Customer went the cheap route and had a company install a universal motor when I told him it needs OEM. Universal works like 90% of the time. This was not one of those cases.

3 week old unit, report system not cooling and I open it up see oil on the bottom half of the TXV and look what we found...

Hey guys. Today was my very first day of working as an residential installer. I’m a helper and I’m trying to figure out why my body feels the way it does. I’m super green at all this but it’s been a fun first day and can’t wait for tmrw

I started my day at 0800 and spent until 11:30 just getting parts. First thing we did was install a brand new unit and I was sweating in places I didn’t know had sweat glands. Second job was putting in insulation. I was in charge of feeding the blower until we ran out. Afterwords was a third job checking some sort of thing to get it to turn on, I can’t remember the name of it.

I get home and I’m itching everywhere from the fiberglass and take a Cold shower like my dad said to (he’s done HVAC 40 Years) but I don’t think I got it all out cause I’m still itchy.

Anyway I’m laying in bed typing this and I can’t get comfortable. The inside of my body feels really warm and I’m EXAUSTED even tho I really only worked 4 hours. Can anyone tell me why I feel like this and grant some advice on how to fix for the upcoming days before the weekend?

TLDR; I’m tryna figure out why my body feels warm inside and why I can’t get comfortable or sleep even though I’m exhausted inside.

For those wondering why we did 3 jobs in 4 hours, I get paid per job, our company is all of 4 people.

Gonna be fun to fix the fins

Sorry not as quick as I thought - got locked in on the rant 😂😂

Huge storm swept by yesterday that was pretty intense. Lighting hit super close to my customers property - they get an error 91 on the thermostat for loss of communication. Okay perfect hopefully just a quick breaker reset.

Turn each breaker off waited 10-15 minutes, flipped the air handler breaker on first, then the condenser. No luck.

Tested VDC at the air handler 12vdc - excellent, behind the thermostat 12vdc - excellent, took low voltage apart outside and tested it and got 12 vdc - excellent, connected it back up and immediately loss 12vdc and nothing coming out of the control board. Perfect, quick and easy - let me order them a new board.

Part #: CNT06103
Condenser Model: 4TWZ0048A1000AA

Well, Trane decided they were gonna discontinue that part with no back up parts as of 07/23/2026. I called Trane, American Standard, look at online supply houses - even fucking eBay out of curiosity.

Absolutely none anywhere. Which left me having to give an estimate. Really shitty feeling knowing you’re trying but due to manufacturing decisions makes you just feel bad in a way.

Make a backup board, shit make a 24v harness so I can make it non communicating. Something to help this old couple out.

End of the day, I brought them a portable and provided them options. Come on Trane…

Trying calibrate the vanes on a 19xr retrofit.
Carrier is being their usual unhelpful selves.
Waiting on a password from the carrier smart service tech support and for a call from carrier tech support. Haven't dealt with these new panels yet. Any help?

Have a klein tech backpack. It was great until it ripped at the seams. Which veto bag would you recommend based on my daily tool layout? I like pockets and I do a lot of chiller work so I’ll occasionally add other tools when needed.

What the title says. Only these four, off two different branch boxes, won't cool, all others work. Through the service checker software I can try to force them into cool mode but they revert back to fan only within 10 seconds. No error codes. All other cassettes are working fine. Central controller doesn't even give an option to set temps for heating or cooling. Room controllers are Alerton, not Daikin BRCs. Could really use some help.