As a 42 year veteran of refrigeration work I must applaud your video! Great work, great technique. I did A LOT of window a/c repairs such as these. Once in a while we would even have to bypass a severely damaged tube in the condenser coil just by tracing out the flow and un-soldering and re-routing a tubing loop on each end to salvage a large condenser. Keep up the good work.

A customer that has you do a repair, such as this, has no idea how fortunate they are

Great video. For someone who has never done a repair in the fin pack, this video was EXACTLY what I needed. Thank you! (many times over).

Years ago, i put a screw that was too long on a Goodman package unit when i was a pm tech. I learned that day first hand” the art” of coil repair. Great video

Great repairs. Done many myself the exact same way. Brazing is a skill that can make life easy or break you. The point of your video is lost on some. Not everything can get replaced. Sometimes you have to use the training you went to school for instead of just selling a new unit. I'd rather be a good technician than a good salesman.

Great video my friend. I used to never fix coils by the fins... I was always worried the pipe would be too thin to braze without melting, until my cousin who is a roofer dropped a nail off the roof and it fell into the condenser fan and the fan hit the nail into the coil... so trying to save him money I brazed it and it worked fine. Since then I always give the customer the option to try the repair first. Keep em coming friend.

I usually put a indentation around the hole with an awl to create a funnel shape before brazing.The brazing rod will puddle with more strength.

Good job brazing that up. You can also take some copper wire and wrap around the hole and Braze the copper wire to the pipe. Helps keep solder from getting into pipe.

Thanks for this video brother. I watched it this past weekend. In class tonight a guy in my group burnt 2 holes into the suction line when trying to braze. They were going to cut it out and fix it that way. I said let me try something and I patched them both, no leaks. Great videos bro, keep it up!

A bit of semantics here. Don't demote your work by calling it an art. Its a skill and you did it well. GFM

I've done many of these repairs, relatively easy. The tough ones are the ones where the leak is in the tubing coming through the fin pack wall. You should do a vid on that!

You make this look easy, but if you've never done this befor it is challenging. Thanks for the video

Wow a real surgeon when it comes to HVAC. Very impressive

For coils I’d go with a turbo torch or map blowtorch just saves u from blowing out the copper they make it so thin nowadays also ur practice is better spent on the tube sheet seeing leaks form there regularly and it’s a more challenging process

I truly appreciate you showing us this video. It has definitely helped increase my brazing skill. Thank you so much.

Wow that braze job was near perfection. Way better than anything I've ever seen. Could you also build up a hole like that with Stay Brite 8?

Nice job! I tried brazing a leak in a car ac condenser on Friday, got the leak fixed but made two more leaks in the row below.... Got a new condenser on order now! hahaha

Coil repair, and the seemingly lost art of fin combing, are 2 things fewer and fewer people seem willing to engage in anymore. :(

Great job this actually happens to be my specialty lol every time it’s needed (frozen heating coil,Chilled water coil, or condensate rot (steam) or as you mentioned screw punctures I get the call. Awesome to see a video about it this does take quite a bit of skill to do

Great vid, but with today's coils, all aluminum, , customer needs a new coil, your techniques are wicked awesome, learned a lot, keep up the great work

I had this done on a rooftop unit of ours it started leaking it is an older unit but didn't want to pay to have a crain lift it off the roof so. Had it patched unit is a late 80s early 90s unit it has been holding for bout 4 years now.

Thank you. very interesting to see this job completed.

Nice work. I always feel good after saving my customer some money on a mistake made by one of my fellow HVAC techs or myself. Sometimes the customer is not grateful even with a solid repair line these.

Like the others have been in the field for almost 20 years just learned A couple of years ago that they make aluminum solder sticks which works excellent but you have a very nice technique you’re slow you take it easy and you do it right thank you for the video!

Nice repair,iv also seen guys wrap copper wire over the hole before they braze

Rather than spend $800 on a new one, ( the $800 to recharge the system is more than I have right now) I replaced one of those 180 degree bends that was leaking. I soldered on a pressure gauge and hooked up an old salvaged A/C compressor to pressure test it. I brazed the pin hole leak but the bend was still bubbling up like a sponge and when I tried to braze over it, it just melted away as the bend was thin as paper, but the rest were solid. It lost zero pressure over night.

Often these are tricky to locate in the fins! ~ Excellent vid tips!!

Watching/hearing you was like watching Bob Ross in the mornings lol. I had a customer playing darts and missed and punctured one of the pipes in the coil.

The worst leaks to fix are where the tube passes through the side support into the coil pack. My method is to drill holes in the steel as close together as possible to weaken the steel. Torch the steel to soften and weaken it more. Then use a punch and hammer to push the steel back, exposing the copper tube that has the hole rubbed in it. Then clean tube and patch as needed. Have you ever seen this done? You need the hands of a surgeon to pull it off without killing the patient.

Well explained, thanks!

Our instructor made us weld heavy gauge restaurant aluminum foil together before we got our certificates. Practicing on scrap coils is an excellent way to hone your skill with rod & flame placement. Dont wanna roast those fins

Thanks for the demo. It would be nice to see if it holds a vacuum afterwards.

Thanks for the video. Now i have more confidence fixing mine.

Yeah. Aluminum coils are a pain in the ass. Had a guy pop a hole in one with a screw and all the wholesaler had was some torch style epoxy stick. It slowed the leak at best. Nice tutorial though. I've done this repair a handful of times and it's always worked well with copper. I always used a fresh blade on a box knife to cut the aluminum fins. It works fast if you don't mind losing a little more fin.

Never worked on a Refrigerator before but decided to tackle changing the Compressor on my Kenmore Elite...Stopped Cooling. Welded in the New Compressor and Filter/Dryer...pretty proud of myself at this point! Vacuumed out the system and let it set for 24 hours... held a Vacuum... even prouder still!! Put some R134A Refrigerant in but the system refused to get even a little bit cold!!!! System would only come out of Negative to 10!?!? What did I do wrong?

Excellent training video!

Thank you for taking the time to post this video.

Videos like this one keep my pockets fat from all the failed repair work on coils 😹👍🏽

Absolutely amazing

Wow lots of value on your channel. Great video man!

Great job

To the people who think this is bullshit ,I fixed many of leaking coils for people who couldn't afford it,I have repairs that have lasted over 10 years now

I was wondering if you used any flux. I didn't see any. I always find it helps bond the silver braze. Also I use a razor knife to cut away fins by the repair to be done and push them out of the way. Sometimes it leaves more fin for heat exchange later.

Very good vid Bradley my boy👍 I've never put a hole in a coil 😂

Hey have done it before I do refrigeration and had to do on various condenser and even on a soft serve condenser!!

Thanks for your video, I am about to try this repair for my first time, this video gives me confidence..:-) We have a Reem HeatPumps Allot of our units have a problem where a small crack happens at the joint where the small low pressure switch pipe connects to the larger tube - the soldered seal at the joint cracks- it’s not an easy spot to get at , And our units are on the rooftops sitting on sketchy platforms....;-) Thanks for the help..:-)

Job well done, can tell you take pride in your work.

Nice technique and instruction

Great video. Very clear instructions!

never seen anyone put a screw in a coil. however i have seen someone put a broad head arrow threw one.I removed the fins managed to slip a coupling over the hole and weld it up.

Adding nitrogen does blow dust out.. but mainly used to keep the inside of the pipe from turning black from the high heat. And getting the refrigerant contaminated

Had two holes once different places in same circuit but close. Bb gun. Bypassed looked funny running outside the coil only about a foot but it worked.

Thanks for the video

Thanks for sharing

U must have a lot of customers!!!...99.999% won't touch that!!@ great job!!!

green guy here. are you a wizard or something? that's some serious brazing skills. I do practice with oxy-acetylene though. Idk why, but I enjoy it more than a turbo torch or something like it. Would you try to comb out and fix up the bent fins as best you can after you've finished?

Thanks guy! I got a new job building/brazing starting monday and now i have an idea how to braze a hole. Hopefully they don't work me like a robot at a sweatshop/assembly line.

Good job

Thanks so much. Learned alot from you're video's. Keep them coming.

Does this work for aluminum coil as well

Is there a interior sealant for small leaks? Some said something about using it. But great video. We learned to braze with oxygen acetylene.. two thin pieces of steal... Remind me of filling a hole in a car body. My coil froze and tech said it was cracked.. was just gonna replace air handler. But heck.. why not try

You made that look to easy nice job👍

watch video very well explained and very well helpful and presented and its what i need to see Thank u much

Excellent video sir....very nicely done. Thanks!!

Damn that is so great work.

I've patched a few of these. Only had one that eneded up restricting the liquid line but it was worth a try. I'd like to see a repair on an aluminum micro channel. Fortunately I haven't come across that yet.

Nice job and nice video

very good video ! Thank you for well done video .

Great looking repair.

Nice job and video clarity! Thank You!

Hi HVAC in SC, first off - thank you for a really great video! Quick question - If the hole in the finned tubing was large, say a half inch longitudinal one, and almost as wide as the tube itself, would you cut out the hole portion, clean off the fins left/right, swage a piece of 1/4" tube on both ends, and try to insert it as a fitting onto the coil tube and then braze/solder that?

Awesome vid. Thanks for the tutorial.

Great video!!! Thanks for sharing

You will have condensate problems on a evap. coil. Meaning the water will not run down the fins and will drip straight off the coil where the repair was made.

I need help one of the ac coils has a hole i laid it down and didn’t realize something sharp was under next thing you know it let out a steam noise can i still use it or would burst out in flames if i use it with a hole

Nice sharing

Great video! Very informative.

Put one question guys after this is it hard to put pressure back into the unit

First time seen your channel/video I'm impressed, thanks for sharing 😁!

Excellent vid.. like how u explained it👍

Hey Nice work. I would think there’s some money to be made making these type of repair on hard to get replacement copper coils. Excellent video

Could I use a MAP gas torch? Trying to DIY this at home. I’m broke

Great teacher! Thanks for sharing.

Nice repair

Nice job for sure, I would have liked to see a cut away to see the inside I bet it would have been more than sufficient.

Can somebody tell me what brazing rod to use? And can I just use a propane torch?

Nice work. Thanks for the video.

Awesome 👏🏻

It does reduce the absorption of the heat doing that kinda of repair on the evaporator coil because of the loss of fine but does save a old coin if the Client can't afford a new coil.

Nicely done.

they said that Coil is leaking so They will replace the evaporator coil which is 2000$ ...but I will try to fix it by my self Thankx brother .... what kind of stick your used for weld?

Isn't that flame a bit dirty? Or correct me if I'm wrong.

Nice job

will a small propane torch work for this

Nice video

Awesome job

Great work man

Flashbacks man, I used to make those condensers... Hand brazed over a million joints. I wonder if you would consider using a flux cored sil-fos, you can braze dirty copper with it, can also braze steel to copper with their 18%

It is always so painful throwing a whole air conditioner away just because of small leaking hole...good job

Thanks for the info