Bad Refrigerant Compressor? Explained and Tested in the Field!
ฝัง
- เผยแพร่เมื่อ 29 เม.ย. 2016
- This is a Service Call where I found a Bad Compressor by checking for continuity from the compressor terminals to the grounding circuit. The breaker was popping immediately when turned on. I explain where I started testing and where it took me along with how to diagnose the problem with a multimeter.
Tool List- www.amazon.com/shop/acservice...
Support- / acservicetech
Our Inverter Mini Split Resources:
Mini Split Book on Our Website- www.acservicetech.com/mini-sp...
Mini Split Paperback on Amazon- amzn.to/3ytHJSs
Mini Split Paperback on TruTech Tools- www.trutechtools.com/BooksGui...
Mini Split E-Book on Google- play.google.com/store/books/d...
Mini Split E-Book on Apple- books.apple.com/us/book/id644...
Our Single Speed and Two Speed Air Conditioning Resources:
My Paperback and E-Book: www.acservicetech.com/the-book
My Paperback: www.amazon.com/shop/acservice...
Read the book reviews on Amazon!
Check out our new Articles at www.acservicetech.com/articles
Support the Channel by purchasing tools through Tru Tech Tools!
Use this link www.trutechtools.com/?Aff=8
Save 8% at checkout using code "acservicetech"
Supervision is needed by a licensed HVAC Tech while doing this as Experience and Apprenticeship garners Wisdom and Safety.
All of the ACSERVICETECH Playlists- / @acservicetechchannel
If you want to support the ACSERVICETECH Channel and receive more HVAC content, check out www.Patreon.com/acservicetech
ACSERVICETECH is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.
You can enter Amazon through this amzn.to/2aenwTq
The above link happens to be the Gauge Set that I use in my refrigerant videos but you can search from there.
Here is a link to the UEI DL389 Multimeter used in the video amzn.to/2xAdaJf
Here is the link to the Fieldpiece SDMN6 Dual Pressure Testing Manometer with Pump-amzn.to/2jyK5Ka
Here is a link for the Supco Magnet Jumpers amzn.to/2gS4h6z
Here is a link to Refrigerant hoses with valves used in the videos amzn.to/2aBumVI
Here is the Link for the Yellow Jacket Refrigerant Manifold Gauge Set used in the videos amzn.to/2aenwTq
Here is a link to the Digital Refrigerant Scale used in the video
amzn.to/2b9oXYl
Here is a link to the Imperial 535-C Kwik Charge Vaporizer for Charging Refrigerant- amzn.to/2oge0u9
Here is a link to the thermostat 3/32 screwdriver -- amzn.to/2hxt7uK
Here is a link to the C&D core removal tool amzn.to/2bFpobQ
Here is a link to the JB 6 CFM Vacuum Pump amzn.to/2nqbvo8
Here is a link to the JB Platinum 5 CFM Vacuum Pump with Valve
amzn.to/2mGKcSh
Here is a link to 1 gallon of JB Vacuum Pump Oil amzn.to/2mGrlXy
Here is a link to the Supco Vacuum Micron Gauge amzn.to/2bH98bO
Here is a link to the 1/4" by 1/4" female coupler from Supco - amzn.to/2kFrbU9
Here is a link to the Hilmor 4 port Aluminum Manifold Gauge Set-
amzn.to/2m4QLik
Here is a link to the Supco core removal tool amzn.to/2brEJco
Here is a link the Nitrogen Regulator amzn.to/2bXdR5f
Here is a link to the Nitrogen Flow Meter amzn.to/2brvoBg
Here is a link to the General Tools digital Psychrometer
amzn.to/2cSHsi1
Here is a link to the Amprobe Digital Psychrometer amzn.to/2d7cGkW
Here is a link to the Fieldpiece SDP2 Digital Psychrometer- amzn.to/2nniMVR
Here is the UEI Digital Manometer used in the videos amzn.to/2c1XkiT
Here is the link for the Ratcheting Service Wrench amzn.to/2dGV4Nh
Here is a link to the Appion G5 Twin Recovery Pump amzn.to/2dGSEyr
Here is a link for RectorSeal Bubble Gas Leak Detector amzn.to/2ckWACn
Here is a link to the air acetylene torch setup- amzn.to/2aQalsb
Here is a link to the Malco Snap Lock Punch amzn.to/2cY53Ag
Here is a link to the Wiss 3 Pack Tin Snips amzn.to/2bHWhWO
Here is a link to the Wiss 5 Blade Crimper amzn.to/2bwTlsW
Here is a link to the Wiss Hand Seamers amzn.to/2dRk83v
Here is the link for the Hitachi Lithium Ion Drill and Flashlight kit amzn.to/2dzNgkL
Here is the link for the Irwin Wire Stripper/Cutter/Crimper amzn.to/2dGTj2V
Here is the link for the Hilmor 12" folding tool amzn.to/2d9VTPR
Here is the link for the Malco 3" Blade Combination Snips amzn.to/2dz7Ejc
Thank You,
ACSERVICETECH
![แฮงแงงแฮงงาม - บอย ศิริชัย [OFFICIAL MV]](http://i.ytimg.com/vi/vCGJTy9ZeP8/mqdefault.jpg)
Our Inverter Mini Split Resources:
Mini Split Book on Our Website- www.acservicetech.com/mini-split-book
Mini Split Paperback on Amazon- amzn.to/3ytHJSs
Mini Split Paperback on TruTech Tools- www.trutechtools.com/BooksGuides?aff=8
Mini Split E-Book on Google- play.google.com/store/books/details?id=HN-iEAAAQBAJ
Mini Split E-Book on Apple- books.apple.com/us/book/id6445178399
Our Single Speed and Two Speed Air Conditioning Resources:
My Paperback and E-Book: www.acservicetech.com/the-book
My Paperback: www.amazon.com/shop/acservicetech
Read the book reviews on Amazon!
Check out our new Articles at www.acservicetech.com/articles
Support the Channel by purchasing tools through Tru Tech Tools!
Use this link www.trutechtools.com/?Aff=8
Save 8% at checkout using code "acservicetech"
Tool List- www.amazon.com/shop/acservicetech
Support- www.patreon.com/acservicetech
For those that are looking for the tools used in the videos: (Linked Below)
Here is a link to the UEI DL389 Multimeter used in the videos- amzn.to/2av8s3q
Here is a link to Refrigerant hoses with valves used in the videos- amzn.to/2aBumVI
Here is the Link for the Yellow Jacket Refrigerant Manifold Gauge Set used in the videos-
amzn.to/2aenwTq
Here is a link to the Hilmor 4 port Aluminum Manifold Gauge Set-
amzn.to/2m4QLik
Here is a link to the Digital Refrigerant Scale used in the videos-
amzn.to/2b9oXYl
Here is a link to the Imperial 535-C Kwik Charge Vaporizer for Charging Refrigerant- amzn.to/2oge0u9
Other tool links can be found in the video description section.
ACSERVICETECH is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.
Great Question! Continuity meaning the wires are touching the ground. If any of the wires that you are powering with voltage are touching the frame then the breaker will immediately pop do to high amperage from a direct short. You should however have resistance from one winding terminal to each of the other two winding terminals. Check out the video on checking a condenser fan for more on measuring resistance on 240v psc motors such as a compressor or condenser fan motor. Thank you for your Comments, they are appreciated!th-cam.com/video/DmFSQbowYIg/w-d-xo.html
No problem, glad to help! Check out other service videos at the ACSERVICETECH Channel th-cam.com/channels/OZR-1IqsAer9wzlvFgb4mA.html
excellent video!!!
i believe one can check from the common to run winding and get a reading and then from common to start winding. add the readings and if that matches the reading between the start and run winding the compressor is good as long as no reading to ground in this instance. Great Video!
That is correct! Thanks
Awesome vid man!
Thanks a lot Marcus, I am glad that you are enjoying them!
I purchased your book as general contractor. We have gone through four HVAC techs that don't seem to be able to install a mini split heat pump properly. One unit has a bad compressor and my plumber will be replacing a compressor in a Midea split. He is suggested we do an R-11 flush in the system because of acid build up. My initial research is showing me that method is old and not longer suggested in new systems. Do you have any thoughts on this?
Why is it bad when you check the continuity from the start winding to ground? I thought when there was continuity it meant it was good. Can you please explain more about that. Thanks.
usually replacing a compressor is costly. That is when you look at the age of the unit itself and ask the customer if they want to replace the compressor only or the unit. If the compressor is bad on a new unit or does not operate, part may be under warranty.
Yes sir!
In my area in Easley sc I rarely ever see one anymore.
You rarely see any bad compressors? I see them bad for even the simple instances of where people install bad digital thermostats without 5 minutes delays and the compressor keeps getting called before it even reaches 5 minutes from when it shuts off to when it turns on. Other instances are bad oil return, acid build up, or fin degradation. You probably just have the luck of the draw not to see them. Thanks for the comment Phillip!
What if I get 315 k ohms to ground but no continuity and the other two leads have 25 m ohms but again no continuity to the ground
Make sure you disconnect the wires of the compressor from everything else before testing and you should read 0.L Maybe also double check with another meter. If this is powered, does it just pop the breaker or fuse? If so, the compressor is shot, but make sure the compressor is disconnected first before testing, thanks
AC Service Tech LLC yes the breaker was tripped when I arrived, capacitor was dead I replaced the cap and tested the bare terminals before turning it on. I was getting ohms on all three to ground and when testing across the terminals I was getting crazy high resistance and it wasn’t Adding up.. when trying to start the unit the fan was running and the compressor wasn’t but the breaker wasn’t tripping. I condemned the compressor although a continuity test never made a sound to ground. Just a little confusing because resistance to ground should trip it and resistance should show continuity. Any thoughts on this would help. thanks man huge fan of your channel..
I never use continuity because it is not as specific as looking at the resistance. It will only beep once if it is up past a certain ohm reading, thanks
Thnx for your many informational videos. Always enjoy them... My AC compressor will not start & it is not shorted to ground. I get a really low amp draw < 2 amps during test. Is that possibly sign of bad compressor? Trying to determine if the compressor can be revived :o(...
If your resistance readings are good and windings are not shorted to ground, you could try adding an SPP6 -amzn.to/2BdyFX8- to see if that will give it the extra power it needs to start. Make sure it is getting a good voltage and has a good capacitor before that, thanks
AC Service Tech LLC
Capacitor was first i cked & no issue. It did cross my mind to ck resistance after the fact. However, I did try the 521 hard start kit but it still would not budge :o( appeared most likely a shot compressor. Input anyone?
Thnx... Voltage across contactor cked out fine as well.