How Does An Air Conditioner Work? — Appliance Repair Tips

Published on Jun 30, 2012 887,344 views

Air conditioner not cold enough or leaking water? This video provides information on how a window air conditioner works and offers troubleshooting tips to assist you in diagnosing and repair.

Here is a list of the most commonly replaced parts associated with each air conditioner symptom:

Air conditioner not cold enough: air filter, compressor, thermostat, thermistor
Air conditioner fan not working: drive motor, fan motor, relay board
Air conditioner compressor won’t run: thermostat, control board, overload
Air conditioner compressor won’t turn off: thermostat, thermistor, relay board, control board
Air conditioner is loud or noisy: compressor, drive motor, fan motor, fan blade, fan, blower wheel

How to disassemble your air conditioner:

For more DIY videos including part replacement and help finding your model visit the repair help section of our website:

Click here to purchase replacement air conditioner parts:

All of the information provided in this window air conditioner troubleshooting video is applicable to the following brands: Amana, Electrolux, Fedders, Frigidaire, GE, Haier, Hampton Bay, Kenmore, LG, Whirlpool

RepairClinic has millions of replacement parts for appliances, lawn equipment, power tools, and heating & cooling equipment including washers, dryers, dishwashers, refrigerators, lawn mowers, snowblowers, furnaces, and air conditioners. Our customer care team is available to help by phone or live chat, seven days a week: 1-800-269-2609. We guarantee the fastest shipping possible—all in-stock parts ship the same business day. Return any part for any reason with our generous 365-day return policy.

In addition to providing replacement parts, RepairClinic.com offers free online troubleshooting information and DIY repair videos. Use our website to choose from a series of problems to discover the likely causes and the correct replacement part(s) for your particular model. Once you’ve determined the solution, our expertly-produced video tutorials will guide you through every step of the repair.

At RepairClinic, we make fixing things easy!

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  • Chegondi Dutta
    Chegondi Dutta 5 лет назад  wow i just learned how an AC works
  • Shepherd Wolf
    Shepherd Wolf 8 месяцев назад Chegondi Dutta Same!
  • James Mcfarland
    James Mcfarland 2 года назад Chegondi Dutta why do it trip at reset
  • James Mcfarland
    James Mcfarland 2 года назад RepairClinic.com wont run
  • RepairClinic.com
    RepairClinic.com 5 лет назад Woohoo!
  • Howard Lovecraft
    Howard Lovecraft 2 года назад I know it doesnt seem like much but the simple,science behind AC still blows me away and is one of my favorite inventions. When I was deployed that wall AC unit was more important to me than phone calls home, dvd players, or night vision haha.
  • Dennis D
    Dennis D Год назад Howard Lovecraft what branch ?
  • Ross Thomas
    Ross Thomas 2 года назад Clay B I am currently in classes to get my certification. it really is amazing the amount of physics involved with a simple HVAC system.
  • M C
    M C 3 года назад "Any repairs must be performed by a registered technician" and pay his ass 200 dollars? Nawww these youtube videos are fine, it's like college except I'm not going to be in debt $60,000 like everyone else :D
  • Mike M
    Mike M 10 месяцев назад when it comes to a cooling system using refrigerant it can be very dangerous to work on yourself without extensive knowledge on how the system works. It is pressurized.
  • GutsofEclipse
    GutsofEclipse 11 месяцев назад (изменено) I suspect that within two decades, the current university system of four years and $50k worth the debt will be considered a backwards relic of the past. A large number of people will learn online and then go to accreditation centers to prove their ability. Also, unless you're taking a STEM degree (can easily eliminate a year from the program and cut down on the cost by tens of thousands of dollars by shutting off the valve of infinite wealth redistribution into their pockets and forcing them to cut everything that's not absolutely necessary; no more excessive administration or activist departments destroying wealth), all post-primary schooling (which I suspect will also get shortened by 2-4 years and will become more focused) will take the form of trade school that teaches you what you need to know in order to get to work in no less than two years.
  • monk 2e
    monk 2e 2 года назад I like Playstation if you paid 200 for a repair guy you would be stupid anyway. you an buy an 5000btu for $70 brand new. 9 times out of 10 people just forget to clean the filter
  • reid antoniow
    reid antoniow 2 года назад except you don't become an expert you become a diy and this guy said a compressor pumps liquid... never in 1000 years should an compressor try and move liquid and after your YouTube repair you find yourself calling a pro
  • Taylor Willis
    Taylor Willis 2 года назад +Alex Reyes yeah serioudly, that's what I did, my grandma's has a little window unit in a backroom that doesn't connect to the central air system and she was about to call to get it repaired, but you can buy them for like $125-$175 for the small units o.o
  • Alex Reyes
    Alex Reyes 2 года назад 200 dollars I'll just buy another ac
  • Babu
    Babu 1 месяц назад (изменено) Coming back here after 7 years!!!! Wow...loved the 2012...valuable video that never gets old!!!!!
  • PA551ON
    PA551ON 2 года назад it's 1:30 in the morning. why am I watching this?
  • Spookay! !
    Spookay! ! 2 месяца назад El_Dandi310 12:50am right now in Philippines :)))
  • El_Dandi310
    El_Dandi310 9 месяцев назад 12:48am in L.A. lol
    IM SO WAVED ツ 10 месяцев назад Flash - Minecraft lol same it 4:30 AM right now
  • Flash - Minecraft
    Flash - Minecraft 10 месяцев назад 4AM here
  • Tube Miscellaneous
    Tube Miscellaneous Год назад 😂 😂 😂 😂
  • Anita Wilhelm
    Anita Wilhelm Год назад It's 1:27 here at my location.
  • Brad Schutt Vevo
    Brad Schutt Vevo Год назад MisterMercy lol, it’s 1:33 right now where I live
  • Ian
    Ian Год назад wow small world it's 1:31 here and I'M watching this!
  • Ian
    Ian Год назад What my instructor is stressing: Air conditioners don't cool anything, they remove heat. : P
    SĦȺĐɆ 10 месяцев назад dav vad Oh, my bad.
  • dav vad
    dav vad 10 месяцев назад Yep they do! I was saying exactly to you btw
    SĦȺĐɆ 10 месяцев назад dav vad You're correct, cold is not a physical thing. However, the definition of cooling is to remove heat so air conditioners do cool things.
  • dav vad
    dav vad 10 месяцев назад Exactly because cold is not a physical thing. There is no such noun as cold (except the common cold). Cold when used for temperature is an adjective to describe the absence of heat (which is a physical thing)
    SĦȺĐɆ 10 месяцев назад (изменено) That's what cooling is.
  • SRR Founder
    SRR Founder 11 месяцев назад Do I face the vents up or down to cool off a room quickly? I have a wall unit. Thank you! ~Mikio ❤
  • Addison Maravilla
    Addison Maravilla 3 месяца назад That compressor does not turn the refrigerant back into a liquid...
  • Ron McKenzie
    Ron McKenzie 5 лет назад Very informative clip for a layman to understand common problems associated with air conditioner and easy way outs to deal with these problems. Keep sharing such kind of videos.
  • RepairClinic.com
    RepairClinic.com 5 лет назад Thanks for the comment!
  • arnav bhatnagar
    arnav bhatnagar 3 года назад very nicely explained bro
  • Golden Albatross
    Golden Albatross Год назад The best video I found on how the A/C works And some other information I had no reason to search this except out of curiosity
  • שלום הגרוזיני
    שלום הגרוזיני 1 месяц назад This air through the wall Lg air conditioner arrived sooner than planned packed excellent >>> nub.best/6zuk Every thing that was need to install was packaged , the foam strips and the frame even had the mesh scream but I did not need the sleeve in in the wall I cleaned it and had it ready to install the air
  • robabymama34
    robabymama34 1 месяц назад goood
  • shotski100
    shotski100 1 месяц назад goood
  • RepairClinic.com
    RepairClinic.com 5 лет назад There are usually two fans in the unit, one for the evaporator and one for the condenser coil. You may have either one motor with a shaft coming out both ends or two separate motors. It sounds like you may have a condenser fan blade either hitting something or loose. A condenser coil itself will not generally make any noise unless the lines are hitting together going to it. I would look it over again and see what you can find.
  • RepairClinic.com
    RepairClinic.com 5 лет назад Thanks!
  • Jason F
    Jason F Неделю назад Hi! Are these compressors like refridgerator compressors? My new ac has been laid sideways for days. Do i need to stand upright and wait for the oil to settle? Thanks!
  • J C
    J C 5 лет назад GREAT VIDEO!!!
  • RepairClinic.com
    RepairClinic.com 5 лет назад It's significantly cheaper! We sell the parts too!
  • Hans Hodge
    Hans Hodge 5 лет назад aww mann, now i can fix my a/c instead of buying one lol
  • RepairClinic.com
    RepairClinic.com 5 лет назад Good!
  • RepairClinic.com
    RepairClinic.com 5 лет назад Thanks!
  • Balender Nain
    Balender Nain 5 лет назад good demonstration