York RTU Tripping The Breaker - Troubleshooting With A Megohmmeter
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- เผยแพร่เมื่อ 29 ส.ค. 2024
- The breaker on this York packaged RTU had tripped intermittently over the past year. I pulled out my megohmmeter to troubleshoot the issue and found some faulty crankcase heaters.%
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I am a fan of troubleshooting...
I love troubleshooting too!
Being quarantined right now and I enjoy making sure my brain is fill with more HVAC knowledge when I get back!
Thanks for watching, get it done!
Always wanted to see some one use a megger. I ran into a troubleshooting call where low voltage resettable fuse was tripped looked everywhere and used meter to find short but couldn’t pinpoint it. Finally on my third call back I got lucky and found the problem; it was the condenser temperature sensor shorted to ground. I bet if I had a megger I would of found it the firsts time. Good video!
Just before using a megger on low voltage components, you don't want any electronics to be hit by the high output voltage of the megger.
used this method today to locate a rubbed wire causing fuse to blow intermittently.it works.thanks!
Awesome
This is some next level Jedi stuff.
Gary , Great Video . Learned some new troubleshooting practices . Thanks Captain
Thanks Mike!
We just set up all our guys with these m500’s for using on PM’s. Great way to explain to the customer the condition of their motors.
Yes, and you can use it for so much more too.
Just be sure they know not to test through any vfds or boards.
Good finding. Thank you very much for your teaching
You're welcome
Thank u sir for sharing your knowledge🙏🏼
Hey, I'm trying!
You know your stuff. Good work.
Thank you
Interesting way of tracking the integrity of the wire or bad connections down to the underperforming components.
Yes it works well
Take your ohm meter out,go across each leg,power off, and measure line to load. You have dirty or bad contacts. Some relays sell rebuild kits as you know. I will trust the ohm reading, before injecting high voltage from megger. Because if its compressor, ohms will tell the tale. But your isolation method us logical. I am licensed electrician,with degree in electronics. 30 years in trades.
A meter didn't find this problem. Been using my megger successfully for years like this, but thank you for the input
Great video brother 💯💯💯💯💯
Thank you for the video. I am learning from you.
Glad I can help my man
great video as always.
Thank you!
Great explanation.
Thank you!
Great video .
Nice video very informative. I like your videos cause there not the usual Oo look at me change a thermostat videos like everything else lol there real problems.
Thank you!
I really appreciate you sharing knowledge but i also have a feeling you are advertising tools and it comes to that at the end. Do we need that or is it possible checking that issue with different tool? Think that giving examples would benefit us all since im seeing my friends are buying bunch of stuff they see on TH-cam and they dont even need that. Anyway not a hater just my opinion. Cheers
Thanks for the comment. I make vids with tools and products I have on the truck. The megger in this video has been in my truck for 10+ years. Do people send out review items, yes for sure. Do I experiment with them and show their use, sure do. HVAC Know It All is a digital business with a podcast, website, app, etc. Using sponsorship is also utilized to help with all this in some cases to pay the bills. Cheers!
Great video! A potential additional use for the mega. Have you ever used a mega on a new crankcase heater to see how it scores? I'll try it next time I change and let you know. Thanks again
Dust tracking for shorts ? I have seen that, I have seen short markings on the contractor!
Yep, see it all the time
Good post thanks. amps x volts=watts should be close to what manufacture specs is for heater.
Megaohmmeter, the great unknown 👍
It will definitely find the great unknown
Nice bud. Moister loves dust
Sure does lol
Nice video. How do you check a crankcase heater?
I would visual inspect wiring, check for continuity, check resistance value
Check resistance across and then to ground with a meter. But in this case, I'm basically checking the heaters with my megger.
Thanks guys. I've never had to check one.
@@ishalljr you're welcome
Add a fuse block for crankcase heaters?
I could yes, but I think they may not be replaced at this point. But that is a great idea for other applications
I hope you can keep that detector, but could you afford to buy it ?
I've had that Supco for years
Do touch ground
#GoodShitGary!
#ilikethathastag