It’s leaking… leak should have been addressed first.

@Practicing_HVACR

Жыл бұрын

Maybe he found the leak and it was small and he’s just charging it up until he can get a new part? Minisplits are notorious for many small leak on the evaporator. No point in repairing it, time for a new one. The copper is super thin too so if you needed to repair it’s quite difficult and you could just render the unit inoperable.

@austrianpainterhidingfromt5920

Жыл бұрын

Could have just been a loose flair.

@972958

Жыл бұрын

@@Practicing_HVACR replacement is basically addressing it. So it’s fine

@andrewgilbreath1331

Жыл бұрын

The customer doesn't always want to pay for a leak search, plus you can tell the customer is a cheapskate because they put in a junky diy mini split.

@972958

Жыл бұрын

@@andrewgilbreath1331 yea true some people just don’t give a damn and waste money you got a point there

I like this guy he speaks on education helping people out on air conditioning refrigeration a lot of technician need training and help which most companies don't do .👀🤔💯👍

@TaddyDigest

Жыл бұрын

thank you

Correct way is to recover the charge and weight in the correct amount after the leak has been found and repaired

Video & clips like yours makes me wanna learn on KZread instead of going to school for it😂

@TaddyDigest

6 ай бұрын

do it bro

Anytime I’m responding to a mini-split no cool or no heat call the first thing I do is rub my fingers around the outside unit flare nuts looking for compressor oil. You would be surprised at how many techs install a mini split and don’t set the flare nuts to torque specs. Leaks at the flare nuts in my experience are about 75% of mini split calls

@TaddyDigest

8 ай бұрын

yes sir I agree

I thought you weren't supposed to top off minisplits, recover and charge by weight from scratch is how I've always been taught. Even by Mitsubishi

@TaddyDigest

Жыл бұрын

always factory charge yes

@edwardgarza5104

Жыл бұрын

Mini splits run at a very low superheat 0-5 can do it that way 2

@Bottomshelf988

Жыл бұрын

Seasoned techs can guesstimate but only proper way is by weigh in. Too many variable speed components to dial a charge in by sub cool, super heat or pressures

@Practicing_HVACR

Жыл бұрын

True but I’ve charged them by looking at superheat, subcooling, and temperature split with the fan on full speed many times without problem. No need to dump more money into a dying unit.

@noneofyourbusiness3343

Жыл бұрын

Once u have enough time in u can feel systems out via pressures and temperature splits. Guesstimating and getting a customer cooling for a reasonable price is quite possibly what the customer prefers rather than charging for hours of labor to pull a system down just to weigh it back in

Hey man I love your videos been allot of help, honestly. Been doing installs for three years and now working my journey to tech. Thanks for the help brother

@TaddyDigest

Жыл бұрын

You're welcome, my friend. I'm glad you're here, and i'm glad you're watching my videos

Now the million dollar question, why is it low on refrigerant and how was it addressed?

Cool bro thanks. I hate minis and heat pumps tho. I'll learn them soon

I miss the old R22 days where you could just bump up the charge until the suction line gets "beer can cold". As long as the evaps clean, it's pretty much a done deal. Plus the 22 ran at half the pressures of the 410A. R12 was another winner. All that stuff still sells in Mexico for pennies. We, in the US, have been bamboozled!

Also good idea to put the indoor fan in hi or turbo, also put the mode in cool only with lowest setpoint to drive the compressor valve to high percentage as your charge to get what your looking for on performance.

@TaddyDigest

Жыл бұрын

Thanks for the tips!

Topped off a blended refrigerant in a mini split great idea bud. 😮

After seeing the pressures are low you should find and fix the leak. And when putting refrigerant back in you should weigh the amount on the label because just a few ounces too much will make it run poorly

Bom trabalho, vejo seus vídeos de Maceió-AL Brasil.

It's the dreaded mr cool!

Both lines are the low side and just an extension of the evaporator. Since your expansion device is buried inside the indoor unit, that smaller line is a liquid line, but cold low pressure liquid, not the usual condenser out subcooled warm liquid.

Enjoy your vids Bro

@TaddyDigest

10 ай бұрын

Thank you my friend

Good job thanks for the advise and the teaching

The proper way would be to remove all refrigerant fix the leak and put only the proper amount of refrigerant back in with some UV dye to confirm the leak fix then check function for a job well done 👏

I love learning

On a modern mini split the expansion value is in the outside unit. Ie both refrigerant lines that you see are on the low pressure side. When charged correctly you have low pressure going to inside evaporator coil and the heat adsorbing phase change is just in that coil and not the lines. When undercharged the gas is flashing into vapor before the inside coil. If overcharged the phase change is well into the inside coil and some on the return line too. The capacity of unit peaks when the charge is correct. In ancient mini splits from 2 decades ago and more they were often R22 units and the expansion valve was in the inside at the evaporator coil. This made a noiser unit. But was easier to service since one had high and low pressure taps on the outside unit.

Correct me if i am wrong, but isn't the meetering device in the condenser before the line come out of the unit? So that line is not a liquid line? Correct?

@murkyturkey5238

11 ай бұрын

It’s still liquid going to the head unit

Had one the guy filled it him self, spilt was off only about 12⁰ said he couldn't find the leak. Found leak within seconds but had 30⁰ split at condenser he got air in the system and overcharged it by 1lbs 9oz.

To all those who are saying that the leak must be fixed and the refrigerant charge weighed are correct but it is also still correct to top a system off especially one that doesn't leak much refrigerant. Some of us work towards giving our customers options, especially if they don't have a lot of money to spend. This doesn't violate EPA regs, either.

@TaddyDigest

10 ай бұрын

Thank you thank you thank you I'm glad there are people like you out here Really appreciate you

I don’t think that line it’s called the liquid line. It’s low pressure starting from the outlet of the condensing unit. Metering device is in the condensing unit.

I see Mr Cool, I either walk away or say they need a Mitsubishi

Check your flare fittings and flares for the leak. If it is leaking try to tighten it down more with a back up wrench. Make sure your flare isnt too big or small and make sure the flare is seated properly before u screw down the flare nut

How to improperly add freon to a mini split. It has to be completely recovered and evacuated to add freon....

@TaddyDigest

Жыл бұрын

I can do a video on that too That's a good title thanks

They should build in a “Maintenance Mode” to allow troubleshooting at full operation like working on package units. Many of these things leak from bad flared tubing made at the factory. No way to know if charge is correct since fans, compressors, and even valves are all variable speed.

As long as Temps are good it's all good the compressor ain't starving from freon

No scale is wild

Your the man, very interesting

@TaddyDigest

Жыл бұрын

I appreciate that!

Awesome job thank you so much

@TaddyDigest

Жыл бұрын

You are very welcome

After you know there's a leak... Step 1: find/fix leak. Step 2: recover/vac system. Step 3: WEIGH IN THE CHARGE (even more important on mini splits)

@GoatzombieBubba

9 ай бұрын

Not everyone wants to wait 8 hours for a vac down and weigh in when it is 100 degrees out.

@me7841

9 ай бұрын

@@GoatzombieBubba 8 hours?! i get below 300 microns in less than 5 minutes on a mini split… you have leaks in your system or you’re using bad equipment/ tools.

How about fixing the leak

Changed a evaporator coil in a head today really tight and it definitely sucked lol

Very good I work on those split in my country

you did the equivalent of disconnecting check engine light on your car. now it looks fine, but the problem was never addressed. on the mini-splt being low on refrigerant you added refrigerant, but did it fix the problem? why was it low on refrigerant? leak? unless, you already addressed that issue off camera and I'm just making an ass outta myself for no good reason? ;)

How about check the filter or the evaporator coil 🤔 what does a plugging or restricted evaporator do to your pressure? And if you do have a leak what about looking and fixing it before you add refrigerant 🤔 just saying.

Must be a single speed compressor ? We always fill mini splits by weight. Where was the leak? charging with no scale? In Canada we have to keep stock of the refrigerant we use. So you are not charging by weight , subcooling or superheat ? So you use a temperature split as your charging benchmark?

Charge it and run.. I'll be back next week to charge it, and you, again!

I was always told on a mini split get the pressure to 140 and leave it alone😂😂

Are you suppose to check for leak first Recover pressure test vacuum refill

Where's the scale at? Don't you gotta document how much refrigerant you add?

both lines are vapor lines as the metering device is in the condenser

Bad info. Freon went somewhere. Now you have mix charge if R410a. No worries hopefully the next guy will fix it right

Fix the leak first smart guy!

Compressor discharge line. If you can't hold it for more than a few seconds without getting burned then it doesn't have enough gas

@TaddyDigest

11 ай бұрын

absolutely

Question is why is it low of refrigerant on a closed system?

Should both lines be cold on a mini split or just the suction?

They are both vapor lines controlled by EXV.

@TaddyDigest

11 ай бұрын

eev

@Bbernhardsr

11 ай бұрын

@@TaddyDigest then why is a TXV abbreviated in that fashion? Similar to the TXV, the electronic expansion valve (EXV) controls the flow of liquid refrigerant entering a DX evaporator. An EXV's operation is more advanced than a standard TXV. The EXV uses a step motor to open and close the valve port in response to signal sent from an electronic controller.

@Bbernhardsr

11 ай бұрын

@@TaddyDigest the only proper way to charge a mini split is to recover the charge and weigh it and compared it to the label on the unit. I have service Mini Splits before that depending on the load the exv will run the vapor lines at or below 100 PSI which will make you think the system is low on charge when in fact it is not.

People always got something to say on a short video. He didn’t do a whole 10-15 minute video from each step. Good lawd some of y’all need a chill pill.

@TaddyDigest

11 ай бұрын

I agree bro

Why do a lot of mini splits not have low pressure cut offs? I replaced one that was running with zero refrigerant? And an AirTemp compressor seized up from running for weeks with nearly no refrigerant.

Ok. But you filled with top-up in mini splits R410....is that safe....i generally remove half of refrigerant into air then I fill with liquid gas in it....

Not a liquid line, but point made.

@Practicing_HVACR

Жыл бұрын

Mitsubishi calls it a liquid line. I like calling it an expansion line.

@austrianpainterhidingfromt5920

Жыл бұрын

It's usually low pressure liquid.

I am pretty sure in a mini split you’re not supposed to add refrigerant you were supposed to recover the charge, Repair the leak, re-leak search it, vacuum the system down, and then weigh the refrigerant back in to manufacture specifications

@TaddyDigest

11 ай бұрын

Thanks for advice I did this just to show what it looks like when one is low

@JBra1382

11 ай бұрын

@@TaddyDigest yeah. All good. Keep doing your vids. I’ll keep watching.

@TaddyDigest

11 ай бұрын

Thanks bro

I always top off mini split. Nothing wrong with that. Own two and one I top off once in a while with a few ounces. If it has a leak, I am not going to worry about it because it uses very little freon. If it comes to having a big leak, then I will replace the unit.

@TaddyDigest

11 ай бұрын

Very cool bro

@user-zc2hk3cs6v

11 ай бұрын

Because a leak of any size will introduce contamination and moisture, Ventruri effect and whatnot. And this contamination is bad for every part of your system in various ways and causes lost capacity and decreased efficiency.. also refrigerants are expensive and in general bad in every way to treat like a consumable. It also sounds like your guessing on charge and if you overcharge enough that compressor is in trouble.

Not the liquid line pal. Metering device is in the condenser, they’re both vapor lines.

Vapor line looks like an ice cube and my liquid line is not barely cooler than ambient. Vary little cooling inside and no heat rejection outside. Any ideas?

Looked like on camera the liquid line was flattened about 6" from valve

If your watching a KZread video to work on your ac, save yourself some headache and call someone. Probably save you money in the long run. Just my opinion

Since there’s only one service port on the refrigerant lines, what is the recommended superheat? Or… does that change according to the ambient temperature?

Another sure sign it’s low is most mini splits the Blower won’t ramp up because the ID coil sensor or Thermistor not reading proper temp.

@TaddyDigest

10 ай бұрын

Very good thank you so much for adding this Good stuff

Recover, find and repair leak, charge by weight.

Hope you found the leak after the you finished filming and repaired it

@TaddyDigest

11 ай бұрын

yup in the quick connects

any 110 volt mini's with heat ? that arent power hogs? Campground has a pile of people wondering

No leak check before recharging?

@TaddyDigest

Жыл бұрын

no needs replacement

@NeighborhoodDada

Жыл бұрын

It’s a Mr Cool probably HO DIY not worth fixing.

As well as, with a mini split you can expect a TD higher than 20°

@TaddyDigest

Жыл бұрын

yupp

Mini splits can have a much greater Delta T though

We're is your video on how to work on mini split

@TaddyDigest

11 ай бұрын

kzread.info/dash/bejne/a2eOppqpn5fSnps.html

I don't have much experience with mini splits, can someone tell me why both lines sweat? My guess is that the expansion valve is inside the condenser...see now I don't know what I'm talking about someone tell me why please.

what about the obvious leak

Beer can cold

Crazy

Would an ac system lose refrigerant over time? Or better yet, is there a reason to get your ac system 'topped off' if you've had it for 5-10+ years and never had an actual leak.

@TaddyDigest

Жыл бұрын

Should never run out of refrigerant If it does then there is a leak

There's no liquid line they're both vapor lines expansion valve is in the condenser.

everyone talking about saving the customer money by not doing a better repair must be getting discounts on their 410a

9 outta 10 times it's a bad flare joint. Don't use the factory flare ends on new line sets. Make new flares & use the correct flare nut that comes with male end. Oh yeah & use nylog!

@TaddyDigest

10 ай бұрын

Excellent advice

!he electrician installed his own Mini split, Ignore all the advice from the guys that know and did not use a torque wrench on the fittings, with the standard result! The fluid leaked out and I got to do it again.! Lucky for me, I know one of you. My friends is in the trade! after I got the leak stopped, he came out and filled it up for me again! Moral of the story: Listen to the h v a c guys that do it all the time!! Torque down the fittings!

KZread let anybody on here

Best on those is to start over and recover charge and weigh in, such a pain.

@TaddyDigest

Жыл бұрын

yup exactly

@wtz2400

Жыл бұрын

​@@TaddyDigestjason

@wtz2400

Жыл бұрын

Look like a guy I went to martin park with

those are expansion lines.. suction and discharge are inside.. 23 year pro

Rejecting heat is always good. Lol

@TaddyDigest

Жыл бұрын

Oh yeah

First problem is your working on a P.O.S. Mr. Cool, throw it out and put in a nice mini split, fujitsu

@TaddyDigest

11 ай бұрын

Good call!

if he loses, he escapes

The Best way to tell if your low on charge is to look at your vapor saturated temperature, If it is below 32 degrees you know your low on charge. The freezing point of liquids is 32 degrees, so when you add refrigerant to the system you want to make sure your above 32 degrees but never above 45 vapor saturated temperature 👍🏽

@TaddyDigest

10 ай бұрын

Very good my brother yes sir you're exactly right

@IsaacH24K

10 ай бұрын

@@TaddyDigest Yo teddy, Do you have a number i can contact for assistance? Im having trouble with a samsung inverter error code

Big question is where is it leaking. I'll tell you. It's those shity connections where it connects to the evaporator. When installing these systems just cut those fittings off and sweat them together.

Where's the leak though? Did the freon magically evaporate?

@TaddyDigest

Жыл бұрын

indoor coil

Both those lines are lo side vapor.. the eev is in outside unit .. Learn your trade ..Dont be a tourist

where do I get the refrigerant

@TaddyDigest

5 ай бұрын

from a hvac wholesaler or distributor

Estimate for a 4 mini splits in every units three family house ???

@heatncool

11 ай бұрын

Yeah, I'd also like 5 estimates for my imaginary homes. You know I just want to know prices. Get to work taddy! 😁

yes you got it right BUT! the best way you can know is standing pressure . looks like you need more training !

@TaddyDigest

11 ай бұрын

Thanks for your support thank you for watching

Need fix leak also

Beer can cold...

A guy that gives a shit, you Taddy is the shit

Which company do you work for bro, I would be interested to work as I'm presently working as a HVAC Forman in Kuwait

How about measuring sub-cooling and superheat ... duh!

@TaddyDigest

11 ай бұрын

lol 😆 🤣

What about the leak?

Umm. No disrespect. You always recover, pressure test, vacuum, then weigh in the refrigerant for a mini split. I mean, that's how Fujitsu thought me. It's cooling, though 😎

@TaddyDigest

5 ай бұрын

That is best practice yes thank you for sharing my friend

You can't check the pressure on a mini split with gauges you have to weigh it out

@TaddyDigest

7 ай бұрын

that's correct