/r/HVAC

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A subreddit for Heating, Ventilation, & Air Conditioning Technicians. If you are not a member of the trade, please post in our Q&A sub, r/hvacadvice.

If you are experiencing issues with your HVAC system PLEASE call a professional.

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This is not a question and answer subreddit. Full stop. Any and all questions from outside the trade go in r/hvacadvice.

This is a subreddit for hvac professionals to discuss tips, tricks and information - including humor, memes and our favorite jobsite supervisors.

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/r/HVAC

173,355 Subscribers

3

Just did my first solo install - Customer very happy (Mitsi Mini-Split) How did I do?

Easy half day solo installation - how did I do ?

5 Comments
2024/06/20
06:18 UTC

3

Chef turned HVAC/R…good idea?

I’ve long thought of becoming restaurant-adjacent and becoming a service tech for commercial restaurant equipment/refrigeration.

I’ve been in the restaurant industry for nearly 20 years, currently a head chef. I’ve about reached breaking point with everyday stresses of someone in that position. I’m already used to the hot, confined and sometimes very dirty environments. I have a good idea and know basics of servicing that type of equipment, and I’m moderately inclined when it comes to mechanical things as it is. Plus pay, scheduling and benefits seem to be comparable if not better in most cases.

Has anyone here done a similar career switch? Is there a current demand for service techs in this field? Please help, and thanks in advance!

1 Comment
2024/06/20
04:20 UTC

1

Interview prep

Hey all I have an interview coming up and Im unsure how to approach it. I went in today and spoke with some of them. Told them I am green and would like a helper role. Handed them my resume and now I have an interview next week. I have no experience in HVAC but I am willing to put in the work and learn as much as I can. Also, I have my EPA certification.

How should I approach this interview? Please any advice will help! I really just want to get my foot in the door, become a sponge, and excel in HVAC.

2 Comments
2024/06/20
03:43 UTC

0

Fan motor dead

House wasn’t cooling so went outside to check and fan motor wasn’t running. Had an extra cap laying around so I swapped it real quick. Fan still doesn’t kick on but compressor does. Is this the best way to setup this temporary fan? Or blow it across the radiator while it sits on the ground?

16 Comments
2024/06/20
02:41 UTC

1

How do I become good fast?

Of course I know i’m not going to be a pro overnight but I just started a job as a helper and I so badly want to become knowledgeable and confident enough to run my own service calls. I’ve been watching videos and looking for books to read and i’m really excited about getting the " Refrigerant Charging and Service Procedures for Air Conditioning " book by Craig Migliaccio. Who are some youtubers i should watch to become more familiar with HVAC service/maintenance/installation? What are some books I should read? Any advice and feedback is appreciated and if anyone has a youtube playlist of hvac videos they like that would also be welcomed lol

2 Comments
2024/06/20
02:38 UTC

1

What do you do when you’re feeling burned out but this job is paying the bills and then some?….

I’m going on my 5th year of install. Worked my way up to a lead installer, and man I’m starting to feel Burnt out. This job started out pretty cool, I work for a good company and everyone is awesome. In the beginning it felt easier and almost fun, a lot of the time didn’t even feel like I was working a job more like being taught the tricks of the trade by good friends. Fast forward a few years and the company has grown, and it seems the difficulty of the jobs we are doing have gotten way harder than anything I ever experienced in the first few years with this company. We have a bunch of young guys 25 and under who are good at their jobs and it feels like the company has started to take Advantage of us a little bit. Before everything was truly smooth sailing and now Almost everyday feels like a shit show. They are working us like dogs now cuz we are young and able and it’s definitely taking its toll on myself and my crew too. A couple guys that are top techs that I’m close with have told me they don’t even know what’s changed but it’s not what is used to be and they’re getting tired of it all too. At the end of the day this is my livelihood for at least the next 5-7 years until I’d be in a position financially I can take a pay cut and do something else. What do you guys do when you’re feeling burned out of this job and need a way to somehow refresh yourself from all the bullshit? I do enjoy this job and like my company, but holy shit man, I’m so fucking tired. I’m only 25 I shouldn’t be this tired. I know I neeed to get out of install and out of the field eventually if I wanna feel somewhat better physically on a day to day basis, but changing careers just really isn’t an option for me financially right now. What do you guys do to stay fresh and not burn out

6 Comments
2024/06/20
02:32 UTC

0

Am I being taken advantage of HVAC?

They have only been scheduling ac/furnace full systems for a day not including all of the things the sales people miss we have to do so i work from 7am until 9-11pm every day almost.

I like working hvac and i don’t mind staying until 7-8 if needed but im sick of going home only to sleep

10 Comments
2024/06/20
01:54 UTC

9

Leaving Residential HVAC

I spent almost 2 years in this trade. I’ve learned a lot and I’m thankful for the 2 years I spent. But I do not want to return to this trade, at least not in residential. Idk about you guys, but I hate the idea of not knowing what time I’ll be off work, will it be 10am? Or 9pm? I also hate buying tools and maintaining them. I was also on piece pay too, I got a percentage of what the job cost is, so even tho it was good money sometimes, I don’t want my income to come from however much the salesperson sold a job for. And I also hate the work inconsistency, we get super busy on hot/cold days then the other 6 months were just slow. Props to the guys that enjoy this lifestyle but it ain’t for me. Peace ✌️

7 Comments
2024/06/20
01:53 UTC

0

For the super smart senior techs I have different various questions.

1). What is this from the picture? 2). Why do some techs break a pressure switch as a static pressure? 3). I had a call that there was water in the drain pan in a Upflow unit. But primary drain isn’t clogged, I opened the coil up and made sure it was clogged right when goes in the primary, I also inspected the evap drain pan for any cracks, etc . Then when I opened the blower compartment there was water everywhere under the blower motor housing, it’s a 2006 carrier infinity if that helps with an ecm motor and 5” filter.

10 Comments
2024/06/20
01:12 UTC

235

"My neighbor hit the antifreeze line with a chainsaw. He got it fixed, so we just need you to come fill it up again." -customer of the day

83 Comments
2024/06/20
01:03 UTC

10

Meet Mr wasp

4 Comments
2024/06/20
00:55 UTC

1

R22 system

Scratching my head a little over this one but I’m only playing tech support via the phone. Odt is 80 degrees F. 20+ year old R22 system with a piston. Piston isn’t plugged. No filter drier apparently on the system. Restriction? Non-condensables?

13 Comments
2024/06/20
00:52 UTC

0

How to quiet drain line?

At first I thought the noise was just the water dripping into the pipe. But after taking it out, it seems the line is making a gurgling sound. How would you fix this?

3 Comments
2024/06/20
00:47 UTC

2

Hvac school

Is it really hard? A family member wants to drop out after 2 classes and he financed it 😭

7 Comments
2024/06/20
00:27 UTC

1

GREE FLEXX Blower intermittent

Having an odd issue with a Gree FLEXX48 Fan Coil that keeps going down about once a month, i get to the customer, unit is receiving call for G but no blower operation, board is on with red/yellow status lights but the green fan ON light is off, evidentially there is some internal safety thats locked it out but there is ZERO documentation about it in the IOM or Service manual. Return duct is a little bit too small, effective opening to AHU is like 10x28 but the net amp draw for the entire system is only 2.8a so its not an electrical safety.

3 Comments
2024/06/20
00:09 UTC

0

Questions for the Mitsubishi guys *in comments

2 Comments
2024/06/19
23:40 UTC

1

Employment Dilemma

I’m a bit torn on whether I should take a job. I met with a company, and quickly received an offer of employment. They’re willing to take me on part time while I finish school; however, they’re offering $18 an hour. My hvac teacher (who introduced me to the company) said I shouldn’t take less than $20 due to my knowledge level. He also does training for this company. This is my first job so I understand earning your dues and getting experience. I would also have to drive my own car to certain job sites as well, which that gas money is coming out of my pocket. I’m not sure if this is a fair or not. Any advice would be appreciated.

4 Comments
2024/06/19
23:38 UTC

80

I quit my job

Know your worth. Don't let anyone take advantage of your hard work. Go somewhere where they acknowledge residential installers as human beings. You can't except someone to do 4 ton horizontal gas furnaces everyday in Texas heat. Offering $150 to work on Saturdays plus your hours sounded nice at first but it's not worth it. Just a quick rant about my job I just left

47 Comments
2024/06/19
23:32 UTC

14

Worst ive ever seen

23 Comments
2024/06/19
23:16 UTC

10

Milwaukee M12 users ALERT

If you use M12 platform, right now Home Depot has a 2.5, 5.0 high output batteries, and a charger for $99. That's less than a 5.0 by itself. $200 savings

1 Comment
2024/06/19
23:13 UTC

121

How I feel about ceiling cassette units

23 Comments
2024/06/19
22:45 UTC

4

Need Help

Can't figure this one out. New Lennox split system. Delta T is only 12. I have 58 degree supply air and 70 degree return air. Problem is space temperature is 74. I can't figure out why my return air is so low when the house is 74.

37 Comments
2024/06/19
21:52 UTC

6

When there's no plug on the roof and you're too lazy to run a cord downstairs

18 Comments
2024/06/19
21:27 UTC

0

Welp...Attic is 145F Degrees And I Need To Check Indoor Unit

my subcooling is right on the mark! not liking my other numbers :/ typical txv adventures

10 Comments
2024/06/19
21:26 UTC

1

Aptitude test

Applied to a local HVAC union, my aptitude test is next week. Aside from math and reading, I was told there will be spatial and mechanical questions. Any tips to study? Thank you

2 Comments
2024/06/19
21:19 UTC

0

Does this style of disconnect have an internal electric overload?

So on a call I went to today they said dining room wasn't cooling. Found the unit with the disconnect turned off. Manager wasn't aware of anyone going up to the roof in the past few days. So I was wondering if it could have tripped cause of high amperage or if someone had to turn it off manually.

5 Comments
2024/06/19
20:57 UTC

1

ECM TO PSC Motor Swap on 20SEER LENNOX

Have a ECM MOTOR MODULE that has failed on a 20 seer lennox communicating system. Is there ANYTHING that would stop a PSC motor replacement from working on this condensing Unit by tapping directly into the contactor and adding a run capacitor? Model Number XC20-048-230A01

2 Comments
2024/06/19
20:53 UTC

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