out an absolute fortune to replace your unit. A broken motor is one of the worst things that can happen to your air-conditioning unit – but with that said, this can be easily fixed.

Refrigerant

Your refrigerant is a liquid contained within your air-conditioning unit that enables your air-conditioning unit to absorb cool air. If your refrigerant is low, your unit will blow out warm air. This is an easy fix and a job for a technician. To avoid your unit getting to this stage and circulating warm air you can have your unit serviced regularly. The amount your unit should be serviced, of course, depends entirely on how much you use it. If you use it daily, you should have it checked at least every few months. Refrigerant, thankfully, isn’t the end of your unit. Our next point, however, well that’s a different story…

Compressor

Like your motor, your compressor is a vital part of your air-conditioning unit and it is essential for it to run properly. If your air-conditioning unit’s compressor has given up on you, you will need a replacement. Only a technician can do this for you, as with the motor, and it’s important to have this done right away. Your compressor failing can be an absolute nightmare and if you do not fix it, it can eventually give way and your unit may need a total replacement.
In this article, we hope to have explained six reasons why your air-conditioning unit may be circulating warm air. We thank you very much for reading this article and we hope you will come back and join us soon.