AC Unit Not Cooling House - 20 Reasons Why
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- Опубликовано: 21 ноя 2024
- Is your AC unit not cooling the house enough and not getting to the set temperature on the thermostat? Here are 20 reasons why your home air conditioner may not be blowing as much cold air as it should be. Many of these cooling problems are actually not major problems, such as simply replacing a furnace filter. I also referred to a few videos, I included links to those below:
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❄️ AC Unit Not Turning On - How to Fix it:
• AC Unit Not Turning On...
🔋 Capacitor Playlist:
• Capacitor Playlist
⚡ How to Install a Hard Start Kit:
• How to Install a Hard ...
☁️ Furnace Air Filter Playlist:
• Air Filter Playlist
💦 How to Clean Condenser Unit:
• How to Clean Outside A...
🌡️ Thermostat Playlist:
• Thermostat Playlist
✔️ How to Check AC Temps/If it's Working Right:
• AC Not Working Right? ...
🍃 Air to Air Exchanger Video:
• Home AC Not Keeping Up...
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For More Repair Videos:
🔥 Furnace Repair Playlist:
• Furnace Playlist
❄️ AC Repair Playlist:
• Air Conditioner Playlist
💧 Water Heater Playlist:
• Water Heater Playlist
🛠️ HVAC Tools Playlist:
• HVAC Tools
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🛒 For a Complete List of Tools and Parts Visit my Amazon Page:
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⚠️ Disclaimer:
This video is for educational purposes. All appliance and HVAC repair work should be done by a trained professional. Word of Advice TV is not responsible for any possible damages or injuries caused by the use or misuse of the provided information.
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❄ Other Videos For Reference:
Top 5 A/C Problems:
ruclips.net/video/GOXgdnRB840/видео.html
Complete A/C Troubleshooting Guide:
ruclips.net/video/wzAA4dlp_70/видео.html
How to Clean Condenser Coil:
ruclips.net/video/pzwOvgjwm_Q/видео.html
How to Replace a Capacitor:
ruclips.net/video/9ZGfvC-PMWU/видео.html
How to Replace a Contactor:
ruclips.net/video/qHZc9wWAF4c/видео.html
How to Replace Condenser Fan Motor:
ruclips.net/video/gGFTd2dmgxg/видео.html
How to Replace A/C Control Board:
ruclips.net/video/hijUExXrcm8/видео.html
How to Replace a Thermostat:
ruclips.net/video/1mJkjrwxdP4/видео.html
How to Check Freon Level:
ruclips.net/video/dExFtP-nXTw/видео.html
How to Wire A/C Condenser Unit:
ruclips.net/video/KCanZEsLVEI/видео.html
How to Read A/C Wiring Diagram:
ruclips.net/video/I-sB4GIlbl4/видео.html
When Should You Replace A/C:
ruclips.net/video/Z7vUOySOWbM/видео.html
15 Air Conditioner Maintenance Tips:
ruclips.net/video/pBBnXHse-T0/видео.html
Should You Get an A/C Inspection:
ruclips.net/video/JqNsEzb__qs/видео.html
How are you doing, I don't have no central air in my living room and bedroom and it shut off 36 times the thermostat, the central air ducts is the problem as well, the manager said it's nothing they can do about, because they will have cut open my wall and it's alot of duct to be torn out and replace, the old thermostat was replace but shut off twice, it's not doing it now after the lines was bleed,
I am a 76-year old female. I subscribed because I like the complete, but the simplistic style of your teaching. Some of the repairs I will complete myself; the others I am knowledgeable if I call a professional. Thank you.
For future reference in case anyone else needs it.
1. 1:12 Condenser unit not working at all
2. 1:52 Bad capacitor
3. 2:50 Locked up compressor
4. 3:37 Bad condenser fan motor
5. 4:52 Dirty furnace filter
6. 6:08 Plugged/dirty evaporator coil
7. 7:11 Plugged/dirty condenser coil
8. 8:21 Dirty return grill
9. 9:04 Bad thermostat
10. 9:45 Thermostat programming
11. 10:27 Turning AC on late
12. 11:15 Low on refrigerant
13. 13:09 Leak in ducts
14. 13:49 Undersized unit
15. 15:33 HRV is running
16. 16:15 Open windows
17. 16:55 Bad install
18. 17:41 Damper closed
19. 18:37 Poorly ventilated attic
20. 19:25 Poorly insulated house
Your a real one ☝️
thank you
U are amazing
Super man ! Thanks .
You forgot
Overcharged unit
Restriction in lines
Outside coil dirty
Plenum torn or collapsed
Condensor motor going wrong way
Wrong size capacitor
No low voltage
No high voltage
Indoor blower motor out
Transformer out/burned
Fuse burned out
Broken wire 24v/120v/220v
Schrader valve leaking
King valve leaking
Indoor fan motor capacitor our
Outdoor fan motor capacitor out
Our unit is about 8 years old and ran perfect. The fan outside started making noise, then stopped, gave it ‘stick jump’ and it ran. Then the compressor stopped. Watched your video, bought two capacitors. Changed out one in the backyard. Turned the unit on and work it did! Thank you!
Just closed on our house a week ago and the AC went out last night in the middle of a heat wave! Was able to diagnose, source an equivalent part and fix the problem by 11am today! ( I got lucky, it was a bad capacitor). You have saved me over $500 and can now maintain and understand my system. Subscriber well earned. Thank you!
It's hot here in Dallas Texas. Heat index 110, heat advisory, and my lovely wife says the ac is blowing warm air. It's after 5:00pm I have a great AC guy but he's going to charge me $$ just to look at it. I did most of what you said, checked the filter, it was ok, fresh batteries in the thermostat and I had a spare run capacitor - not going to pay 75 dollars again for my ac guy to replace it. Air out of the vent dropped from 85 degrees to 65 degrees. Thanks... we are sleeping cool tonight. Keep of the great work.
Capacitor you think? I like Dallas, watched the eclipse from near there :)
THANK YOU SOOOOOO MUCH!!!! My poor system was struggling in this 105 degree heat, barely cooling the house to comfortable temp! After watching your video, I got out there with my hose and cleaned those coils! It was 82 degrees in my house when I turned the power to the unit back on and within a couple of hours it was a cool 73! You saved me money and my sanity! I will be doing this seasonally from now on! Thank you again! God bless you!!!!
I installed a replacement coil on my unit by myself. After being quoted $50 for 1 pound of coolant. Then the A/C man wanted to replace my entire air handler for $4200 because to coil was leaking. I saved myself about $4700 doing the job myself. The system works great now. I appreciate your videos. I have learned a lot from them.
Wow, that's amazing that you were willing to tackle it yourself and got it all done and it's working good! Kudos to you my friend, there's not many people out there who would do that! Glad to hear my videos have been helpful, stay cool!
So you got the replacement coil, refrigerant, and all the tools to properly do a change out of a coil for free? Otherwise you didn't save $4700. Makes for a nice story but isn't true.
What did the guy quote you for just the coil change? A coil change out is usually around $1400 - $1900 dollars depending on who quotes it and how much refrigerant is lost. Buying a jug of refrigerant, a vacuum pump, a torch set, the replacement coil, a set of guages, a temperature clamp, the odd and end tools for removing the old coil and putting the new one in; that all costs money. Did you also change the filter dryer on the outside when you changed the coil? Bet you didn't, but you're supposed to. It's working right now, sure, my suggestion is save up all that money you "saved" though because you're going to need it.
Yeah. You saved yourself maybe $500-800 bucks after you got everything you needed to do the change out yourself. You didn't get a warranty for that coil though. No chance is any manufacturer giving you a replacement if there's a problem. So sure, you saved some cash and that's great. But let's not paint some crazy BS story because you could have had a professional replace it for not a ton more than it would have cost you to do *correctly* and you'd have gotten a warranty.
I can promise you if I roll up and you tell me something along the lines of "yeah I changed the coil myself" I'm either walking away immediately or I'm charging you a ton. Because how can I trust anything you did?
You're going to be the exact same person who is either going to be over my shoulder the entire time I'm trying to work trying to get me to give you free advice to try and do the work after I tell you what's wrong or you're going to be calling and complaining because I can't fix what YOU broke without changing a bunch of stuff. I don't want either of those headaches.
Change a cap yourself, heck change a fan motor yourself. No customer should be touching a coil change out though. Don't like the price quoted? Try a different company and ask them to quote you just a coil change out. Most quotes are free.
@@mythrol let me guess. You own a AC shop? If you can't add simple numbers it's your fault. I said he wanted to change the entire airhandler out. ($4200). The system was completely empty and at$50 per pound, you do the math. (If you can). I did not need the recovery tank because the system was empty. Yes, I bought the manifold gauge set, mat torch, 2 dryers, coil, 25 lbs of 410a. TXV, for about $800.
Why do you slam people you don't even know and say you can't do that job? You think I care about a warranty if I installed it? You can pay all the money you want to your air conditioner man, your choise.
But don't come on here acusing me that I could not do the job. I can do a lot of things I'm sure your not aware of. But you should not bare false witness against people. Especially when you In fact... Do not know.
Rs M I agree with you. Its your house and your money. Guess that guy lost money for something he could of ripped you off for 🤣. But hey good job man 👍🏻
Lol that was a complete joke they won’t even sell you refrigerant without universal and it’s illegal to handle if your not licensed. What BS are you talking about I am licensed plumber and G.C absolute baloney!!!
This is the second summer I've relied on your videos to help me out!! THANK YOU!!! My husband works a *lot* and I work from home, and even though he's incredibly handy and knowledgeable, he doesn't always have the time, so it's been really awesome getting to help him out with home repairs, and your videos are so easy to follow/understand that I've been able to handle ALL the repairs completely by myself 😁 I send these videos to everyone I know lol you've easily saved us hundreds, if not thousands, of dollars!! Seriously thank you!!!!!!
You're very welcome!! I'm glad to hear that the videos have been helpful for you and you were able to successfully fix the breakdowns! Kudos to you for being willing to tackle these problems yourself! Your husband is fortunate to have you. God bless you, stay cool!!
I cannot thank you enough for this detailed information. My AC stopped cooling the house last night. Now I know what may be causing that. During the middle of the night I heard a very loud knocking noise outside of where the air-conditioner unit is located. At first, I thought someone was knocking on my steel siding. Then I listened to hear if the AC was still running and it seemed to be. When I checked the unit this morning, I noticed that the fan seemed to be working fine but did not hear the compressor turn on. My HEIL unit is 22 years old but is only used about 2-3 months in the summer as I live in Minnesnowta. You are such a blessing for sharing this information!
Thank you!!!!!!! Did a few of the first steps and the wind started blowing. I hope you see this, thank you!!!!!!! Thank you for that service to the community. I hope all is well.
🎉
Thank you
I kid you not, I was having problems in the middle of the heat this month with my AC. Just bought a house and i was confused why i put on the Cold in the thermostat but no COOLING and the AC didnt function...
Called an AC guy and he charged 100$ just to come and he was backed up for a week atleast. Didnt even call me back.
Saw your video...and all i had to do was switch the breaker!! OMG!!! I am living in a igloo now!
Thanks man!!!
lol.
Almost did the same thing, then I saw the step to replace the thermostat batteries and it worked and this video saved me so much time and money I am so thankful
@@isawthesaladdressingandili207
L m
I suspect my heater is running at same time as my A/C on a all electric unit how do I test it?
What number was that or did you just notice it? Replace a breaker in the breaker box? Thanks
Thank you SO much! You were my RUclips mentor yesterday and it took most of the day, between watching RUclips, Googling, trips to the hardware store for parts. I'm not the typical demographic of someone who fixes AC units, shall we say. But finally through process of elimination, mostly from your video series plus a few helpful bits from others, fixed my AC - it turned out to be a $10 canister fuse blown at the wall shut-off next to the AC unit. In between, I had to learn how to use a multi-meter to read voltage, watch your safety tips like with handling the capacitor etc. I surely would have been better off paying a professional rather than take all day myself, but there was a huge backlog and we are in a heat wave, couldn't wait. So this was life-saving. Thank you for your great informative series.
After watching your video I was able to find the problem on my AC by replacing the capacitor. You saved me so much money. I can't thank you enough! ❤😊
You should become HVAC instructor. You made your explanations easy to understand for everyone without HVAC knowledge. I've been trying to learn HVAC myself but most videos out there talk too much but barely going to the point, find out issue and solutions. You have experiences inside and out, you can talk all day without the scripts. Most issues usually happened out there with relay, capacitor, cleaning the coil, replace thermostat battery. You have instructed how to replace these and save homeowners' a lot of money.
Very well done and thank for the videos.
One issue I found myself before that when weather transition from the Fall to Summer, the outdoor AC unit didn't run when it first start, I just shut down the A/C breaker and turn back on, somehow the power kicked in the unit and the unit start to run and everything are fine. Sometimes the tech got lucky but it took care the issue and save the money.
😢😢😢😢😢😢😢😢😢😢
I have a short attention span, sometimes even for stuff I like...
My mobile has been 90° for almost a week straight. You were so knowledgeable you kept re-setting my attention span 😉 Thank you.
I love you, regular homeowner here. You helped me troubleshoot and fix my AC for less thank 50 bucks, vs doing an quote emergency service call since its the weekend. my capacitor was bad. i have zero hvac experience but im mechanically inclined. Just tested it and picked a new one up at a local part shop for 28 bucks you saved me at a minimum 500 bucks possible more with labor.
You are welcome. Since you saved quiet a bit of money send a donation as soon as you get a chance. Thank you!
WTF 😂
Wow, this was very informative and to the point. When I saw it was over 20 mins, I was not eager to watch, but those minutes went by fast because you clearly explained and kept it simple. My husband usually takes care of this kind of stuff, but he is working and will have to wait to watch RUclips when he gets home. In the meantime, I’m pre-screening for him. I know nothing about technical stuff like this, but even I feel very informed after watching you. Thanks a million!
A/c is not cooing
Thank you twices brother,you saved my money and my happynes!....my A/C was stopped work,and a bad guys says me that the problem was compressor,but i saw this great video and u opened the box my A/C and i replaced my the capacitor and them come back work like new!!!!
OMG!! Jay, I think you should be awarded 🏅🏆a Noble Peace Prize for how you laid out this AWESOME word of advice info... you are AMAZING, thank you sooooo much!
Dang my brother!!! I just subscribed to your channel!!! You have to be one of the most informative content creators in all RUclips!!! I’m impressed with your knowledge and presentation!!! Thank you so much for excellence!!!
👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾👏🏾
Canadian hvac student here your explanations are so helpful.
I’m a new Technician helper. I’m still learning eventually I’ll be a good HVAC technician. Thank for your all the great information.
If I had a 3800 square ft house I wouldnt need an ac unit maybe even find the hot spot that has been so hard to find. Badass video by the way. CK.
Bad Capacitor was my problem. It looked fine but I replaced it anyway and the problem was solved. I then took the old capacitor and did not notice anything wrong until I placed it on my kitchen counter. The capacitor had a slight "bulge" on the bottom of it and it could not stand on the counter properly ( I did not notice it by just looking at it). It rocked back and forth. Since then my unit runs great! I really learned A LOT from you and you saved me a lot of money. Good luck in Hawaii, I did not have an AC unit growing up there but I heard people are now getting AC units.
Glad to hear you were able to get the AC going!! Yeah, those capacitors don't always bubble up when they fail. Thank you for the well wishes, I think I'll be okay with work over there :) Have a great weekend, stay cool!
Jay, you are my hero and I need to give you my money for helping me!!! Our AC went out during a heat wave and because I was fortunate enough to come across your video I was able to figure out the issue and fix it myself. Saved me tons of $$$ and days being cooked to death waiting for a technician to come. The hardest part was trying to find the part I needed, which was impossible to find locally, so we had to wait in literal hell roasting in a house of nearly 90 degrees for a couple of days for Amazon shipping, but it came, I replaced the part and saved our lives. I cannot express appropriately my gratitude for you and your videos, and how talented you are at delivering information so that dumb dumbs like me can accomplish the impossible. THANK YOU!!!!!!!!!!!!!!!!!!! (Seriously, how do I send you some compensation?!)
Thank you for being appreciative.
Great Channel! Clear & realistic instructions wrapped in sound advice.
Here's my story of why my AC wasn't keeping up as we start this summer:
I changed my motor out this past winter (with your good counsel). I used a universal replacement motor and naturally, even though my old motor was on the medium speed, I naturally figured if medium is good and worked for 15 years, then surely "High" is better - can anyone relate? As usual, more is not always better, I over powered my coils. The air was blowing over the coils so fast the humidity stayed with the air all the way into the house; as I figure it, the air wasn't around the coils long enough to "cool off"..
Bottom-line: I switched the black wire with the blue wire and it's back on medium speed. Now she's keeping up just like she always has - Go figure! Kudos to my original install team - their calculations were apparently "spot - on"! (smile)
Thank you so much for this video! I am staying at my parents and trying to help them with house maintenance with no background. This relieves my anxiety on not knowing how to deal with HVAC and being more educated/confident when I talk to HVAC technicians. Much appreciated!
number 5 -check filter-was the winner for me. Reminded me that I have a air exchange vent under my bed (in my seasonal park model trailer). lo and behold I hadn’t removed the foil and trivia per suit box that I covered it with to protect the place from mice over the winter.
Everything is a working great now!
Such a great video. So informative and well presented. Thank you!!!
I can't thank you enough for this video! I think you've covered everything that could go wrong and you removed alot of the mystery many of us feel about a/c. Thanks again.
Im about to enter the trade, and find the whole process of air conditioning fascinating! Your definitely the top dog of tutorials, and information on RUclips I've learned so much already! You get so in depth and keep it simple and easy.. Keep it up !!
Thanks for your experience and time to teach us this information. You obviously know your stuff and try to make it clear to understand.
Thanks for your informing your viewers about turning down the T-stat trying to make it colder faster. I've found on many occasions the unit iced up due to the system trying to overcome the heat load, never shutting off.
Thank you for your videos. I was able to change the capacitor and learn a lot more about A/C. 🙏🏻🙏🏻🙏🏻🙏🏻 I also bought capacitor through the link you post. Hope, you have more of this wonderful videos for others like me.
Just a DIY’er, keeping this one in my back pocket. Incredible clear and covers A LOT of different potential issues, plus links to additional problem specific resources. Perfect video, thank you!
"its not running at all". you are great. air conditioner maintenance is crucial in florida the themometeter at the condencer is in the sun 120 F
Daaaang! You where right! A huge vent pipe fell, so the attic was nice and cool. 😅
Omg you are sooo good at explaining things to check when diagnosing rather than just explaining what could be wrong, you tell how to check things that people often leave out. Explaining how on really hot days (what I’m currently experiencing in TX) it could take a whole day to cool rather than maintain if you let the temp get too hot. What to look for if you suspect Freon is a problem. So helpful and Thank you!
As someone thats in and out of the trade, every time I decide to put the boots back on I come check out some of your videos to jog my memory and it never fails., you sir are the 🐐 dgmi (definitely gonna make it) Thanks For The Content Bro
Love your videos lots of info. So my thermostat is set at 78 but temp is 81 during the day. At night it get to 78 I did change the capacitor was bad and replaced it. It being very hot here in Central Florida about 98 index at around 112. Clean inside unit coil and replace filter. So will se tomorrow.
Any update on this? I've been searching since last year and no one has a solution.
I just graduated hvac school last week with my EPA universal and started in the field Monday… and I’m still here learning so I can be ahead of my training 🙌
What school did you go to I need to find one
@@JackGore you in Florida?
@@TechManDanN New York but I was thinking the school was on line
@@TechManDanN New York but I was thinking the school was on line
@@JackGore tbh you can challenge the test without even going to school .. that’s what I would’ve did if I known it before I got in school
It's a life saver but it's funny how this video is a video about all ac related problems. I have to watch a lot of videos.
Bruh my ac was not working for like 2 days watched this and fixed it immediately thanks brother
What was the problem?
I replaced a few electrical components on my unit over the years. I wish you had made theses videos back then lol! Very informative and great instruction! Thank you. 😊
Thank you for all the tips. My upstairs ac is not cooling down I’m gonna go over all of the tips you gave . I hope I can fix it on my own. I’m not working right now and I can’t afford someone to fix it. Again thanks for sharing.
Sure, the HVAC stuff was interesting, but the real value of this video was at the end!
This vid is so helpful‼️ I’m struggling to get my landlord to fix my AC properly
First of all, thank you for sharing the video. It followed your process and it helped me understand my unit much more than what I did before (which is practically next to nothing).
I have two AC units (one for down stairs and upstairs). Downstairs was working fine but for some reason, upstairs was not working. So I called the technician. It turns out that the AC power switch for upstairs was turned off. He turned it on and viola! it started working (shows how little that i knew about my units.. .and I had to pay for it too). While he was there, he checked the freon on both units and tells me that he needed to fill them as well since they are running low (both are around 20 years old) and told me that I should consider replacing them. Fine. I called around to get an estimate.
A week after the freon was filled, I noticed that the downstairs AC is no longer blowing the cold air. I called the technician back to check and he says that it was filled with freon and he needed to go up the attic to check the capacitor. It was an odd hour and I was out of the house then so he said he'll be back the next day the check. He didn't show up.
Just to do my due diligence before I pay him more, I checked everything following your direction... and this is what I found. All the units were working fine... outside AC, upstairs Attic, and it feels that the air was circulating properly. What I noticed, however, is that the upstairs AC unit on the outside, which is now working) is blowing up hot air through the fan. Downstairs AC Unit (which is NOT working) is blowing up cold air. hmm.... I checked the thicker pipe line coming out of the AC out of the outside, and the upstairs one (which is working) was cold. But the pipeline coming out of the AC unit for downstairs (which is NOT working) is not cold at all.
Can you help me understand what is happening and what could be the issue?
Thank you much for this. Im a new homeowner and i was so lost.
I watched your video to the end. Thank you for your insights. I learned a great deal of things a home owner can do before actually contacting a technician and then ask some knowledgeable questions. Hats off to you !
My neighbor just had their 42 year-old AC replaced at a cost of $12,000 and mine is the same age (moved in in Dec 78 -new house). I could tell that my AC had been getting a little less efficient over the past couple of years and I was thinking of replacing it too. I watched your video and checked one thing that I had not checked before. When I checked the coils at the top of my air-handler, they were dirty. I almost looks like they had installed a very thin charcoal filter on the inside. Once I cleaned it, the air volume coming from the vents was much greater. It is supposed to get to 104 today and tomorrow so I hope this change will keep my house at 76 instead of 81/82. Thank you for the great video and for saving me from having to replace my AC in the summertime.
been doing this for more years than i like to recall..(before capacitors were used and 12, 22, 502 were the only Freon used.)(yes; i know ammonia been used and still is for heavy industrial and r v refers.) well done video.
Oh wow, you sound like someone who's years of experience rivals my age :) It's an honor to hear that the video was well done from a veteran tech! Thank you for watching and leaving a comment!
Maybe you can help me the unit I am trying to fix is r410 gas and has low side pressure 120psi. the clean coils and quick filter appear to be fine but only 68f comes out. of supply and 79f.return but the suction hose does not sweat which could be if you can help me with an idea. Could it be the txv valve? thanks in advance
Love the video! Just bought my first home back in April and it’s been a learning curve to say the least.. but thanks to you my ac is cooling properly again! I appreciate your advice 🤩. And on how to annoy folks lol 😂
Thank you very much for for the DIY, it helps me fixed my air conditioning in my house.
One thing I might add is to make sure the blower motor is spinning in the correct direction. A recent airflow issue I was having was caused by the blower motor turning in the opposite direction after replacing the blower module. I was able to reverse the polarity (swapped the positive and negative wires at the motor connection to the module) and got it to spin in the correct direction. Airflow was restored and AC was getting to temp again.
Thanks for the video, you saved my bacon. Replaced bad capacitor and AC is working again!
Bang on Brother! Low on refrigerant in my case, line was frozen, tech that had fixed the leak had not refilled with enough refrigerant
Had a partially plugged up condensate drain that caused intermittent hvac operation. Water would build up until it lifted the float of the Safe t switch, shutting the unit down for five minutes until the tstat built in delay would allow it to restart, at which time the build up of water under the safe t switch would have drained out .but temp on tstat was higher than set point. I caught it when I looked at the tstat when the safe t switch had triggered and it was blank from loss of power. Cleared the drain line and all was good.
Oh wow, that's a good one too!! Way to track it down! Thank you for sharing!
Same here. Crazy.
It would be nice if you provide a price range for what each repair can cost. I know prices differ by state. Thanks for the video.
great vid and tips my man, thanks. i hosed out my 2 units outside and also changed each filter for them. and one spot really hit home.. our lower A/C was broke yesterday.. (I have a downstairs and a separate upstairs unit.) it was 95F outside.. i keep a spare capacitor just in case. sure enough, the fan was not spinning outside. The capacitor was all swollen. (I replace them every couple years). I replaced the capacitor and bam, the fan started.. but then.. it was 81F downstairs.. After 4-6 hours, it was only down to 79F.. i thought i hadn't fixed it.. then you said that sometimes it can take a full day to cool if you let it get too hot.. next morning... it was 72F.. i think the A/C is working, but it is also still 80F at night.. I'll have to see if it keeps it to around 74-75F when it gets hot later on..
Fixed the AC that ran the fan in the house but not cooling. Capacitor, thank you for the videos.
Young man you are fantastic!!..tell your mom to cook your favorite meal cause you deserve it..
My suction line was freezing up. I cleaned vents around fan and compressor and replaced capacitor because fan side was bad..now suction line is not getting cold.. what did I do wrong? 😭
This is a very good RUclips and thanks for your AC Unit Not Cooling House - 20 Reasons Why show!❤👍👍👍
This is a great video. My question is, should I have a filter behind the return vent? Thank you
Thank you! If you have a filter by the furnace/air handler that is enough. But if there is no filter there and the return grill is the only place where your filter slot is, then there should be a filter behind it.
@@WordofAdviceTV Thank you for responding. Yes, I have a washable filter in the furnace.
Man, you saved my skin and my wallet with these videos! Was able to get the ac working just as the heat started hitting us here in Colorado.
I like the way you explain things, simple and straight forward.
I read your message three years ago was going to reply then my phone rang I got busy with something and forgot. So before I forget again- Thank You!
Great info and summary Jay, thank you! I relied on one of your hard start videos yesterday to proactively add a spp6 that I picked up from Johnstone Supply. Added the capacitor / relay to a perfectly functioning 27 year old Comfortmaker AC as it sounded like it probably wouldn’t hurt anything and could possibly extend the life of a flawlessly functioning system. Thank you!
Thank you Holt! Glad to hear that my videos can be used as reference for stuff like that :) Those old Comfortmakers have long lifespans so let's hope that one hangs in there for another 10 years or so!
Word of Advice TV No joke! It’s my moms AC unit I was peeking at for “fun” and allegedly she’s had nothing done to it since 93 when it was installed (other than annual spray down of the outside coil). Unbelievable. Delta T shows 18 degrees. Unit sits in the shade. Maybe that has helped. Hope your house selling and work is going well!
Sounds like a little beast! Yeah, as far as I know, if the unit is not baking in the sun all day it does help it last a bit longer. The house is already sold but the closing process can take up to 60 days and we won't be moving until then. The corona virus has really made this process a lot slower... So just waiting now.
Word of Advice TV congrats on selling your house! Are you heading straight over or planning to stick around here at all before moving? If you need anything, definitely don’t hesitate! Also, congrats on your channels continued growth and success. It’s great to see the new subscribers pile on! You’ve certainly earned it.
What a great video, we lost power for like 15 seconds then my air unit stopped throwing cold air. Fan working, thermostat working, tried breaker, going to change filter praying that’s it. The unit is only 3 1/2 years old. Hopefully I can do this on my own! Thank you for your video!!!
What was your issue ?
I needed to get a dual capacitor replaced. They told me to get surge protection on my electric box.
I'm in AZ Temp wont stay set on my unit. Set to 84 will go as high as 90😢😩 tech came out put in new a compressor & fan..still doing the same thing $600 later..Ten days, 3x svc calls..& now I'm going mad crazy. Thx for your informative video
I watched a very detailed video last year of a guy taking apart a 2004 f-150 cold air intake manifold. His video was the closest to my vehicle. Despite 30 degree weather, tight spaces, constantly dropping things bc i could not feel my fingers i went from a guy with an elaborate first purchase tool set to finally admitting defeat and having AAA tow it to my normal mechanic who encouraged me to try. I think it had between 8-12 bolts total holding it in on both sides . It was heartbreaking, but my mechanic said, "Good job." His assistants took 3 days, putting it back together as i took cell phone pics and labeled some items with tape and a marker. My point is excellent video, i actually have 3 pages of notes and references i paused,wrote down, and even screenshot. We have a professional coming hopefully this week, but i can tell him the easy things i tried to help him rule things out. I also contacted a number about the solar screens to see if it is legit or not, I will be calling to see if i qualify for a home energy audit , and in total i have 3-4 pages of detailed notes from your video and still have to follow up on a couple you used in making this one. I normally never write comments, hence why this one is all over the place. But this one made me want to learn more and more. I subscribed to your channel and finally just wanted to say thank you for presenting the material in a way i wanted to learn more and more. I look forward to looking back at your other videos and new ones to come.
Good video with clear explanation. Should I place the air filter at the air return or just return air grille only? Thanks,
Hey Jay. Thank you for your very informative videos. Good job!
I have an AC problem I just can't resolve, so far. Two days ago my AC started blowing warm air. Since then, I've done the following: 1) replaced filter below blower, 2) replaced dual cap - slightly rounded out both ends, 3) installed hard start, 4) replaced condenser fan, 5) checked low side pressure - 75 psig, 6) ohmed out compressor from contactor T1, T2, Cap Herm (2.0+0.8=2.8) - I did not ohm to ground, & 7) replaced thermostat batteries & checked wire contacts at thermostat.
My symptoms: after a short delay from thermostat Set point, compressor kicks on, condensor fan kicks on, semi cold air comes out registers. After a few minutes (5), warmer air starts blowing out. I go outside and compressor still running, but fan kicked off. Almost like short cycle syndrome. Air gradually gets warmer. Low side feels cold'ish to touch. Then I turn thermostat off so compressor doesn't get too hot. Condensor fan seems to cycle on/off. Maybe bypass thermostat by jumping R & Y to eliminate thermostat? Check 24 V at contactor & check plunger action (2 arms). Suggestions?
Why not just pay a technician that knows what they're doing!
So, what problem did it end up being?
Sounds like low on refrigerant to me
Excellent. Thanks for good instructions. I have questions. What is damber? How to check it good or bad. Thanks so much
Non-condensables is major problem with 410a equipment during a seal break. System needs to be pulled down below 500 microns and hold. If blended refrigerant is introduced to air, nitrogen, or water, AC will not keep up on hot days. I learned the hard way:$
I had a plumbing heating and air company come out to look at my water heater that needed replacing and they looked at my HVAC unit and said I should replace it because it’s original to the 2001 home. At the time it was working fine but since they were here it will run but doesn’t cool. They came back and said it has a short, which can happen at any time, and they’d charge $700 to find/repair….I’m hoping your video might help me get it back to working how it was before this company had their hands on it!🙏🏼
Less than 2 minutes in and I've discovered the source of my problem. Thank you!!
What was it in the end? :)
Remember a duct leak in attic is the same as pumping air outside which creates a double wammy. Not only are you pumping or drawing outside air inside, you have to makeup that air from air leaks either in or out of structure depending if leak is supply or return.
A bad situation all around. Thank you for explaining that AD!
Thank you for all the info my ac it was not cooling and a check the unit but I didn't know from where to start checking.
Thank you, for your videos. I really love how you give us the explanation in each video. You are very professional
I would like to know if you have a video in how replace or to install a condensate pump . Thank you for your help.
Thank you! Unfortunately I do not have a video on that yet but I will add it to the list of videos to make. 👍
@@WordofAdviceTV I turned mines down to 60 because it wouldn't get cold but when I turned it back up it started blowing warm air again what should I do?
I find your videos very informative. I’ve got an issue that may stump you though. Just had a new condenser installed yesterday on the house I rent. Tech can’t get the split in temps between intake and vents above 13 degrees, says it should be 22 degrees. We’re experiencing an excessive heat warning at this time with daytime highs over 110 degrees. In the past, with old condenser, and r-22, the temp of air coming from vents was in the mid to upper 40s. I’ve not seen the temp from vents go below 53 degrees yet with new condenser and new refrigerant type. This system does have a refrigerant leak and the source was not found prior to the new install. It’s possible the leak may be fixed with the condenser replacement, but so far, we don’t know. The tech adjusted something today that did reduce the humidity felt in the house (felt like a swamp cooler), and seemed to increase airflow, but air doesn’t feel colder. Is this just how the new refrigerant works? Seems less efficient. I would appreciate any input. Thank you for your time. Barbara
Saved me alot of money thanks and may god bless you sir 🙏🏾
Your videos are very informative. I've got a heat pump that won't cool. Coming out cool but not cold and won't get to temp. Also copper from heat pump and air exchange are getting cold and sweating. Any ideas???
Thank u young man for the tips , I just subscribed to your channel. I like the way you explain things, & you are not being pretentious by using big words 😁
Great information. What if your breaker keeps cutting off when you turn on your AC, what does that mean?
What is the ideal pressure for and temperature for 410R at85- 88 degrees outside. Thank you for your videos I've learned so much .
I really appreciate your time you take yo go through that list and give a brief description of each of these common issues. You did a perfect job thank for it. Although i do not know yet what cause my A/C is not cooling enough, but you give me enough ideas what to troubleshoot myself. And i look forward to do an inspection soon on my A/C unit. Thank you once again brother for the great job.
Thanks for the video, very informative. Can you cover more on the lost of refrigerant and how to troubleshoot where the leak may exist? Thanks
Thx a lot 4 ur super informative videos.
I live in South Florida, go into the house about 12 years ago. Just to find out last year... in the Arctic I have over 10 cuts or open completely ducts connections
Glad to hear the videos are helpful! And oh man! You were cooling the attic for all those years! That's crazy stuff.. Thank you for sharing your experience with that!
Thank you found your video very helpful, one question I do have, my elderly mother leaves doors open thus letting the hot air in, so, in doing so noticed now our a/c is not cooling is there a reset button on the cooling system for situations like this?
Hello, i like ur presentations they are crystal clear . David watching from juba southsudan
Best hvac channel all around the 🌎!!!!
I would like to thank you for all your valuable information, I am a beginner technician and you make things very easy to understand🤘🏼👍🏼
You did an excellent job. I am glad I find this video. I will change the air filter first.
If an AC unit is undersized, there are actually a few things that can be done to help it out. Sealing all the gaps around doors, windows, attic access panels, pipes, etc to the best of your ability can make a big difference without breaking the bank. All those seemingly small gaps really add up. Adding insulation to the attic can make a huge difference as well, especially on older houses with little to no insulation. Sealing all those tiny gaps in the ducts really helps too. Depending on what kind of windows you have, replacing them with more energy efficient windows may make a big difference. Anything you can do to reduce humidity will help the unit out too, so throw out the wife's house plants and use the exhaust fan when you shower. Turn off any extra electronics that you aren't using such as TVs, lights, computers, etc, those just add to the heat load. If you can reduce the heat load on your AC unit enough that it keeps up, you will be better off than having it replaced with a larger unit because you will lower your power bill instead of increasing it.
@museack Nor does it make sense to spend thousands replacing the whole AC unit with a bigger one that will cost more to run if that money could be spent on energy efficiency upgrades that would reduce heat load enough that the current unit would be adequate and cost less to run. What makes the most sense depends very much on the situation. For example, If someone has an old, drafty, poorly insulated house with a decent but somewhat undersized AC unit, they are likely to be able to reduce the heat load enough for their current unit to keep up just by sealing their ducts, insulating and air sealing the attic and replacing the weatherstripping around their doors. That would certainly be a more economical option than replacing the whole AC unit, especially considering that reducing the heat load would reduce the power bills rather than increasing the bills like a larger AC unit would. However, if someone has a more modern house that is already sealed reasonably well without much room for improvement and the AC unit is 20 years old and undersized, the most logical option would likely be to replace the unit since it is likely reaching the end of its life anyways and replacement would be about the only option.
I turned the temp up bc the house was cold and now it won't blow cool air. Hopefully I can figure it out tomorrow. Thank you
Very informative video.
I have Rheem Furnace. Aero Sys Condensor unit 2.5 ton. Model THDC - 30SGA unit in a condo. Problem I have is the cold air coming out of the vents is not enough to cool the house (1500sqft). I can feel the air from the vents but the temp on thermo stat does not go down. Plus my utility bill has gone through the roof.
- I replaced the air filter
- Checked the AC unit, the fan is spinning fine. Blowing hot air out.
- Coils are clean enough
What could be the issue?
- Capacitor
- Less Freon
Great video. How significant is having boxes and other things under the return for the inside unit? Will it affect the temperature and/or the intensity of the air flow.
Nice video~ Mine issue is a litle bit weird. the Airflow is ok when turn on the heat but only little airfow when only turn on fan or turn on AC. Have some technicians here to check but missed to tell me the cause. It would be very grateful if you could help to analyze.
Thanks for this great video! I think I have problem #3. The AC periodically stops cooling while the system is running. It's 17 years old and we had a hard start kit installed close to 10 years ago. Can the hard start kit fail with age too? All I do to get it cooling again is turn the system to off for 2 seconds, then back on.
One thing you could've addressed is humidity. When I built my 5000 sq. ft. house, I had a mechanical engineer friend calculate the size A/C I needed. Since my walls are 16" thick, super insulated, he figured I needed only a 2 ton condenser (but with a 3 ton coil)! Man, it worked great, the A/C ran a LOT, but you could hang meat in my house. The air was so nice and dry, which makes if feel even cooler. I live in muggy central Illinois. After 20 some years, it finally conked out and the technician replaced it with a 3 ton unit. I tried arguing with him, but to no avail (maybe 2 ton units were hard to get, or he didn't have any in his warehouse). Now the A/C "short cycles", it gets the house down to setpoint in a hurry, but the air is still wet. It's a cold, clammy air, not very pleasant! I would always recommend undersizing the condenser in muggy climates.
Interesting. Well, now that your new 3-ton doesn't run as long as the old 2-ton did, you are saving electric. . In which case, you could buy a dehumidifier for the house and run it near the air handler? I dunno, just a thought :)
OMgoodness Thank you
I really like your videos on repairs on AC.
My problem is that the outdoor unit is has a squeeze noise coming from the fan now it stated low and it gotten longer and loud not super loud though anyways
I turned it off.
Wow. This is the best Uber ac video of all time! Thanks for sharing your wisdom. :)