HVAC: Domestic Water Pump Not Working (Domestic Water Booster Pump Troubleshooting VFD/Controls)
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- Опубліковано 8 лют 2025
- HVAC: Domestic Water Pump Not Working (Domestic Water Pump Troubleshooting VFD/Control Panel) VFD Repair / VFD Troubleshooting / What Is A VFD / How Does A VFD Work / VFD Explained / HVAC Emergency: Commercial Hydronic Circulating Pump NIGHTMARE (Pump Leak Water) HVAC (Heating, Ventilation, Air Conditioning) Emergency Service Call: Centrifugal Water Pump Leaking Water (Water Pump Leak Repair) Water Pump Not Working / Water Pump Leaking Water / Circulator Pump Leaking Water / Circulator Pump Not Working / Circulator Pump Wiring / Circulator Pump Troubleshooting / Pump Water Leakage / Water Pump Troubleshooting / Water Pump Mechanical Seal Repair / Pump Seal Installation / Pump Seal Leaking Water / Pump Seal Replacement / Centrifugal Booster Pump
From the end user’s standpoint, a water booster system basically adjusts the flow rate in water fixtures, when street pressure is inadequate. A domestic water pressure booster system has a two-part construction; an expansion tank and a pump. The tank is lined with a bladder. As water is pulled into the expansion tank with the help of the pump, it compresses the air inside the bladder, thereby, becoming highly pressurized. This allows the water to be at the required pressure level once it leaves the tank.
Domestic water booster systems usually come in two broad categories:
1. Manual (Manually operated boosters are usually activated by manually flipping a switch)
2. Automatic (on-demand boosters self-activate whenever water pressure falls below a certain limit)
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Thanks for watching everyone! This video is a behind the scenes video of me learning as I go along. What happened here was that they lost the touch display because they lost the 24VDC power supply to it. The breaker tripped so the rectifier couldn't transform the 208VAC to 24VDC to send to the touch display controller made by unitronics. There was an intermittent short so it didn't shut down until the following day. Once reset, everything worked. Intermittent probems are very difficult to trace. It shouldnt reset if there was an issue present. The touch display was taken out of the circuit so it only works off the VFD itself and has been working for a few weeks now. The unitronics controller was the culprit here. It's hard to catch an intermittent problem and it becomes more of a process of elimination type of deal to figure out the issue. The pumps are fine but there was a control issue. I'd recommend that they have a seperate VFD for each unit and let it run off that as it's capable of doing everything. No need for the extras. Thanks for watching!
You are a very patient and calm man under pressure to get the job fixed RIGHT! That’s what’s needed all the time 😊😊😊
A lot of people don't realize that it's easier said than done. For him to control himself and not get stressed out is a super power.
Thanks! you’re good troubleshooter.👍🏻
@@kimware4381 Thank you so much! I really appreciate that 🙏 I'm trying and learning as I go along with some things. I found that's the best and only way to get better. Get in there, try & learn. Thanks for watching 🙏🔧⚡️🤙
@kimware4381 I'm there fixing a bunch of other equipment but they ask if I can help out with some things I don't usually deal with and I don't deny the work since it's a good customer. I always end up getting it done in the end. Be safe out there 🔧⚡️
Great job Jumper Man. Those bearings were sounding rough.
Nice job JMT! I have similar ones at my job... thanks for sharing 👍
Great video. Good job and nice work. Thank you for sharing. Have a nice week
Who’s mans is this 😂
Well done JMT 🙏🏽
That's not a contactor, it's a circuit breaker, turn it on.
Yup. This MeanWell is simply 24vDC power supply
@@TylerDurden0331 That is correct. I realized things as I went along. Thanks for the info & thanks for watching! 🔧⚡️
unbelievable how bad connections can make your head spin when diagnosing. great vid!
@@HVACKR Seriously! This one definitely had my head spinning. Thanks for watching 🔧⚡️
The feeling when finding the issue 😌👍🏼
an classic one. but please close the vfd when powering up. They can make nice fireworks when malfunctioning.
The red light is normaly the DC bus of the vfd inside. wait till off/ 5 minutes
Great work broski👍🏿
You can clearly see which connections and wires were made in the factory for this cabinet and which were made at that place. The factory ones are nice and labeled, inserted into these finger channels, and the only thing that had to be done in this area is just garbage... and by the way, Eaton breakers are the standard format for Europe/Asia, and MeanWell power supplies are some of the best in the world.
Yaskawa has the best tech support hands down. They’re local to me (Chicagoland). They’ve showed up to job sites if they were in the area. Drives will stay on and have power after you power off. You have to wait 5-10 minutes for the capacitors to discharge out
JMT. Next time call Yaskawa tech support. They are great
Nice Video Brother
Maybe DC Breaker Off/Tripped
Because of Loose Connections
Take Care!
good video thanks
Well done
@scottmaz4063 Thank you Scott! Much appreciated 🙏🔧⚡️🤙
Great job as usuall.!!!!!
That booster pump set up pressure seems really high, 110psi?
I see some bitching that you should have just done the obvious and switch on the (trip) off breakers just because they think themselves to be that brilliant. Most likely such "brilliant" persons would probably NOT have notice the lose wire as they would have "fixed the problem" and left the room.
I watch and enjoy you work ethics and willingness to learn even when you encounter the unknown, so don't pay much attention from the comments of such "brilliant intellectuals".
Do you hold your phone or use a go-pro to film your videos?
Would have been helpful for them to leave an electrical drawing or the manual for that panel, but job security I guess?
As a German, I wonder why you don't use End Sleeves
As a Belgiam, where are the schamtics. But your 100% right about the sleeves though.
Can you deal with booster pumps and chiller pumps in the US and Canada as a hvacr tech?
Does it require a specific licence?
In Australia mechanical services license with restricted electrical license allows us to work on pumps/motors
Doesnt answer your question i know
@JesseDoesHVAC thank you.
Watching video. There is a breaker that's tripped,why not turn on and that will give you a idea of what is happening
😻💚💜💚
@@ILoveKittys78 💜🔧⚡️
Lose wires cause fires
Very sketchy, lucky it didn’t go up in flames. Well fixed!
What I understand so far evaluating the video, you have little knowledge about it components why because these type o troubleshooting should take a minute or less because the issue was obviously in front of you 🤦
That just shows how good his troubleshooting skills. You shit on him for not knowing the system but no praise for figuring it out and fixing it. He actually made it better than it was before he got there.
I know nothing about VFD's but immediately saw the breaker was tripped. Not sure how long it would have took me if ever to unwrap the tape and find those bad connections. He taught me something.
He went by the book to my knowledge. Always verify your power coming in. Then verify your low side. If the problem isn’t low, then check the high side. This way you cover all your bases. Job well done.