Excellent job on the video ! There are 2 points that you didn’t bring up that are very important to keep in mind. First - the most common cause for compressor motor winding degradation is moisture and taking meg readings over time can reveal the effects on the windings. Second - the lowest allowable resistance to ground for a motor winding is 1000 ohms per volt , ie if a motor runs on 480 volts then the lowest allowable resistance to ground must exceed 480,000 ohms. Just food for thought and keep making great videos !
Good solid points. 2nd point is the reason I prefer a meter like this that actually displays a resistance value vs the supco that I seem to see more guys using. I don't recall if I mentioned it in the video or not, but I've had 480v motors running as low as 2 M ohms to ground and have been for years, so its good to be able to trend any winding degradation. Thanks for the comment and for the support!
Thank you for the video, Great refresher as I've been away from this type work for 40 yrs or so. (been dealing with mostly automotive during this perion MOSTLY dc. now it going back and forth w/ electric cars!)
New to your channel, great videos! Theory behind the work is definitely important as it is using the tool to fix stuff. 7 years in the trade and never a dull moment! Stay safe~
Great video! When it comes to condenser fan motors and compressors I do believe in spot checking windings due moisture. I had a string of false readings with my ohm meter on ground checks. After a rain fall I would get call back as condenser unit tripped our. Long story short I purchased a used mint condition fluke 1520 tester. Megger would have exposed the winding insulation nick or breakdown. I see many techs with that supco tester but I would recommend that klein ET 600 tester for hvac guys. Or if you can spring the cash the fluke 1587 IMO. Thanks for the video again!!!
VERY informative tutorial! I have a 40-year-old system in which the blower motor died (bearings seized). This video worked great for determining Common, Run and Start. HOWEVER, all the potential replacement motors I can find have either just TWO leads (no Start?) or several leads - one Common and several speed selector leads. These, of course, are in addition to the two capacitor leads. How can I match my older control system, which has Common, Run and Start leads, to one of these new motors? Or is that not feasible? THANKS!!
Hi, Great video. Could you test a few multimeters and insulationn meters for u to all see. Im over in the UK and we see any different makes but not sure if any are good. Also could you do a windings test on a 12v and 24v motor please
The motor I have only has two wires and does not have a capacitor. It’s a single phase motor with I think a clutch relay. Between those wires I got 1.2 ohms. Is that a short?
Draw a sketch of the terminals and take ohm readings to determine which winding is which by values found _____/ 2 c 022.1 029.5, these 2 should add up to the value of r - s __1 r / 3 s 051.2
I prefer this one over the supco this has multiple voltage test ranges 250, 500, and 1000v and tests up to 2000M ohms. The supco has just the 500v test up to 1000M ohms but will work just the same. Either one will get you to where you need to go.
What if im getting the same resistance for my high and low. Breaker keeps tripping when sw is in off position. 1phase 1/3 hp motor. Motor runs on hi and low but when switched off trips breaker. Thanks and be safe!
I have an RV furnace motor. I have a multimeter. Forgive me. I must be not very bright. But I have the motor removed from the furnace unit. I have no ground on the motor itself and I have a red and black wire. My meter has an ohms dial from 200 to 200 M. How do verify that this motor is ok?
Excellent job on the video ! There are 2 points that you didn’t bring up that are very important to keep in mind. First - the most common cause for compressor motor winding degradation is moisture and taking meg readings over time can reveal the effects on the windings. Second - the lowest allowable resistance to ground for a motor winding is 1000 ohms per volt , ie if a motor runs on 480 volts then the lowest allowable resistance to ground must exceed 480,000 ohms. Just food for thought and keep making great videos !
Good solid points. 2nd point is the reason I prefer a meter like this that actually displays a resistance value vs the supco that I seem to see more guys using. I don't recall if I mentioned it in the video or not, but I've had 480v motors running as low as 2 M ohms to ground and have been for years, so its good to be able to trend any winding degradation. Thanks for the comment and for the support!
Tell me you are dumb without telling me you are dumb
Congratulations Andrew! Prayers to everyone during this crazy time. I hope everyone is staying safe. Thank you for your videos
Thanks for the support!
Thank you for the video, Great refresher as I've been away from this type work for 40 yrs or so. (been dealing with mostly automotive during this perion MOSTLY dc. now it going back and forth w/ electric cars!)
New to your channel, great videos! Theory behind the work is definitely important as it is using the tool to fix stuff. 7 years in the trade and never a dull moment! Stay safe~
Thanks man appreciate it! Always a good time for sure.
Well said Martinez 👏 👌
Great video!
When it comes to condenser fan motors and compressors I do believe in spot checking windings due moisture.
I had a string of false readings with my ohm meter on ground checks. After a rain fall I would get call back as condenser unit tripped our. Long story short I purchased a used mint condition fluke 1520 tester. Megger would have exposed the winding insulation nick or breakdown.
I see many techs with that supco tester but I would recommend that klein ET 600 tester for hvac guys.
Or if you can spring the cash the fluke 1587 IMO.
Thanks for the video again!!!
just found your channel, ill be watching them all thanks
Thanks man! Appreciate the support!
Excellent, to the point,love this video
Well demonstrated mate, thanks
VERY informative tutorial! I have a 40-year-old system in which the blower motor died (bearings seized). This video worked great for determining Common, Run and Start. HOWEVER, all the potential replacement motors I can find have either just TWO leads (no Start?) or several leads - one Common and several speed selector leads. These, of course, are in addition to the two capacitor leads. How can I match my older control system, which has Common, Run and Start leads, to one of these new motors? Or is that not feasible? THANKS!!
Excellent informative video, sir. I do use Supco Megaohm and extech looks nicer. Thanks for sharing ! And stay safe.
Thanks you too!
Awesome video brother! Solid content as always 👊🏼
Thanks for the support Brother! 👍👊
Hi, Great video. Could you test a few multimeters and insulationn meters for u to all see. Im over in the UK and we see any different makes but not sure if any are good. Also could you do a windings test on a 12v and 24v motor please
Great explanation. Thanks for the video
Thanks for checking it out!
The motor I have only has two wires and does not have a capacitor. It’s a single phase motor with I think a clutch relay. Between those wires I got 1.2 ohms. Is that a short?
Draw a sketch of the terminals and take ohm readings to determine which winding is which by values found
_____/ 2 c
022.1 029.5, these 2 should add up to the value of r - s
__1 r / 3 s 051.2
Pretty cool how you explained it. Are you gonna get the supco megohmeter or do you prefer your extech?
I prefer this one over the supco this has multiple voltage test ranges 250, 500, and 1000v and tests up to 2000M ohms. The supco has just the 500v test up to 1000M ohms but will work just the same. Either one will get you to where you need to go.
What if im getting the same resistance for my high and low. Breaker keeps tripping when sw is in off position. 1phase 1/3 hp motor. Motor runs on hi and low but when switched off trips breaker. Thanks and be safe!
What type of multimeter and me go meter are you using please.
Good videos brother. Awesome content
Thanks buddy! Appreciate that 👊
Is it problematic if 1-2 and 2-3 are the same, even if they still add up to 1-3
Nice demonstration
Thanks appreciate it!
Nice video.
Thanks man!
nice video
Thanks man! 👊
Thank you
It would be better if we could see the motor and where you are putting the test leads
👍awesome 😁
Good video.. Thanks.. But, why you don't have proper lightings!
I know! Working on that. Thanks for watching
I’d like to see you test a motor. Not three screws in a board.
I have an RV furnace motor. I have a multimeter. Forgive me. I must be not very bright. But I have the motor removed from the furnace unit. I have no ground on the motor itself and I have a red and black wire. My meter has an ohms dial from 200 to 200 M. How do verify that this motor is ok?
Does it run off 12 volt?
@@rojobandito318 yes
I got distracted from him keep popping the cap from his pen and closing it.
Who are you talking to?