8 Common HVAC Questions Answered by Craig Mig and Ty Branaman! "AC Service Tech Answers Podcast!"

In this HVAC Training Video, Ty Branaman, @love2hvac and I Discuss Brazing Techniques, Capacitor Issues, Solving Low Voltage Troubleshooting Problems, and More! Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
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Timestamps
0:00 Intro
0:21 What is the Difference Between Silver Soldering and Brazing?
3:33 Why Would a New Run Capacitor Fail Only After a Few Months?
5:30 What is the Fastest way to Pull a Vacuum?
7:59 What Level do I Need to Recover Refrigerant Down to?
13:54 On a Two-Zone Mini Split System, do I Need to Vacuum From One or Both Ports?
16:46 When Troubleshooting Electrical Parts, Where do we Check and How?
23:05 What is the Problem on a Gas Furnace Packaged Unit, if the Flame Goes out When the Fan Turns on?
26:26 What Happens if you Remove the TXV Bulb from the Tube?
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⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided.
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[@B_HVAC]

Two out of the three trade GOATs right there. The only one missing is Bryan Orr. Thanks guys for all you do, we all appreciate you sharing your knowledge.

[@acservicetechchannel]

Our pleasure! Thank you for enjoying the podcast!

[@242sp]

I thought you were going to say Jim Bergmann

[@travisclark8515]

Or what?

[@B_HVAC]

⁠@@242sp ah yes Bergmann, I forgot. Make it two out of the four GOATs then.

[@B_HVAC]

@@travisclark8515 Brian Orr. That’s his name

[@jw5297]

Nailed it with skill. And why the trade is drastically underpaying technicians especially where most techs pay for their own tools, and depending upon what all you actually work on, you can spend tens of thousands of dollars to be able to do your job.

[@krishuntzeroable]

I recommend you to all these new comers entering the trade. Very thorough explanations.

[@LDriggs]

I truly appreciate learning from both of you. Ty is so great about safety & doing it the right way! Thanks to both of you

[@acservicetechchannel]

Thanks for watching!

[@72degreesair-conditioninga6]

Thanks Craig for answering my question. You don’t know how much you made me grow as a businessman and teacher. You really saved me and I tell my students to subscribe to your channel and website. Thanks again Kevin

[@acservicetechchannel]

You're very welcome Kevin! I'm truly humbled to have played a part in your growth as a businessman and a teacher. Knowing that my content has been valuable to you and your students means the world to me. Thank you for spreading the word and encouraging your students to subscribe!

[@edinaldomanuel8329]

Thanks Greg for this opportunity, I'm on my 30 years working as a HVAC contractor. The appresantion is amazing.

[@hugogarcia7574]

You 2 are my favorite teachers. Glad to see you together

[@garza7676]

Wow so cool to see TY on your channel . I went to NTI when he was an instructor there . He wasn’t my teacher but brought a lot of knowledge to students during he’s tenure there .

[@acservicetechchannel]

Thanks for sharing!

[@BigWalffle14]

Same here!! His teaching style is something out of this world and that made watching his videos enjoyable hehe

[@kcarter8702]

I’m also a NTI student and watch a lot of Ty’s videos

[@eulaliorodriguez5325]

Thank you for sharing this video. It is helpful.

[@JaykeSapalaran-iq3qs]

GREAT EDUCATIONAL PODCAST ❤

[@Elisummit845]

Great video. Loved it. Hope you guys do it again.

[@carstencroessmann]

I would like to see a VRF Y- joint in the future and how it should installed/brazed the right way. On a multisplit unit with one pressure and one suction line exiting the outside unit, and get splitted into three indoor units. For instance Hitachi. Thanks from overseas Germany

[@ronnyt9279]

Great educational.🙏🏽

[@mrtonge5323]

Great job

[@user-lx2pn3dj7r]

The 2 of you are my favorite thanks allot

[@rv10flyer84]

If you find a capacitor going bad within a month or two, you could have a compressor going bad. I’ve had several in the last 20 years that had failed compressors a couple months later. Good luck trying to get distributors to bring in US made capacitors. Everyone’s all about “go USA”, until it comes to paying twice as much or getting stocked at the supply house.

[@jpenn727]

Another great video, thanks guys.

[@acservicetechchannel]

Thanks for watching our video!

[@cal8042]

For the bad capacitor make sure drain safety switch not short cycles unit or bad thermostat, bad condenser fan motor , power disruption s ect

[@mwelsh64]

Right off the bat I got a question answered! Press fittings. I'm glad to hear there was no thumbs down on these types of fittings. I am a happy camper.

[@acservicetechchannel]

Glad we could help!

[@codykruies3414]

Just saw a video with press fittings blown apart going to a cooling tower.

[@mwelsh64]

@codykruies3414 Just watched a video of Zoomlock fittings. 499.8 lbs for over an hour with proper prep. Just some really cool choices out there.

[@MaMa-qh4dy]

NOT Batman and Robin. TWO BATMANS!!!! Thanks guys for your outstanding content!! Much appreciated!

[@abdolkarimmehrparvar6583]

Amazing please make more technical Q&A like this

[@acservicetechchannel]

Stay Tuned we have more Q&A content on the way!

[@CLNFlorida]

Thank you !

[@acservicetechchannel]

You're welcome!

[@lolkzmk3548]

HVAC GOATS!

[@ducharmehvactraining925]

fantastic!

[@kwamepaul4418]

@Craig. The original evaporator was replaced on my 2017 TRANE XR 5K system on 3 August 2023. On 4 May 2024 an HVAC tech from the installing company came out to diagnose why system was not cooling. $150 later it turns out there is no refrigerant in the system, then quotes me $888 to only conduct a leak check? A total ~$3000 for complete the job? It’s been 90 deg in the house. Thank you very much for your books and videos; I am well on my way to becoming an HVAC technician. It turns out one of the lines from the TXV is leaking at the joint it enters one of new evaporator coil tube (possibly manufacturing defect). Its aluminum if needs be how can this be repaired in the field?

[@electrolatif]

Thank for sharing your knowledge ❤ I have very important question, hope can her your answer soon, Stay brite 8 solder and oatey 95/5 solder, are you recommend this for aircon soldering??

[@craigmarshall40]

Great video thank you for all of your videos I watch both of you guys and Bryan 😊 and truly appreciate both of you I would not be where I am at because of you guys

[@acservicetechchannel]

Thank you for your kind words and support! It's fantastic to hear that you're finding value in the content from both me and Bryan.

[@dougjohnson489]

Good Video.. Matt asked about "2 Capacitors blew within a few months", I also found that "Dirty Voltage" (Mostly Low or High Voltage) could be the Problem! 😎🔧

[@rv10flyer84]

Or a compressor on its way out

[@mikey3877]

I'd like to spend a week doing service calls with these 2 gents.

[@user-dd6eb9bo8r]

Thnxs more

[@codykruies3414]

The two legends meet! ❤

[@ivanpena6774]

Together 50years Of Knowledge Really Dope Both TradseMen Know Exactly How All Components Function Installing An Servicing Breath Of Fresh Air If You're Intrested Or Actually In TradesMan School For HVAC Yea Your Tuned In To Greatness An Humble ☝️👑💜💪🇺🇸

[@samhaazratechnicalsupport]

Very niece sir ❤

[@nyanziabdallah944]

My best two. You people deserve a billion dollars each😊

[@rv10flyer84]

No, we already have enough overpaid CEOs and Executives, flying around in their tax deductible bizjets in the USA. We definitely don’t need two more.

[@w0lvez1]

Why do residential & commercial HVAC recovery machines don't have oil separators like the ones used in Automotive?

[@shine-cg9uf]

💪🇺🇸👍❄️ very informative session

[@acservicetechchannel]

Glad you enjoyed it!

[@michaelrodriguez3921]

Silver solder is not the same as soft slider used in plumbing. Silver solder is used on refigerators/low temp

[@rongthach7719]

I am using Honeywell thermostat for my new Trane heat pump a/c system. When I choose Off mode in thermostat then I can see room temperature rising from 77 F to higher like 78, 79 and so on. I choose Cool mode to run AC and set temperature to 77 F while room temperature is 78, 79 or 80 F. System starts to run AC. I expect to see room temperature drop from 80 to 77, or 76 so that system can stop. Room temperature drops to 77 and system stops. However I do not see room temperature rise above set temperature 77 F, but system starts to run and from now on I see no change in room temperature. It is 77 F and system runs and stops in a cycle with no change in reading room temperature from thermostat. The run and stop cycle is is every 5 minutes. I watch over the run and stop cycle for no heat pump a/c system, the cycle is at least 25 minutes and the thermostat show the rise and drop of room temperature like: set temperature to 77 F. When room temperature rises to 78 or 79, system runs cooling. When room temperature drops to 77 or 76 F, system stops. 25 minutes later room temperature rises to 78 or 79, system runs. The cycle will repeat. Can you help to give me instructions about what is wrong with my new system. The previous system on my house of 1630 square feet is 3 tons heat pump a/c. This time the contractor places new 4 tons Trane heat pump a/c.

[@zachosborne6577]

If you set it to 77 and it stays there it’s doing its job. It is supposed to cycle on and off, how else would it keep it cooled to that temperature?

[@nicbuse6019]

Hello, I have a Trane air handler model TEM6A0C42H41SB TXV 3 ton with 14 subcooling listed in the manual. The outside Trane compressor 3.5 ton model 4TTR6042J1000A. On the plate is says 8 Subcooling. Can you please tell me witch subcooling to use. I was thinking 11 is within 3 degree less than 14 and withing 3 degree higher than 8.

[@rv10flyer84]

The installation instructions list two outdoor units. Neither one is the one you’re using. So follow the instructions and use the outdoor unit dataplate which is 8° subcooling.

[@nicbuse6019]

Thank You@@rv10flyer84

[@Jpgiggity]

Hey if you have no idea I understand im in Australia and I keep getting cockroaches in my aircon and my room is tidy and there isn't anything that should be attracting them yet I keep getting them do you have any suggestions

[@rv10flyer84]

You might want to call an exterminator.

[@tooterplumber1128]

I was taught that silver solder and brazing is the same thing in plumbing. Both do not use flux where as soft solder uses flux.

[@3beltwesty]

Technically Brazing is above 840F and Soldering is below 840F.

[@tooterplumber1128]

@@3beltwesty yes you are correct. But before lead free solder became code, soft solder was 50/50 which was in roll form and silver solder was in stick form. Therefore silver solder and brazing were the same because it Tooks both of them to get above 840° to be used.

[@vincentdelaney1900]

didn't know solder had a higher pressure

[@joseph.papajoe5604]

Brazing

[@mikev.1034]

👍👍

[@ivanpena6774]

N.J. to F.L.A. GREATNESS Thankyou Priceless Refrence The Definition Of Each ☝️👑Teach ☝️👑At Its Best My Opinion 3 Years whatchin Still Learning This Industry Will Not Be Replacing TradesMen An TradesWomen For Another 50 60 Years Job Security 💪🇺🇸

[@mikestevenson1819]

Hard start or soft start device ?

[@rv10flyer84]

Depends. Are you on solar, you need a soft starter. Do you have an old or new junk Goodman compressor that won’t start, you need a hard start.

[@litoyaxca9382]

Beethoven and Mozart

[@AnilKumar-ji1ux]

Sir please Hindi Indian language video upload ❤

[@hussainahmed8844]

Sir iam hvac technician so I need job

[@simplyamazing880]

I have never heard anyone using soft solder for Air Conditioning. Soft solder is for plumbing and such. Silver solder or silver braising for AC and other such higher pressure systems. Then you spoke about braising. I wasn't too impressed with that whole conversation.

[@kenthomas4668]

Yea we did that for decades not sure what you are talking about.

[@kenthomas4668]

silver soldering is soft soldering

[@airlogitecQ-electrical]

wow