The need for an authentic and reliable report relating to the repairs and rehabilitation of a faulty air conditioner is inevitable.  The fact that many people use the air conditioner to cool the temperature in their respective home and offices make its maintenance a top priority to every individual in order to avoid huge expenditure in the repairs of the system.

This report gives insight into the relevance of an air conditioner, the history, the working principle and the general maintenance one is expected to carry out for the effective performance of the air conditioner.  It also includes the report on the faults discovered with the repair work carried out in the project.

Subsequently, advanced information pertaining to the repairs involving a faulty air conditioner has been given in this report; this will benefit those interested in the repairs of the faulty air conditioner in future.


Title page

Letter of transmittal


Approval page




Table of contents


1.    Introduction

2.    History of refrigerating machine

3.    Significance of study

4.    Limitation of study


1.    Literature review

2.    Air conditioning maintenance

3.    Preparation for repairs

4.    Fault detection and repairs

5.    Precaution taken

6.    The working principles of air conditioner

7.    Air conditioning application

8.    Component parts of air conditioner

9.    Sequence of operation




1.    Conclusion

2.    Recommendation




    All most all the countries in the tropical are faced with one problem of air or the other.  Ranging from not being content with the moisture, the relative humidity of the air and its cleanliness.

These air problems can cause a lot of discomforts especially in the places of work, which consequently reduces the working efficiency of an individual.

The problems of air led engineers and scientist to look into methods of bringing comfort to people, which gave birth to the invention of air conditioners.  Air condition sucks in air in the room and purifies it, and then heat and cool and supply them back to the room by the process of heating, cooling, humidifying, dehumidifying, filtering, cleaning, distribution through the help of a blower in the air condition.

It has been in operation for a long time but most users prefer new modern air conditioner due to the modern technology introduced in it.  Today pure air purification can be made possible by the use of an air conditioner.


Air conditioning can about as a result of water-soaked mat that was hung across window and doors to produce cooling system by evaporation during hot dry weather.

WILLIAM THOMPSOM, who later became LORD KELVIN, contributed immensely to the development of refrigeration, some of his other works included the absolute temperature scale, the law of conservation of energy etc.  However, it was WILLIS CARRIER who conducted the research which when published in 1911, gave the foundation on which to days air conditioner was built.

In the early stage of its invention, the air conditioner was a hazard because of the explosive or poisonous nature of the refrigerants in use then.  It was in 1928 that suitable refrigerants were discovered and used for more effective air conditioning.  This led to a high increase in demand and expansion in air conditioning equipment.


This study shows how important an air conditioning unit is at home.  The study proffers a concise guide to relevant steps of maintenance, what to do in order to discover a fault in the air conditioner and how to remedy the situation.


We are expected to explore all avenues and ways to find the sample and proper procedure in repairing the air condition given to us as our study, without any exception or delineated areas left out.  Basic maintenance of all types should be the basis of this study.



RESEARCHWAP.COM is an online repository for free project topics and research materials, articles and custom writing of research works. We’re an online resource centre that provides a vast database for students to access numerous research project topics and materials. guides and assist Postgraduate, Undergraduate and Final Year Students with well researched and quality project topics, topic ideas, research guides and project materials. We’re reliable and trustworthy, and we really understand what is called “time factor”, that is why we’ve simplified the process so that students can get their research projects ready on time. Our platform provides more educational services, such as hiring a writer, research analysis, and software for computer science research and we also seriously adhere to a timely delivery.


Please feel free to carefully review some written and captured responses from our satisfied clients.

  • "Exceptionally outstanding. Highly recommend for all who wish to have effective and excellent project defence. Easily Accessable, Affordable, Effective and effective."

    Debby Henry George, Massachusetts Institute of Technology (MIT), Cambridge, USA.
  • "I saw this website on facebook page and I did not even bother since I was in a hurry to complete my project. But I am totally amazed that when I visited the website and saw the topic I was looking for and I decided to give a try and now I have received it within an hour after ordering the material. Am grateful guys!"

    Hilary Yusuf, United States International University Africa, Nairobi, Kenya.
  • " is a website I recommend to all student and researchers within and outside the country. The web owners are doing great job and I appreciate them for that. Once again, thank you very much "" and God bless you and your business! ."

    Debby Henry George, Massachusetts Institute of Technology (MIT), Cambridge, USA.
  • "I love what you guys are doing, your material guided me well through my research. Thank you for helping me achieve academic success."

    Sampson, University of Nigeria, Nsukka.
  • " is God-sent! I got good grades in my seminar and project with the help of your service, thank you soooooo much."

    Cynthia, Akwa Ibom State University .
  • "Great User Experience, Nice flows and Superb functionalities.The app is indeed a great tech innovation for greasing the wheels of final year, research and other pedagogical related project works. A trial would definitely convince you."

    Lamilare Valentine, Kwame Nkrumah University, Kumasi, Ghana.
  • "Sorry, it was in my spam folder all along, I should have looked it up properly first. Please keep up the good work, your team is quite commited. Am grateful...I will certainly refer my friends too."

    Elizabeth, Obafemi Awolowo University
  • "Am happy the defense went well, thanks to your articles. I may not be able to express how grateful I am for all your assistance, but on my honour, I owe you guys a good number of referrals. Thank you once again."

    Ali Olanrewaju, Lagos State University.
  • "My Dear Researchwap, initially I never believed one can actually do honest business transactions with Nigerians online until i stumbled into your website. You have broken a new legacy of record as far as am concerned. Keep up the good work!"

    Willie Ekereobong, University of Port Harcourt.
  • "WOW, SO IT'S TRUE??!! I can't believe I got this quality work for just 3k...I thought it was scam ooo. I wouldn't mind if it goes for over 5k, its worth it. Thank you!"

    Theressa, Igbinedion University.
  • "I did not see my project topic on your website so I decided to call your customer care number, the attention I got was epic! I got help from the beginning to the end of my project in just 3 days, they even taught me how to defend my project and I got a 'B' at the end. Thank you so much, infact, I owe my graduating well today to you guys...."

    Joseph, Abia state Polytechnic.
  • "My friend told me about ResearchWap website, I doubted her until I saw her receive her full project in less than 15 miniutes, I tried mine too and got it same, right now, am telling everyone in my school about, no one has to suffer any more writing their project. Thank you for making life easy for me and my fellow students... Keep up the good work"

    Christiana, Landmark University .
  • "I wish I knew you guys when I wrote my first degree project, it took so much time and effort then. Now, with just a click of a button, I got my complete project in less than 15 minutes. You guys are too amazing!."

    Musa, Federal University of Technology Minna
  • "I was scared at first when I saw your website but I decided to risk my last 3k and surprisingly I got my complete project in my email box instantly. This is so nice!!!."

    Ali Obafemi, Ibrahim Badamasi Babangida University, Niger State.
  • To contribute to our success story, send us a feedback or please kindly call 2348037664978.
    Then your comment and contact will be published here also with your consent.

    Thank you for choosing