Ductless Split AC System Not Blowing Cold Air
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- Опубликовано: 28 сен 2024
- I am on a no ac call where a ductless split system isn't blowing cold air. I test it and find the refrigerant pressures are low. I then lug refrigerant up to the roof and recharge 410a into the system.
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Great job in a terrible place to work. When I did a school in Mass I told the architect no more ladders like that. He agreed and had a change order for ships ladders. They worked great. Have a great 4th of July.
Have a happy 4th I’m in an attic right now fixing a water leak on a Mini-Splits pump
my sphincter was twithing watching u climb that #NotAFanOfHeights
Don't you just LOVE roofs on a hot day in the city.. I am in Louisiana and I have a couple radio system on roofs downtown (20 stories etc..) and it's a nightmare.. 97 deg F and 75% humidity making it feel well into the 100's.. Then having to gram hot ass steel and climb up a small tower up there all to change a marker beacon... Tons of fun...
Very helpful videos. Seems like a lot of similar issues with these units from just watching your videos. I do notice the suttle differences, but it seems similar. Good videos. Thank you.
I think your good at your job and probably enjoy the service world. I've been a tin knocker since 1988 and have always done my own fabrication, installation and service work but i do not put anything on u tube or social media. I like the outlook you have on the trade and your interests are only gonna get you ahead. Nice videos buddy. Keep it up.
Remember when data plates were actual plates with the information stamped into them so they didn't fade...
Oh but the unit is going fail just as the label fails might as well replace
I appreciate the videos man. Just a tip, if you are making these for educational purposes, this 45minute video could have been condensed into 45 seconds and show the main points
Dang kid, I was just around the corner from where you at. 4th and Jackson, doing a start up. I wish you did a a live stream!
I hope they pay you double overtime for having to work on the 4th of July. You're the best..... happy 4th to you
Yes I got paid double time and paid 8 hours for the holiday so 8 hours that day was triple time.
Happy 4th Hacker..... Take is easy buddy.
Old Sanyo . tough to find parts for them since Sanyo Factory got wiped out by tsunami while back.
At least they will be happy staying cooling for awhile.
Happy 4th JJ. Yea I bet it will get them into August if not the rest of the summer. Then replace once it cools off.
Is that area still a decent part of town or do you have to pay someone to watch your truck?
It’s not that bad yet the churches maintenance guy felt my truck was safer in his lot
You and all your stuff is overheated. It was 102 in florida yesterday. Have a great 4th hacker!
It was overheated yet I wonder if the batteries heated up more from when my bag fell
I was on a roof yesterday(the 5th) doing maintenance on a bunch of RTUs. Had to lug all the crap I needed about a mile where I could park(this was central philly). 102 degrees on that roof. I came up in florida too. Felt like home, except there was no breeze whatsoever.
Those refrigerant lines aren't the only things getting sweaty.
I was drenched. Not a easy place to work
lol
You are a Truly Professional 💪
I know what you are saying about the scooters. They are here on a trial basis until Oct they are saying they are going to not let them stay and outlaw them there have been numerous accident and 2 deaths with scooter riders riding out in front of cars. They are a serious traffic hazard here. I would not want to be you working on those roof tops i know its 30+ degrees hotter up there than the ambient temperature is. Glad the bag didn't fall several stories to the ground that would of been bad. Way to hang in there and get the job done.
Those scooter riders drive as if they are immortal. The bag would never go on the outer wall without a rope and me ready to lower. I think if it did go over I can say goodbye to all my meters, iPad, new digital probes. Most the hand tools I think would survive
never-ever trust those old clay tile caps and the cement holding them in place! well unless you want a quick flight to the bottom ;)
Hello, Gas is full filter is clean.but still ac cannot cool beyond 26°C even after setting in min16°.Mechanic has vaccum &refilled the gas twice in the last 30 days but still no cooling.What could be the problem?
Thanks for the video, you didn't forgot your rope, or it didn't make final cut
hello dear sir how came before you add refrigerant you don check for leaks in the condenser i tink this units came w capilar tube a clogged capilar the pressure will be low pressure ???
They already paid for a new system I’m just getting it running till we can get an install crew to replace this system. It’s a leaker and was gases a month in a half earlier
@@thehvachacker and destroying the planet at the same time . Rules or not is just shit lazy practice
@@muzza6047 i didn't break any rules. I'm allowed to recharge a system without repair under 50lbs of refrigerant, this system was just replaced
I feel your pain .I live in Las Vegas and the heat is definetly not fun .I had a few questions. I thought you weren't allowed to top off frigerate per EPA standards ? Also on the first mini split unit, you have to fill each dividual unit ?I see there muliple lines .Can you example more in detail ? thank you for making these videos .
you should find the leak, fix it and then recharge it.. on a system with zero refrigerant in it use nitrogen to find the leak... just topping off refrigerant is waste of money and not good for environment
The leak will be fixed when a new system gets installed. This job is just to get them by until the machine gets changed. You can top off refrigerant. Your not really suppose to with a Mini-Splits yet sometimes we just need to make something work
The HVAC Hacker . Real quick , I’m planning on taking an air conditioning course here soon .I see tons of videos on residential units but hardly any on mini splits .In your video you didn’t really get into great details about the mechanical working of the mini splits but I understand that being outside was not fun . You think you could make a video and breakdown how mini splits are maintain ? Thanx you sir
Hey Hackster , tell The Boss I said hey ... Lol ... Good vid ...
He might be having a beer somewhere close
With a white roof do you get the the glare or the washout like you would if you're looking at water with the sun hitting it and blinds the crap out of you
Glare does suck and then you have silver roofs, great for building efficiency yet horrible for techs working on those roofs
@@thehvachacker looks like it from the cam footage
F That! I'd be soldering in a service port at the evap!
isn´t Sanyo bought by Panasonic and discontinued?
Yup Sanyo is discontinued. Tough to find parts for them .
@@pineychristian indeed had a Sanyo air/water they had one temperatur sensor left in stock.
Thank God. Sanyos were the biggest pain in the ass. Stick with Mitsu.
Panasonic also got out of the ac business. I have a few Panasonic VRF's in Newark
Hey there, I have a mini ductless split unit, cooling works great, and blows fine. When I try to switch it over to the heating, heat pump, it does not do anything inside or outside. Would you be able to help me troubleshoot this?
It is fully charged and no leaks
like the foot wear what kind of boots are those?
they are Red Wings good boots
1:22 dont do it! dont do it!
So u can add charge without weighing in ??
Not really suppose to. Yet system was getting replaced this was to hold them over. It’s possible to charge without weighing in it in. Yet not easy and don’t recommend on a system not being replaced.
Nice job
Thanks Donnie
Spiderman? Did you get someone call 911? -:)
Just got a Joblink smart probe kit, but mine didn't show live on home screen, any ideas? For the kit, my high/liquid line probe is really hard to put on service port directly. I have to use a connector. Thanks
I would return them if the treads are no good. I struggled the first time using them. First Time Using New Fieldpiece Smart Probes ruclips.net/video/PSJtWrHDtSw/видео.html. In the job link app after clicking on measurements there is a wrench. Click on it and then click on the hearts next to the tools. Then the app connects to the tools. The video I struggled to get them to work at first. They are great probes I just ordered the air probes through Johnstone. Wish I bought the whole setup in the kit. Yet I am stubborn and just bough an amprobe digital psychrometer last summer. You need to buy the appion swivel t you see me using. This way you can test and charge with your probes
St. Francis?
Yes, you know the roof or you know hoboken?
@@thehvachacker Neither -- you dropped a couple clues regarding the area, and I could tell it was a church -- a little browsing on Google Maps and comparing the surrounding buildings is all it took. I know - I have too much time on my hands ;)
my hands are wet when I see this...
Hoboken ???!!!! Ooooooooooooo i'm dying again.......... people don't know heat until they've been up on a roof for an hour or two in 90+ weather........ I know your "pain" been there before...
Louisiana is the worst because of the humidity... I would rather work a roof in Vegas..
yes hoboken and this was a very hot busy week for me.
Why did you not check for coolant leak before adding?
It has a coolant leak why would I check for one? They already paid for a new system the install dept was 4 weeks out on this replacement. It’s why I repair everything unless it’s a major break down like a compressor
In the uk it's illegal to add refrigerant without pressure testing and repairing the leak first. Even if you are replacing the system in a few weeks. With 410 being a zeotropic blend you really should reclaim and add a fresh charge!.
@@setvencarter2752 In the UK it is illegal to take a dump without some special permit.
Why you don't use analog pressure gauges
I can never use a manifold again. I tried and don’t like how I have to leave panels slightly opened
Paterson NJ HVAC specialist
Those suction and liquid lines look like shit, no ,insulation, why Americans have to flip a,tank to get,liquid,, we don’t in Canada, 2 ports on each jug
Rappelling 101 for HVAC
Beings you drop your bag could of changed settings on temp reader
55 °C = 131 °F
Next time you get called for that unit, ask for ABSURD LOCATION EXTRA CHARGE FEE.
We are here all the time. Except another coworker usually takes care of this site
wear gloves!!! All that exposed lines, from the crappy black insulation, falling apart, the white stuff is much better long lasting
does amazon sells the "white stuff"?
Is the white stuff? I see the white stuff melted away on many units. The white stuff doesn’t take heat too good on top of buildings
@@monokendo yes
Gotta have a access climbing surcharge..just to get to the stuff is more effort than the repair
Where's the Leak Dude
Who cares when you can't gets parts and Sanyo is discontinued products
@@pineychristian the environment?
@@netpok customer needs cooling and I'm sure he needs to quote all that work out. Being that it's on the roof who knows how long lineset is leak search could be costly. You give customer quote to find leak and on that Sanyo ( discontinued ) i guarantee you they would decline it then say top it off to get me cooling......
between your ears ;)
Your practices are literally a “HACK”
mabey at times yet everything I work on, works.
You’re a cut above the rest .... I’m glad you pace yourself when working ! I have another 12 to 15 years to go so my attitude is nice and slow is the way to go :)
A lot of these HVAC companies want fast service techs that can sell new equipment regardless of the year of the unit , so watch out when Horizon comes to your area as they are not service guy they are sales guys !! Never trust a service tech that wears a white shirt !
Those sales techs are in my area already. I have a coworker whose previous employer wanted any unit 10 years or older replaced and customers would have to sign off some waiver if they didn’t replace
It's one refrigerant circuit. No need to fill on the different heads of the multiplit.
Hacker you're getting Delirious up on that hot roof. I know the feeling peace brother
I had the problem that there was no cold air being blowed but I found out that the compressor did not have enough power to start ( that day the power was having severe issues), thankfully, now, the compressor starts.
Yeah i heard you have that heat wave a bad 91F WOW... try 98F and 89% Humidity down south fells like 110F.. 91 Thats cool weather love it when it turns that temp...
Happy 4th man. Why don't you get an umbrella like the hackfreehvac guy has look like it helps him he's in the desert
So nice to see the real world problems with the fixes too. Keep on the cool side.
Yep, the ladder of death and burning hot roof. Like the first job I had, when in high school. Installing TV antennas. Roofs so hot would burn my feet. One day a loose cap tile about did me in. Glad I don't do that anymore. But back then I would climb anything, including water towers in the middle the night, haha.
Not sure why churches never have money
hurry up slowpoke, work faster :))
I'm trying yet lack of sleep, plus the warm sun has me moving in slow mo
haha, giving you a hard time old fart =p
early 40's myself lol
I have a question. As a Technician ho do you fell about ductless split systems. I live in Iowa. I could buy a ductless split system for about the same money as a conventional heat pump ( minus ducting). It going to be installed in a garage. I used to work in the industry 25 years ago. Things have really changed.
They are ok. I like the Mitsubishi or fijitsu ductless systems. They are good for a garage or room that's hard to get ducting to
@@billstools5244
Well how big of a split air system would it take to heat and cool a 45' X 50' garage.
@@terry42481 how many cars in that garage? A ductless is good for a single or a double, but due to the airflow limitations on ductless they're not great in big spaces. Not enough of the air is making its way back to the evaporator coil. If you want to condition a big space, you're better off running duct for both the supply and return on a traditional split so that its cooling the whole space, rather than just the small area around the ductless unit.
@@smartpig129 Usually not many cars stored in the garage. It is pretty much open. How big should the furnace and AC be sized to? I kinda want to go with a heat pump with LP back up heat. (Or maybe electric back up heat)
I installed a Pioneer Mini split 12,000 unit for my bedroom in Las Vegas .worth every penny .The unit runs off less need 3 amps so it very energy efficient and quiet . Also all mini splits units are heat pumps .You'll need to install a stand alone disconnect box 20 amp or less next to the unit .
I’ve got the JL3 job links and that adapter you used to read pressure and charge at the same time just blew my mind. I want! Recommendation on where to get that? Thanks in advance. Great video btw
It’s the appion charging t. I bought at johnstone yet sure it can be found online.
Why are you working on 4tg of July?? Crap, now I'm going to get a call to come in too
It’s my time on call. Does your air probes test above 140f?
Would the damper for winter summer to the dehumidifier make it frost up or dose that mean it’s low on Freon when u try to run the ac
blowing ice cold air in circle sure wont help it any, nor having the humidifier running trying to humidify :))
yeah, seen that before! and had people asking "why isn't the system working"
@@throttlebottle5906 You need to keep the return air above 68 degrees or the evap coil temps will drop below freezing. So yes it could ice from the damper being open depending on how cold the inside temps are. Don't see it happen often though
Where do u work NJ ?? The u shaped ladder is called a gooseneck fyi
I am from Bergen county, therefore most my work is bergen, passaic, Hudson, Essex. Last week I was out in Sussex county
Delete the Fieldpiece probe app and get MeasureQuick!
I like the fieldpiece app better. For many applications. Measure quick is ok . I think I will just build one for my needs
OMG I hate heights.
I did also 20 plus years ago before I started HVAC work
Heights I have no problems with but that was bloody ridiculous, so much for employee safety.
First time climbing a u shaped ladder only fastened at the feet. Swaying as I go up and over
@@thehvachacker : Yeah, I noticed how well secured it was. When I was a lot younger I trained as a Steeplejack, working on power station chimneys & cooling towers etc. I don't mind walking along parapets a 100' up or walking the ridge line of roofs. But for some reason, seeing you going over the end of that wall made me feel pretty uncomfortable, take care out there.
Great Job! Happy 4th! Get some rest.
Thanks happy 4th I hope I get some rest been running calls all day
It's Mississippi ....not Missippi.....you sound like your from Paterson
Its a jersey thing
@@thehvachacker You're definitely not from Clifton
Nope yet do live close to it.
Then you're from Passaic
@@zeke112964 I'm in bergen county.
Adding R410A without finding / repairing the leak first?? In Europe, that is illegal. Is there no legislation in the US that covers this too?
So you never recharge an ac system for a customer without repairing the leak first. Here in the USA it’s the wild west. If my company doesn’t charge it up someone else comes by charges it up and steals my customer. They already made a down payment on a new system. This is just to keep them going since the install dept is a month behind
Yeah, for cars now to. Its a shame for older cars, in the past you could just fill them up so you could use your AC for a season or two again. Now you have to be leak-free before you can add new refrigerant. Pain in the ass especiallyfor older cars, and the repairs are getting more expensive. Ofcourse for environmental reaons. Really hard to find any AC authorized shops who still fill them up withouth leaksearch/repairs, because of the strict random checks.
R22 is phased out for environmental reasons ass well. Reparis on R22 systems can be done, only when not touching the gass itself. R22 is only on some shels in some barns maybe... but it's now also illegal to use this existing R22
It’s been a while since I’ve read the EPA regulations but if I remember correctly, it is not a requirement to find/repair a leak on any system that holds less than 50 lbs. of refrigerant.
@@thehvachacker nope, we never just "top up" a system. The laws here state that we cannot knowingly charge a system that has a leak. Penalty is up to 5 years in jail and/or £20,000-00 fine!
@@bastiaanvandeven9230 I look after a few R22 systems that are still going strong. But as you say, the moment there is a leak, or the compressor fails, it's scrap.
So, you want to be an AC tech huh?
How about commercial HVAC is easy. I like doing residential work I walk right up to the machine. No climbing and being a slip away from game over with a 80lb Tool bag on my shoulder and ladders that sway
@@thehvachacker Residential in Center Philly is the exact same as Commercial. Almost always a ladder involved.
Happy Fourth !
What is pressure in forced cooling ????
Do you by chance have a facebook page? I would love to chat with you some more, I thin you are great at your job and I enjoy these videos.
I do have a Facebook page the hvac hacker
You should stop smoking.
You adding liquid refrigerant trough vapor line way too fast - You must use the liquid to vapor converter to prevent compressor damage - You must always make sure all your elements are clean before adding Freon or getting proper reading- Superheat or sub cooling must be always be performed
Superheat and subcool don’t tell you much on a Mini-Splits. There constantly modulating and I know of no data provided by any of the manufacturers telling what measurements to look for. This usually have an accumulator also
Superheat and subcoolare useless with Mini-Splits. I even say in the video I’m not doing it how the manufacturers want these systems charged. They want recover and weigh the charge in. Yet not always practice. That’s added equipment I’m lugging up onto the roof. Here we know there is a leak and this system will get replaced but need to make it operate until it’s not needed then replacement
May I ask what are elements? Been doing this work 20 years never heard that term
It is not possible to check subcooling on a mini split unit.
I never understood why charge a leaking unit, I'm pretty sure here in Europe it's illegal to charge a unit with a known leak. That's said R22 is illegal here too, you can use your equipment till it needs a charge but if you are low or need to modify the system then you have to use a replacement.
Way to show safe practice. Stepping on clay shingles.
How am i suppose to get to the system to work. HVAC is one of the most dangerous professions. Forget the clay shingles That U shaped ladder was interesting adventure. Years go I use to jump the ledges. Not no more
There’s a difference between dangerous and laziness. You could bring a smaller lightweight ladder to get up to that unit. I’ve been in the field for 21 years never had one work injury. Work smart not hard. You have violated many OSHA safety procedures. In the end it’s your life.
What does osha think of that u ladder? I shouldn’t really be climbing onto roofs with a damaged elbow yet can’t afford not to work. Which will cause me not to lug everything up that usually I would. Oo
It’s your life...what’s an elbow pain if you’re dead anyway.
I used to build and service TV, and radio / cell phone towers and I never followed the government red tape rules to the letter because I am there to get a job done not dick about with PPG and safety harness hook ins every 5 feet.. Try that on a 500 foot tower, you will be climbing all day and be worn out tired by the 250 foot mark... I would free climb that shit because if I fucked up it would not matter anyways once you are over 60 feet. So the rule #1 was DO NOT FUCK UP.. with that in mind you pay attention to what you grab and your footing.. It's literally that simple.. The people who wrote OSHA rules are desk jockeys, never worked a real field job ever and they think they know whats best for business. Those rules exist for those people that have zero common sense and by all rights should NOT be working field jobs...
At least you admit you know you were supposed to recover all the refrigerant and fill it up the fact respect is the only correct way to do the minisplits. The only correct way to guess use the factory software laptop interface connects into the circuitboard set the system into test mode it will spin up the fans to the correct airflow for testing you can read all the temperature sensors in the system to set your superheat at each air handler well in test mode. For every hundred technicians who feel and minis split by guessing I’m going by beer can cold I see 100 systems that are improperly re-charged either overfilled or under filled .
Totally agree but it's POS Sanyo and you know you have a leak. Doing a leak search under a pressure test or isolation pressure test would be the ideal time to recover, find leak , repair and recharge properly. Recovering refrigerant will inconvenience the customer with no cooling for even longer.
Plus I'm sure he must quote all that work out before it can be done on a old POS. Day before 4th of July gas and go till you know customer wants to pay a lot for a unit you struggle to get parts for. ........
The correct way is to recover and charge to factory specs but look at that system. Get them cooling and move on. Gotta do what you gotta do. Be safe on those roofs. My knees were getting wobbly wachting you climb over that wall. Nice job Bill
It’s real world HVAC and we all recharge these systems wrong yet they seem to work afterwards. Yet like I said in this video no way I’m lugging all that equipment up to this unit. This system is getting replaced. Just trying to get them through this heat wave
The HVAC Hacker yes true. But I have all the software and hardware interface from the manufacturer that was the way I was trained when I was young from my father. I never know short cuts or the hack way to do things. I taught my son the same way we fly out to the different VRF large commercial and heat recovery system and small mini split training. The first thing I buy is the factory software. When we go out to a job site hookup to the system print out of email to the building owner, property management or customer how their system was improperly recharged explained how they have a higher power bill and shorten the life of their compressor. After I recharge I print out the factory data showing the lower compressor temp and lower power consumption. After that I got all the calls and I ask and get more money and pick and choose best gravy jobs. Explain to your customer if a Tech comes to service his units that Tech should give you a before and after print out proving the work you did. Also use MeasureQuick app by Jim Burgman, show your customer how are you Geo tag using Google maps the exact location of the unit on the roof through Google earth with the invoice number documenting the work on each one of their units. How are you track each piece of their equipment and if the customer owns multiple buildings they can have access to their invoices with each technicians notes so every person who comes after the next person who just prior worked on the unit will know the past history of each unit by using the Google Maps with the Measure Quick app. Explain if a technician goes up to a VFR unit or mini split in the first thing he does is hook up a set of gauges and start pumping in refrigerant to fire him immediately delete his phone number out of your cell phone and find somebody else. With education good tools good knowledge you were start selecting the cream of the crop customers who are willing to pay you well so you can make three times more money and only do 1/3 the amount of work. And the customers who do not see this as a value you don’t want those customers in the first place and you would not even want recommendations from them to somebody they know because they’ll be the same kind a customer could think of you as dirt cheap labor off the street. Good luck pick up your game I wish you the best of luck study and practice and become better.
t lech t lech I don't trust using measure quick with my customers info. We have a software program we made that all our customers notes goes into for any of our techs who work on this system. There is 30 commercial techs who could end up here. All equipment gets a work order. We can see everything we ever done to the machine and all tech notes. We don't trust giving customer data to a public app so if using measure quick we don't put any system info in. Besides measure quick will tell you a filter drier is plugged when you have a bad txv. I tested drier for shits and giggles yet same temp in and out. Can't troubleshoot off info an app is giving you, have to be a free thinker. This system is getting replaced at the end of the season so I just need to get it to operate for now. Only time we connect to the systems is if it's a VRF. Otherwise I can troubleshoot all problems with service manuals if needed. I already have the cream of the crop customers and am known as being very expensive. You must not watch my videos I can tell from the comment. This is a make it work service call. We have all the equipment at this site and thousands of other sites documented. Now you do know this system your metering device is in condenser so subcooling is useless. You can fire me, I get fired by idiots who are close minded in every video.