LG Refrigerator compressor replacement 

This is great video. Thank you so much.

100 psi to test is just enough. Over 130 psi you can damaged your evaporator . Great video

Thx LG for making the compressor from hell. I remember when compressors lasted for decades.

Couple things, you don’t need to sand anything on the compressor, you definitely don’t want grit in the system… If your 15% silver brazing wire isn’t flowing on copper then you’re using way too much heat or not enough, copper actually self cleans when it’s hot, you’ll see it turn shiny when it’s at the right temperature. The stainless lines need 45% silver and with flux… 15% won’t flow and will become brittle and leak on stainless, so you’re using the wrong wire on the stainless… 100psi is more than enough pressure for leak testing, you’re near the burst pressure of the evaporator at 250psi, this system will never have more than around 150psi on the high-side and no more than 90psi on the low-side… Another note is you really want to purge and flush the system and it’s a good idea to replace the condenser… A micron vacuum gage is really not optional, there’s no way to see your vacuum level without one so if your equipment isn’t perfect you will likely not end up with a proper vacuum, time, like running 15 or 20 minutes is no good if you want to know that it was right… I’ve seen hundreds of failures because a vacuum gage wasn’t used it’s the most common problem of overheating compressors with non condensables (air) in the system…

This was great, with only two issues, the pressure test with the nitrogen. You used much higher pressure than the low side operating pressure. The low side pressure is rated 130-140(PSI) or so on these LGs. Going up to 250(PSI) can cause the lower strength aluminum of the evaporator to explode and ruin the part causing you more work. Second, you should recharge with the refrigerant upside down so you are adding liquid. It's faster and easier for your scale to measure the liquid than the vapor state of the R134a. Edit: Oops, you overcharged the system. Slightly undercharging is okay, you lose very little efficiency, however, overcharging greatly reduces the efficiency of the system. Better to slightly undercharge than to slightly overcharge. But, the amount is so small it's probably a small thing.

Excellent video and thank you for making it. My 2016 LG needs compressor replacement now. Would not normally do it but supply chain shortages force me to repair. I would have never thought of the software load. Excellent explanations of what you are doing and why.

Thanks a million for your through and professional tutoring. I appreciate your dedication and selfless sharing of your knowledge.

Lg is sending out the repair guys on Mon to change out the compressor on my lmxs28626s/01 that has died in less then 3 years. I know now what to expect and demand plus that software update is one that I will make sure they get done. Great video!!!

Great video from a great tech, only thing different I do is flush the system with nitrogen after we remove the compressor.

Very well explained. Excellent video for learning and understanding about compressor replacement. Great job. If possible, please explain, how to extract gas from old compressor before replacing. Once again thank you very much.

This is the video I was waiting for, great 👍 teacher... thankfully I am

Excellent video. Thanks a lot.

Please fellas, incorporate dry nitrogen into your brazing - especially with delicate systems like this which use cap tubes.. They plug so easily and your customer is worth that small extra step. Excellent video.

Interesting that these are r134a just like a car. Also of intrigue is the charging with nitrogen to test. I've only ever worked on automotive systems, so this is a whole new world for me.

If you're replacing the problematic LG compressors, you will need the new TCA 3811706 / FLS075LANA LG universal compressor with the red vertical stripe. It replaces like 50 other compressor numbers, and needs to be programmed, but beware, if your refrigerator is 2014 or older, you'll need to replace the control board too as the pre 2015 boards won't accept the programming. Brand new control boards come pre-programmed so the program tool is not necessary when buying a new board.

I liked everything except you didn't use a heat blanket to protect the other parts of the refrigerator from the torch. I could literally see the plastic start to melt and the foam constrict. Half expected the plastic in the background to burst into flames. But I leaned some things. Thanks for sharing. Best Wishes & Blessings. Keith

thnak you so much, this is much easier to undersdand

Great job. Thank you

You are awesome... Thank you so much.

Great video

Good jobs guys!!

Thanks! im more confident doing it on my own now.. nice video

Good job ,where can i get the usv programmer that you used to program the control board?

Thank you for the explanation

Good job

My compressor died weeks ago but only realized it today, guy wants around 1200 to fix it. Thanks to this video I think I can just about replace it myself now. Only thing is I'm not to sure about that welding setup there since I've never used anything but solder but perfect time to learn.

Absolutely well made ,,well explained…!!!..”THAT IS THE CORRECT WAY TO INSTALL LG COMPRESSOR “!!! Excellent teacher..very patient very skilled technician…lots of detail explaining……excellent career for young person.

GREAT VIDEO. The only thing is that you are supposed to solder with low flow nitrogen. If not the new lg compressor could fail again in about 2 yrs. because of the gunk inside the joints.

Great video! Thanks! Is the jig good for all LG’s after a certain year or does each model have a specific jig? Where is the best place to order that universal compressor?

I have an LG LFX31925SS/00 and it is not getting cold. Im getting a LED blinking 6 times at the time. I can see the fans working and i can tell it is not frozen inside. Capacitors checked ok.. how can I tell if its the compressor or the motherboard? Thanks for your video! Amazing work!!!!

Great job! Does the new compressor come with the service port to solder in, or do both service ports come with the filter dryer?

Cool 😎 👍

Hey nice video just wanted to know how long does the oxygen and actelene set last

excellent video. question? How do you call the usb device to update the information on the motherboard? brand and model? Thank you

No wonder no one likes these compressor replacements. No wonder over 50% of the jobs is done incorrectly. Nice job. If we had these kinda techs everywhere I would buy an extended warranty. But, with the way the service industry is today, and lucking out to get someone that actually will do the job right, you are better off tossing it and buying another. Unless you like to wait months and months for the repair tech to keep coming back with new parts. The real question is, what fridge to buy that will last the longest.

You should always pull a vacuum to 500 micros. Charge by liquid and not gas always braze with nitogen

Hi, what brazing rod did you use to solder copper and steel? Is it Harris siver rod?

Motherboards and software updates? Madness. I'm going to keep my 17 year old fridge the rest of my life and stock up on enough spare parts to last 50 years. Interesting video however. No idea why I'm watching it.

I see you believe redder the better. lol Good video.

Pick up a digital vacuum gauge. That'll tell you if you have non-condensables in the system during a decay test. Put the gauge on the opposite side of your vacuum line...i.e. put the gauge on the liquid side while the suction side is on the pump.

I have a lrdcs2603d that is giving code 3 on the control board. Any info you can give to help out? LG refused to fix it under warranty

This job much more complicated with a dual evaporator system and darn solenoid that controls pressure to each one.

Isn't it a good practice to purge the system with nitrogen as you braze in order to keep the tubes clean? I know in HVAC systems, if you don't purge with nitrogen as you braze, you can shorten the life of the compressor due to the lines getting dirty as you braze

Is a software upgrade necessary along with installing a new compressor?

Where can I get the jig? The one to hooked up to control board to reset. Thank you so much.

How much do charge to replace a compressor from Kenmore refrigerator (5 years old)?

I see some using silver solder then I see brazing? Is silver solder ok? Map gas.

Do you have to put the board in test before evacuating system? To allow both sides to empty?

Just for your information, you can release certain refrigerant gases into the atmosphere as long as there non-ozone depleting

lmxc23796d model of mine would this be the same way to fix my lg thank you

You have way to much heat for such small lines. You didn’t purge with nitrogen. Now you have copper oxide scale in your system. You should not have put those access valves on the system. You now do not have a hermetically sealed system. You should have used the process tubes for purging, evacuating and charging. No need for shraeder valves, and they have been known to leak. You exceeded the low side test pressure. 100 psi is all you need. You should have just charged liquid thru the dryer. You could easily get in those few ounces without running the system. By a micron gauge. It is the only way to guarantee you don’t have a leak. Please take this as constructive advice. Hope it helps.

Did you use the same soldering rods on all connections?

Thanks, after watching this I realize the $200 in labor the repair guy wants is fair.

where can i find a person in Spartanburg/Greenville, SC area who can do this

Ditch the giant rose bud and drop the fuel pressure on the torch!! Can you not see all the plastic in the cabinet melting while he brazes? No need to get it so hot, risk further damage and contaminating the system without a nitrogen purge 😬

Great Video. I have a question, my LG linear inverter compressor stopped but I'm not finding the same compressor # to replace, can I use another compressor # from LG or another brand?

A vacuum pump not only removes noncondensible gases, but it also removes moisture from the system

🎉

Wow how common are those smart refrigerators because I'm attending UEI college for HVAC I've been there for about 5 months and they have not talked about smart refrigerators one time at all so I'm hoping there are not a lot of smart refrigerators but if so they better start talking about it at my school or else I want money back LOL

dont you have to charge r134a as a liquid? If so, why isnt the tank inverted?

This is the "real" repair. Replacing fans and motors is the easy stuff. At this point I boy a new refrigerator in most cases

How much per minute ir hour are yiu charging there? Or do you charge a flat rate? How much does nitrogen cost? I am self-employed in Wisconsin.

Where can I get the computer jig to update my software

If you are new at this, don't use a rosebud tip on a home fridge lol. This guy did because he knows what he's doing. For the new guys, use a regular torch tip please.

I need to replace a condenser in my refund. What solder wire can you use? And should I use any paste with it?

Could someone extend the copper pipes through a wall and have the compressor operate in another room? For sound control

If you can buy exact same Lanier compressor you still have to update your pcb board please respond

How can you to know compressor bad need replace sir ?

So do you test for acid in the system after a compressor failure, like you would in a AC system?

Where to buy upgrade tool?

Where do I buy the gadget to upgrade the software with?

You work in outside good vented area. But when you do that all what you show here you should do flush system before installation . I though This LG project is should be easy like another brand with soft brazing don't used Oxyacetylene Torch when you work with oil compressors inside the customers side, it is not safety.

What is your contact info. I have a Kenmore Elite refrigerator with LG Linear compressor that was purchase in early 2016. Both fridge and freezer does not cool down to the proper temp set at 38/0F. It hovers around 50/15F. Do you think the filter drier is clogged which is causing the temp to not cool completely or is a compressor problem or both?

How much do you normally charge for this type of repair ?

Great video! My LG refrigerator needs a new compressor and it's still under 10 year manufacturer's warranty. Are you in the Bay Area (94591)? I would like to hire you to fix my fridge if you are available.

No heat shields? Just melting plastic

I know you must have been joking about that $75 filter drier from LG. Is it like a catalytic converter that has precious metals inside? It can't be any different than the drier I bought from Marcone parts for $3.50 wholesale. At $75 your cost, you'll have to charge a 40% markup ($30)to the customer for that drier, $105.00. You should be using a heat barrier blanket or shield when brazing to keep the torch flame from impacting any plastic or flammable components. You melted the plastic defrost water basin and the black insulating foam around the condenser fan. Luckily the condenser fan blade is sturdier plastic so it didn't look like it melted. Both the lo-side and the hi-side tubing were long enough that you could have brazed the compressor to both without having the compressor sitting fully within the compartment. That could have helped prevent the melting of the plastic you experienced. Your tip is too big on your torch. You don't need a turbo tip, blasting that huge flame that's why you melted the plastic pan.

How much time to do a job like this?

At or below 500 microns

Your over heating the copper WAY too much. You need a smaller tip on torch. You also don't need the brazing flux. Only needed for steel to copper or copper to brass.

To big a tip on your torch. You are getting the copper way to hot.

how much should this work cost?

You left out refrigerant recovery procedures.

2017 LG french door, compressor failed. Hackjob tech replaced compressor under warranty 36 hours ago. Now evaporator refrigerator fan runs constantly even when door is open and refrigerator/freezer Temps are 10f too high... can anyone help? This has been miserable.

You should have charged it thrue the liquid side. You opened the suction to scale it in. But that's going to give you a flooded start. Which can wash out the oil on the compressor.

R-134a canister should be turned upside down when charging

All that to go wrong

Please tell me if compressor is on warranty how long does it take to take old out put new in just labor and parts. What would this cost?😂

This compressor will have same issues as it’s predecessor. I’m just wondering why we still see this type of compressor. LG hasn’t learned anything ? I get these units ag a warehouse with this “new” version of compressor and software. Same thing. They break with in a 2 years even times way less than that. Frustrated customers all over. There is a way to get rid of this nuisance. But LG has found out the cheap way out and has tampered with previous diagram to throw techs off so they won’t repair that way. They want all the money yet they produce a crappy product. Do yourself a favor and buy American made products. Whirlpool fridges are the best get the simplest ones. Kitchen aid is also a great brand. They are the same. These Korean products are just not made to last. Samsung is ok. Still has its issues.

10 psi???? Seems a little overcharged. I heard with any sealed system the low side should be reading 0-3 psi with compressor running. I have a link to a Whirlpool sealed system training book.

Plastic is melting at 8:55 - 9:20

these compressors don't last. Good time to be a repair man on the LG....work 6 days a week 12 hours a day and make some money

OK...don't you need to drain out all the Freon in the system first?? I think I have a Bad compressor on a twenty year old GE fridge. It runs a lot, and hums at the end, sometimes clunks and then the lights dim(!) New problem: If I have one of my hall lights on things are relatively copasetic, but if I DON'T, then all the other lights dim. What could be going on?!? Early Sixties house, which did lose a leg of power back in July after storms. I already (probably) have a blown HVAC transformer and several other appliances.

Way toooooi hot WTF

He didn't take Schrador valve out of service valve before soldering it in.

Worst over heated carbon build up soldering I have ever seen.

Why are you pulling a vacuum with a pump? Run the compressor to pull a vacuum, then release...then fill up the freon...no pump needed...you also should flip the freon tank upside down...

Stop wasting that big blue. Junk is expensive.

Great video!

Great video