HVAC TROUBLESHOOTING
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- เผยแพร่เมื่อ 6 ก.ย. 2024
- No cooling service call troubleshooting , compressor not coming on so temperatures was high , I will show how to troubleshoot a commercial hvac unit , Liebert / vertiv air conditioning compressor 2 not running .
CRAC.
#d2dnyac
#hvacservice
Why can’t the Liebert factory explain it this effectively? These schematics are the worse. Good job, bro.
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As usual my man goes over the wiring and schematic and shows you where and how to trouble shoot.
Thanks for watching friend
Had a similar issue, Traced it back to terminal 70 and 71 in the j box at the top of the unit. This is a dry contact for the heat rejection unit. The condenser unit on the roof, was not coming on. The wire that was connected to terminal 70 and 71 was damaged. replaced the cable and code 4
Love how u show reading the schematic. Great content
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Those are real good, units. One main thing to remember is the internal condensate pump is live from the main unit breaker. Protect yourself by lock/tag power off completely.
Thanks for posting video,Sir
Thanks for watching my friend
Electrically insulated tools is a must !!!
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You need some crocodile clips mate,then you can atleast clip the black to the case of the unit & free up one hand & you don't have to worry about probes slipping off.Stay safe man, greetings from South Australia.⚡⚡❄️🔥
Shoot to Australia
Love your explanation in detail maybe get a head cam so you could work with two hands. Please keep them coming thanks you
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The company that i work for send me to work with this units kowing that i dont have experience in this kind of systems but this videos are really helpfull thank you
Thank you for watching my friend
Thank u my brother very nice video. I worked on one of this units and it nearly sucked me in, snagged my visitors neck strap and luckily water safety on pan held it. Yet the safety fell, hit fan and safety shot like a bullet straight in to my eye safety glasses. Luckily I didn’t die
Wow 😮 that's rather shocking,,,, you can never be too careful while working on these things
Nice!! Thanks i pm these lieberts but never get down to trouble shooting them so this was cool thanks.
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Awesome video!
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You are excellent bro, keep the video coming, I just fixed the compressor overload issue and changed the fuse on the motherboard, god bless you
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great work..you are actually
teaching me about Lieberts units.. bless up
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Good
Very well Thanks for sharing all your hard work. Be we’ll be safe out there 😊
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Appreciate The Time & Effort It’s Always A Pleasure to Attend Your Classroom Manners & Respect KingMan 🆙🆙
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I watch these videos to see the deep dive into the mechanical side of things. I work in BAS and slap controls/integrate to stuff all the time. These kinds of videos are great 🤙
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Great video keep up the good content
Appreciate it
Thank You
Thanks for watching
Hola Roberto Ceballo gracias por compartir este video con nosotros
No habla espanol
Great job.
Working on the same unit right now with EVAP coil replacement .
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*Rated Load Amps. Way to follow the diagram. Good job.
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Really good video. 👍 you make schematics fun again. I'm glad it was relatively easy to troubleshoot for you. Plot twist: somebody disabled the overload alarm just to make your job more challenging and see how fast you can do it 😉.
😂
Nice 👍🏽
Thank you very much for this information i appreciate that
Thank for watching friend
Awesome
Like and share
Nice trouble shooting!! Nyc 638?
Yes
@@D2DNYAC this video is very good and you make fun and interesting to watch! Good Job!!!
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Thank you for the titulo in español
Now where do you start troubleshooting? Find fault code. Hop scotch multi-meter to all safety components. Find open: fuse, pressure switchs .etc way to go D2D🤯
Dude you aren't making any sense 🤣.. anyway thanks for stopping by
Great video sir keep them coming 👍🏻
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Would you like to make a video troubleshooting the Daikin inverter ac unit? We would be grateful to you.
Okay
Love these videos
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bro you're the best man
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My Liebert DS unit like yours has the same alarm “compressor overload 2”. The fuse #2 keeps blowing out. Avery time I start the unit and compressor #2 contactor closes the fuse blows out. If I manually push the compressor contactor the compressor runs and works fine. What do you think makes the fuse blow out all the time. Your help is really appreciated
Check contactor coils and liquid line solenoids coils
Wow. You’re the best! I don’t have words to thank you. It was the solenoid valve coil that was causing the short. I really appreciate your help.
Please give me schematic download link for study..? Thanks..
Okay
Those hands touching the compressor wiring next to the overloads made me feel nauseous not verifying if power was present.
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14:06 Where'd u get those leads?. I keep losing my attachments for converting my leads. I just be extra careful without them or when really necessary I have long needle point insulated leads. But i think yours is pretty cool. Did it come with your meter? Mines a field piece.
No I bought them separate from Abco refrigeration supply any hvac supply house should have them
Pro 🔥
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Curious if you think maybe she was low on refrigerant given that the amp draw of the compressor was so low? Or am I missing something there?
good point my friend very much possible, with that said perhaps i should have gauged up, thank you have just thought me something
I need some troubleshoot guide
Just keep on watching
What is the solution ?
ALARM
VSD Circuit 1 StartUp
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CRAC attack
I need in spanish....please