How to Check HVAC AC Compressor

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How to check the compressor on a HVAC AC unit. This video will show you how to test and verify an air conditioner compressor using a multi meter to see if it is bad or not. A good compressor will have resistance readings that balance out whereas a bad compressor will read O/L or it will be shorted to ground/have continuity between one of the windings and ground. Since air conditioning will not work at all with a bad compressor, this is vital information for anyone diagnosing a condenser unit compressor.
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#hvac #airconditioner #airconditioning #wordofadvicetv

Опубликовано:

29 сен 2024

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Комментарии : 372

@WordofAdviceTV 6 лет назад

Hey guys! If you think the video starts kind of abruptly, you think correctly :) I accidently deleted the intro portion of the video from my computer. You’ll have to forgive me for not wanting to re-film it. Here is the script for the missing part if you are curious to know what you missed out on: "In my AC fixing videos, in the comment sections, often times I explain to people how to check their compressor to see if it’s bad or not. I finally decided to make a video of how to check your compressor which I can reference people to instead. Before we begin, I just want to make sure that you checked your capacitor before you start suspecting that your compressor is bad. If the compressor capacitor is dead, the compressor will not start. The capacitor is the silver cylinder looking thing right here. (points to the capacitor) Since this video is about the compressor, I wont be explaining how to check and replace the capacitor right now. I do have a video that shows how to do that though, it can be found in this video’s description. After you have verified that the capacitor is good…. (This is where the video begins) How to Check and Replace a Capacitor: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9ZGfvC-PMWU.html How to Troubleshoot A/C Step by Step: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wzAA4dlp_70.html

@jaquiebean8669 3 года назад

HIM: make sure you check for voltage again a third time because I don’t want you dead’ ME: carefully placing the screwdriver on the grass, walking slowly back to my phone to call a tech. Decided to live another day for a different battle. Know your limits. Lol

@sunset3052 3 месяца назад

🤣🤣🤣

@hassanjamila 3 месяца назад

Thank you for this informative tutorial. Everything checks OK on my AC unit. The A coil and filter are clean. Freon pressure is good. Compressor kicks in and cools for about 2 minutes, 55 °F at the register and 72 at the return, then the register temp will gradually climb to about 67 °F and stays that way. What should I check for next?

@PJ-ee5mc Год назад

Great info. Thank you. I do have a quick question though: My heat pump's compressor reads as follows (at the unit itself): C+R = 1.0. C+S = 1.2 R+S= ONLY 1.4 when it seems that it should add up to 2.2 based your example. Does this mean I have a potential problem with my compressor?

@davidlaws1438 Год назад

I have a question sir, if my compressor is bad, and I know it's bad, burnt up, do I have to replace my entire system, ie, my outside heat pump unit, AND my furnace unit. Is my entire system contaminated?? Thanks ..

@jts4248 3 года назад

Awesome 👌

@michellewhitehead3507 Год назад

what if the connector blows out of the compressor

@Smashachu 5 лет назад

Don't forget to short the leads on the capacitor, in older models they don't have a discharge resistor built in and can store a deadly charge.

@tillerdogg3232 Год назад

I wouldn't say deadly

@boduke2299 Год назад

@@tillerdogg3232 I would

@MrN75nokia 7 дней назад

I would too

@omma-llama7860 5 лет назад

Hi. I'm posting here to say "Thank You!" ... you see we had been told by a local contractor that out old r22 condenser was shot and our entire system needed to be replaced. I came across your videos while doing my own research, and after watching about four or five of your videos on outside units, I was able to go outside and, for about $20 in parts get my old one working again. In my case, I had a bad 5 minute delay board. I much prefer to bypass the board then spend 6500 on a new system. I know it's coming in the future, but I'd like to get as much life out of this old system as I can. Thank you so very much.

@WordofAdviceTV 5 лет назад

You're welcome! Happy to hear that your unit lives on! May it have many more good years before it retires ;)

@chris.5434 2 года назад

Now that same system cost almost 10k if not more. You waited to spend more money later.

@mwjr2135 Год назад

I know I’m late but how do you bypass the board.. I’m going look it up. You telling me won’t hurt anything.. Thanks in advance.

@bingoboppins9875 Год назад

How much longer did that last you?

@Jon-fj7yk Год назад

Post video how to by pass board

@georgepapasozomenos6336 3 года назад

VERY VERY GOOD YOUR THE ONLY ONLY ONE EXPLAINED VERY WELL THANKS A LOT

@marshallvincenzo3514 3 года назад

Instablaster...

@jaybeliever1479 3 года назад

Near the end of the video, when you tested the pins to ground, it looks like you had the meter set on Volts, not ohms. Your readings of 0.00 was volts. If it had been ohms, you should have seen OL. Right? But thanks for the very informative videos.

@aaabeverages7152 3 года назад

Yes . If its open you get infinity. If its shorted, then it will have impedance resistance of a low value or zero. Open circuit on compressor coil should be 0. Short to ground is less than 1

@susammachacko4445 3 года назад

@rachaelflaharty 9 месяцев назад

Thank you very much! My Husband was able to check the wires, and one was burned. He was able to replace it and fix it for free!! 😊

@jimbola77 6 лет назад

smart kid thank you for sharing their partner a good job, God Bless!!!!!!!!

@SakeEgo Год назад

Spent 5 hours just to learn that my contactor was bad. Only guy that showed me that in my search, thanks.

@lengnuan913 4 года назад

C-R should be the lowest reading 1.6, not the C-S

@davidjenkins7631 4 года назад

I agree, also start and run should be your highest reading💯🤔

@bsargent2065 Год назад

THANKS TO ALL YOU RU-vid folks that take the time and effort to help us DIY folks. You probably have no idea how much your information is used and has helped others find out whats wrong and how to fix or investigate it. THANK YOU THANK YOU THANK YOU.

@OrlandoLopez-o5w Год назад

😎 CKJ you're keeping a lot families stay cool. Without having to pay the Freon Gypsies. That over charge the compressor. Then 6 to 8 months later thier coming back to replace the capacitor and possibly the contactor. You saved allot of families allot money. Great teaching capabilities. You're living proof their is GOD.

@MrN75nokia 7 дней назад

Where are the Freon Gypsies

@aceburns8673 6 лет назад

Have the company come out and pay the service fee. Let them find the problem, thank him and pay him the service fee. Proceed to fix it yourself and if your nice they'll often times walk you through it. Saved big bucks this way

@GailS.7777 2 года назад

That does not sound realistic. How would you know what part u need to have on hand while the tech is there and thinking he will wait is wishful thinking. Unless it is something that did not require a new part....

@InsideOfMyOwnMind 5 лет назад

Was it my imagination or my screen or was that condenser coil absolutely filthy?

@Froggability 4 года назад

What a crazy place to mount the compressor! Bit tricky to check the terminals

@frankhernandez7827 4 года назад

Thank you for sharing your knowledge. From a new home owner you have no idea what this means. Saving homeowners money is a blessing especially in a time like this. Thanks again for your time and God Bless.

@hildyr1052 2 года назад

Y0u seem honest , where are you located

@carlosa.avalle528 3 года назад

I've done a lot of DIY repairs in my life but had never tackled AC problems before. AC systems are pretty intimidating but with your videos I was able to isolate the problem to the control board in the attic. A loose common wire may have been the culprit that would only manifest itself on the hottest days, intermittent problems are the worst. After hours of chasing the problem a simple turn of a screwdriver did the trick. I could not have done it without your videos. My hat off to you and I will be sending a contribution to your channel as I figure it has saved me hundreds. Thank you!

@HansDelbruck53 Месяц назад

The voltage reading on your meter also depends on whether your meter has been calibrated or not.

@T3chGuy007 4 года назад

I just want to say that your channel and especially all of your air condtioning videos are extremely informative, helpful, and easy to understand. I've watched all of your AC videos and this has allowed me to change my capacitor and contactor without having to pay someone to do it! Unfortunately, my 15 year old AC has died once again and after watching this video, I believe it is my compressor. I have continuity on all three pins to ground so I think it's time for a new AC unit. Anyway, thank you again for uploading such awesome videos! Keep up the great job!

@justnowchannel8525 3 месяца назад

Hi My ac fan outside is not spinning. I just replaced a new capacitor.

@benjamintimmins1656 5 лет назад

I think you got it backwards. Start is the highest resistance followed by run, then common...

@davidjenkins7631 4 года назад

That's what I thought also💯🙊😁

@immortalpahak 4 года назад

cs=2.1 , cr=1.6

@billsmith2212 3 года назад

On a commercial dishwasher , the contactor on the hot water booster was chattering . 208 Volt , 3 Phase , about 40 Amps . He pressed the button in on the contactor with an insulated screwdriver . A " lightning ⚡ bolt " hit the unit , flash and smoke ! I jumped at least 5 feet . Wet tile floor and S/S dish tables . The manufacturer said some of the heating elements must have been shorted . Mortal terror !

@BinhLe-qw1eb 6 лет назад

Very informative. Keep up the good work.

@SteveV2023 2 года назад

When checking the pins to ground, have the meter on ohms, not volts!!

@raybaker3578 6 лет назад

Thanks for the video saved me the cost of a weekend service call ( bad contactor ) I did not know about the test button!

@ronslaughterandalice1018 5 месяцев назад

Just a question,,,,, if the compressor is running , couldn’t person tell it’s running by sight and feel ?

@WordofAdviceTV 4 месяца назад

Usually sound alone is enough to tell if it is running or not. The rumbling of a compressor sounds different than the condenser fan.

@Noelg14 5 лет назад

I actually learned something right now. Thank you dude keep making these awesome HVAC videos

@WordofAdviceTV 5 лет назад

Glad to hear that! :) Thank you for watching and commenting!

@jollyscaria1922 Год назад

Vrey good seftey

@losmoore3358 12 дней назад

Around ball park figure how much is the cost to replace a compressor ?

@WordofAdviceTV 7 дней назад

Typically about half the price of a new unit... Which is why people often end up getting a new air conditioner instead.

@christopherloeppke4778 3 месяца назад

Dude, great video, super clear. Thanks.

@Yuri-wm5mj 2 года назад

I need help! Our A/C unit stopped working suddenly. Our thermostat runs, our Furnace turns on, but the air that it’s blowing in is room temp. everything inside seems good, but the outside unit just won’t turn on. No humming noise, nothing. We pushed in the plunger and the unit will turn on. So it has power. Something is just causing the plunger to not push in. We tried changing the capacitor and we had the same issue. We replaced the batteries in the thermostat as well. What could be wrong? Help!

@WordofAdviceTV 2 года назад

This video should be able to help out with that: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-NVPhsK4gK1A.html

@gjurczyc Месяц назад

remember current flows, not voltage.

@0363677477209 5 лет назад

Hi Very well done...but... also It will help the technician on the spot is ; to speak with the people with the problem ; they will be a better help (history of the equipment) and see if the compressor is tripping the breaker ( this is the second step ) ; third make sure to advice to NON technician ; you know " weekend warriors" DO NOT TRY THIS AT HOME unless they know what are you doing.

@pianduchuance859 2 года назад

Question three phase compressor should be all the same readings between all whinings

@robertanderson950 5 лет назад

Good afternoon, how are you? please make a video on a circuit board with multiple zone thermostat, how does it work? how to troubleshooting it. have a great day

@behr121002 5 лет назад

Dude,.. if you have no continuity/no signal/no sound, you don't have a short/short circuit (at least not between those terminals), you have and OPEN circuit.

@WordofAdviceTV 5 лет назад

Thank you for the correction!

@fernandoescobar692 3 года назад

Hey a quick question how do you check if your thermo overload is open ?

@WordofAdviceTV 3 года назад

The thermal overload is at the common terminal on the compressor. So if it opens, you will not have resistance/continuity between Common to Run winding and Common to Start winding. Long story short, disconnect the 3 wires that come from the compressor and simply check common to either of the two wires. If there is continuity, thermal overload is closed. If not, then it's open.

@fernandoescobar692 3 года назад

@@WordofAdviceTV thank you 😊🙏

@joshevans969 4 года назад

Thank you so much for these videos I was able to diagnose and fix my AC and only cost me $26 for a new thermostat

@rizwanrafeek3811 2 года назад

My home AC was working ever since we moved into our house for last 7 years. I hired a guy to move AC from back of the house to side of the house. When move was completed, the hired guy said, your compressor is not kicking in, which worked for last 7 years, after all of sudden it does not work. When AC is turn on within 10 or 15 seconds I hear noise like sudden clutch noise, the noise is sound of compressor is turning itself off, while the blower and fan above the compressor is working. All these years my AC worked and after the move the AC it does not work. I don't know what to do, who to trust.

@DaLeSy. 6 месяцев назад

What do you do if it IS shorted to ground? Is there a way to fix that?

@WordofAdviceTV 6 месяцев назад

Unfortunately there's nothing you can do, the compressor is shot and the best solution is a new air conditioner.

@ednovak6060 6 лет назад

Thanks for all of the videos

@SunShine-jr5qh 6 лет назад

Future AC/Refrigerator here. Thanks for the videos. They do a “ Ton “ pf help.

@dmonmitchell1357 2 года назад

Your videos helped me out of confusing problems! Thanks bro!!!

@okegs4real 3 года назад

Are compressors interchangeable? My condenser is ssx140421cb with compressor ZP31K5E-PFV-830 which has gone bad. I bought part ZP42K5E-PFV-800 as a replacement. Will this fit without any issues or cause damage?

@josuealvrado6348 4 года назад

What do I do if I get readings when I short it to ground?

@srobeck77 4 года назад

He covered that in the video. It means the compressor has to be replaced.

@josuealvrado6348 4 года назад

Shawn Robeck thanks I was able to change the compressor 👍🏽

@tonyafarhad3063 4 года назад

ok i have central air central heat but no furnace???? my ac fan is not froze moves freely but doesn't turn on! I have reset all breakers and still nothing???help please I am in florida and its almost 100 in my house! I am dying!!

@Artlopez105 2 года назад

On my a c unit I changed the contactor the fan motor and the capisitor it makes a buzzing noise for a second then clicks off nothing happens. I'm not sure what it may be.

@bitwoodcnc7545 5 лет назад

My compressor is leaking from where those 3 wires are on the compressor , my tec says the compressor is blown before checking volts , it cost like $900 so i dont know

@WordofAdviceTV 5 лет назад

If it is leaking from the compressor pins then I would also say there is no need to check any further..

@heltenaikuj6123 Год назад

thank N how i meet you bro

@devinhigdon8165 3 года назад

and my outside fan continues to shut off and it doesn't sound like my compressor is running should my contact and still be turned what would it still be sucked in even though neither one of them is running

@Progress24.7 3 года назад

Your checking Volts @ 10:30 . When it should be continuity 🤣 Good video though. Keep up the good work

@coronavirus1774 Год назад

*You’re not Your

@joeseay2883 Год назад

Instead of noting , why not take a picture while you're focused on it.?

@dezmengovan7794 3 года назад

Awesome job you explain everything very well.

@shafiqurrahman3738 3 месяца назад

Dear Brother, In my case the reading between C (common) & S (start) is 5.8 ohm; C & R (running) is 3.2 ohm; but the reading between S & R is 7.8 ohm. Is my compressor OK?

@RicardoRamirez-yj3sx 3 месяца назад

Someone had already told me this method but wasn’t too sure if it was really accurate. Watching your video really helped. Thank you sir keep up the good videos. Well appreciated

@Mike-we3rb 3 года назад

Gonna recharge system tomorrow after compressor replacement. They said the compressor is prefilled. Does that mean I don’t have to add any more oil at all? Like does that prefill mean that’s all the systems oil in the compressor or just what the compressor needs itself

@josealfaro888 Год назад

I am an electrician. I love your videos. Thank you.

@thuantran4804 19 дней назад

My resistance measures 1.2 ohm, 2.1 ohm, and 2.9 ohm. My condenser is currently not running. Capacitor was replaced. Ordering another hard start to see if it can help condenser to start. Does the resistance measurement mean that condenser is broken?

@danhughes4683 Год назад

Hi Jay. I love your videos, and even my 5 and 7 year old sons like watching them with me! Anyhow, I don’t know if you take questions, but putting one here in case you do!: I just replaced my capacitor (thanks to your other awesome video that does a perfect job breaking down how to do that), but now it seems to me that my problem is either the wire connection to the compressor pins, or maybe a totally dead compressor. The fan starts up as it’s supposed to, but the compressor is inactive (no initial compressor “startup attempt” buzzing or anything when the fan starts). Yesterday I took the wires (rubber plug) off the compressor pins, and found that the rubber of the plug had some considerable melting around the plug’s holes to the wire leads. I removed the melted rubber and cleared out those holes to ensure the leads’ connections would be good, and then after I did that and set everything back up and started the AC, the fan turned on (as usual) and I got a big visible spark at the compressor plug. But after that first startup where I got the sparks, for the following startups attempts only the fan started and there was zero activity around compressor startup (as usual). Do you think it’s a dead compressor, or maybe something more simple/less costly to replace (like maybe a new wire/plug)? I don’t own a multimeter, can will buy one if that’s what I need to do to know for sure. Thanks if you do have time to offer an opinion/suggestion!!

@gaylefriedman3773 Год назад

My Compressor is running constantly. After my A/C unit stopped, the outside unit is still running. What could cause this to happen? I smell a rubber sent. Need immediate Assistance. This unit is on the Roof. Thank You! 👩🏻‍🦰👆👍

@DaLeSy. 6 месяцев назад

Question. I tested it the way you showed in resistance (the horse shoe) using alligator clips on my meter for better contact. The first reading gave me these numbers: 4.1, 1.3, and 3.5. And the smallest two numbers added up doesn't equal the highest number. The highest number was 4.1, and the other two added together would be 4.8. But you did say it could be one or two off. But I don't know if you are talking about the number before the decimal point, or the number after. Does that sound good or bad? I tested it a second time, and the second time I got these numbers: 4.5, 1.8, and again 3.5. And 1.8 + 3.5 = 5.3, so this time the number before the decimal point is 2 higher. Would that be good or bad? Also I am noticing that the black wire looks a bit burnt on the end, and there is a bit of rust on one terminal and one or two connectors. When I did the other test to see if it was shorted to ground, I am not sure what you have your meter set to for that test. It doesn't look like it is on resistance. It looks like AC volts. When I did that test in resistance or ohms I got the O/L for all three. But when I changed it to AC Volts. I got 30. mv for each one when one of the wires was connected to the pipe. O/L when touching the compressor where I scratched it. (Btw, I already tested the capacitor, contactor, and fan motor following your videos - they all tested good. It won't kick on, nor does the fan come on, but it makes a light buzzing sound that I could hear that some people wouldn't even notice. One time before that there was a popping sound when I turned it on. And the capacitor was leaking so I replaced it.)

@elleondejuda4681 14 дней назад

Wires “ check with OHMS ?” Compresor pins check with “ continuity?”

@TheHotCollection559 2 года назад

Best video for this that I have seen

@faustosalcedo7873 5 лет назад

👴😃👍👍hey kid keep making video it helping a lot of of do-it-yourself project air conditioning

@newton2366 3 года назад

My issue is not covered here there are two wires going into the bottom of the compressor through a tube. ???.

@jdubya3055 3 года назад

I'm assuming the contractor contacts are bad. Pushing on it creates a minor spark underneath the contacts. When turned on, the contactor buzzes pretty loudly.

@candetect7576 4 месяца назад

my technician said compressor is bad working hard causing AC to trip and said ac will run for 2 hours willl trip again. Well I had all fan turn off and other plugs unplug AC working just fine. every summer people tended to use more electric causing it to trip just have to cut back

@JohnHanley-z7z Месяц назад

The red (C) wire keeps burning up from the capacitor to the contactor, right at the contactor. I replaced the wire and the capacitor. 5 days later it happened again. Any ideas?

@farsali-nw4oo 2 месяца назад

Hello sir, if I find a damaged reciprocating compressor, can I replace it with a scroll compressor? Do you advise me on the best way to change the same compressor or change it with a scroll system? Thank you.

@coryevans7302 3 месяца назад

For you to do hvac work your outdoor unit looks like it belongs to a trap house

@tonyyayo2115 2 месяца назад

I really hope I have a capacitor issue instead of a compressor. Fan turn on but no cooling and I get a buzzing sound every few minutes from outside unit. Waiting for new 45-5 capacitor to arrive

@heber019 5 лет назад

you guys are amazing!!! I have to make some jobs with a new costumer and I literally had no idea how the aircon works till y saw your videos, now I feel more confident!! so the meaning of this text is THANK YOU and I wish you all the best!! course you have one more subscribed

@WordofAdviceTV 5 лет назад

Thank you! :) Glad you found the video helpful!

@trueforum378 4 года назад

Thank you for all your great videos! I have question for you: when you testing compressor to make sure there is no continuity of C,S,R with ground. you showed resistance reading of 0.00 0 usually means short circuit. The question is: shouldn't that be reading OL or open circuit? OR it should actually read 0.00 because the windings are connected to the casing? Thanks buddy I greatly appreciate it

@ptaweston 4 года назад

If you look carefully, you'll see that he accidentally left his multimeter on Volts, which is incorrect. It should have been set to either the Omega symbol for ohms or the continuity symbol. You're correct with your observations.

@NGHTVIS10N Месяц назад

what if my fan is kicking on when my thermostat calls for power but compressor isn't on? does that mean capacitor is fine? haven't volt tested yet just asking first

@jhguygih 2 месяца назад

Very good. My nest is saying is cooling but nothing happened. When i push that manually, it works fine. What could be the issue? How i test the proper cooling wire

@fernandodiaz5749 4 месяца назад

A question to the knowledgeable ones, on my ac unit when is turned on and once temperature is reached to cool the house, right after that point a humming sounds what I believe it comes from the compressor, every time the compressor is trying to cycle to maintain temperature, the compressor cycles with a humming sound like 8 to 10 times before start working as it should, it almost is like the compressor is having a hard time to start kicking in, the compressor was checked and it seems the instrumentation to troubleshoot indicates the compressor is ok, doing a little more research it seems the problem was the expansion valve, it was replaced last summer with a new one but the problem continues. The AC unit still works ok as longest the compressor cycles correctly after 8 to 10 attempts, summer is around the corner and I would like to get it fixed before this issue breaks something else on my ac unit. any suggestions what could be causing this issue? In advance thank you.

@flyonawall6521 Год назад

What a horrible place for a compressor if you need to work on it.

@chrisandrews8722 2 года назад

A quick question, a replacement of an compressor, can it cost over 3,000.00 PLEASE GIVE ME HELP

@Ray-wr2wr 11 месяцев назад

Hi What kind of multimeter is it?

@WordofAdviceTV 11 месяцев назад

That's a UEi: amzn.to/45pmOy2

@philliphall5198 2 месяца назад

New unit 5 ton carrier compressor locked and no warranty ?? Is it really 5 years because when installed they said 10 years ???😢

@cjbake3238 Год назад

If a compressor still turns on and you hear the humm Wouldn’t that validate that the compressor is Not bad and still is working?? Anyone?

@pastorshandonellis4682 Год назад

Great Video Thanks for your time and knowledge. We really Appreciate it.

@dwayne0t Год назад

It seems you have the meter set for voltage at the end while testing for continuity. "If you have continuity or resistance... then your compressor is shorted to ground" What SHOULD one see if the compressor is good?

@hvacplayer3238 4 года назад

How do you know if it’s just the thermal overload that’s open and not a bad compressor?

@mark.r8900 4 года назад

hi, can you check the voltage at the capacitor (HERM) terminal? how would you hook the meter? is it BLACK lead to ground and RED lead to herm on the capacitor? and what voltage reading should i get? thanks

@djj3ck 4 года назад

Wondering the same. I get a 350 on the fan, but 0 on the compressor. Is it the capacitor?

@PBS-nm1uu 5 лет назад

great presentation please keep them coming, love all your videos please do one on icp boards

@WordofAdviceTV 5 лет назад

Thank you! Videos on ICP boards are a little hard to make since there are sooo many different kinds. It's not like a contactor or a capacitor.. Maybe later on I can try tackling it. Thank you for the suggestion!

@ezq6664 5 лет назад

Good job kid..but start is highest reading...more windings which is more resistance

@KefirTView 2 месяца назад

Without digging into my compressor and instead checking the wires that lead from the compressor to the contactor, how do I know which wire is common, start and run?

@diannefleming1619 Год назад

Refrigerator compressor windings test Run winding .i Start winding 5.8 Run/Start 13.3 Is this bad?

@adrianhenning1431 7 месяцев назад

Hello I was confused on how to check the windings would checking winding 2 and 3 then 3 and 2 say the same ohm readings? Like you said at 8:35. I had thought we would read the windings from 1 to 2 then 1 to 3 then 2 to 3 to get the correct ohms?

@exsidus 11 месяцев назад

I have none of those tools to even attempt to check mines.. my unit started making a noise the other day.. haven’t been able to call some one to check it out.. don’t have the founds for it atm.. if it’s making a kind humming sound.. can that mean compressor?

@RobertEmbree-co7nl 3 месяца назад

In your video on the compressor wiring, there are two black wires also going to the compressor. Are these for the heater, and if they were not connected what would that effect? I found on my unit th at they were either rotted or cut , and if I reconnect them is there polarity to them?