Trane & Carrier Package Units Not Cooling

I finally had a chance to look up what the large step down transformer was for. According to my book it was for the (460 volt units only) to power the draft motor. This system was a 208- 230v.😲 So I'm not sure why it had the transformer unless that motor only comes in 120 volt? Which would make sense so they only have to stock one motor? Like I've said in the past I don't know everything but I'm willing to share what I do.

Running those compressors without atleast putting the panel over the hole is not doing those compressors any favors. Your causing a high head pressure situation.

Good stuff as always. Im a residential tech and I’ve been watching your videos for a minute now. Definitely learned a lot.

Good job Rick.

Good day ser..i have trane package unit
Pcv.led1 are blingking led2 are not
Somthing problim to the system or it is okay...but the unit are working..

Wow 😍

All these HVAC video's are kinda funny. Every single video is some pro fixing the screw up some sort of hack installed or fixed. But all these horribly installed components and air handlers, condensers, evaporators are harder to buy than military grade weapons. If the manufacturers and distributers were so worried about their image and the public being safe then what kind of criteria do they have to determine who is "allowed" to make money off their products? Gold chains? A big fat jucy line of BS? At least 5 small claims court judgements against them? The ability to find and replace a clogged air filter?

When it comes to the Trane unit, you are suppose to use the test pins and run the system through test mode by causing a direct short between the 2 test pins with a alligator jumper...
Once the cycle switches to the test mode you want, at this point you are to remove the short...

1 fan
2 fan, energize economiser motor
3 fan and comp 1
4 fan, comp 1, and comp 2
5 fan, low heat
6 fan, high heat

The 24 volts on the side pins with screws are for emergency shut off..

There is no true # code, it's all about who and how they decided to use each pin and where jumper blades are installed on the right side of the unit.
Also Trane uses resistance/DC voltage thermostats

90% off the units I work on here in the Philippines are chilled water with FCUs. The other 10% are split type freon units. Package units aren't a thing here. Maybe because of our weather here. Average temp is 85° with 90% humidity. Ducted units would probably lose too much cooling and condensate like crazy.
Another great video Rick.

What brand of tool bag is that

Had a hurricane or something just after all them units were installed looks like.

Good repair video 👍

Rick u r the man !!!!!

I really like your tool bag.

Nice job

The small board converts 24 volt ac signal to the 0-10 dc signal.

Wow! That Trane units is really old!. That controller has been obsolete for a long time 😮. Unit should be replaced

Multiple attendance 🛠

Well done.

Great video! What what brand/model is your tool bag?

You can put those thing in test mode by using the test pins.

👍👍👍

Great job !!

Great video!

Can you smelllllllll .....what ...the... electrical...is...cooking !!!

This field requires so much patience!!! Hahaha

Tranes has the worst wire diagrams

Fast paced no cool call, hope the customer got money back from last company

Good vid Slick Rick ... I always liked troubleshooting ...

I believe those units have a binary EMR stop input at the LV terminal board for smoke etc... (If not used there should be a jumper across the terminals, generally #5 & #6 If memory serves)

Great video Rick!

Good one Rick , those Trane’s will drive you crazy sometimes

You and big Clive blow my mind with your raw knowledge.

I do a lot of work on Tranes. 16&17 is where that fire alarm should be wired to, it’s the e-stop. The large transformer is for heat. They’re good units. Good finds though bud.

slick rick good job buddy. always enjoy your material

I believe those transformers have something to do with the heat

too much voltage drop going clear to the fire panel and back to break the whole transformer secondary, unless you add a relay/contactor to take the load.
the indoor blower feeding/spreading fire is the main issue and very first thing F.D. does upon arrival is cut power to building and it stays off long term anyway :)

those resistors are directly below the thermostat plug also, and judging by corrosion on the terminal board, it may be an issue also(or someone shorted t-stat or batteries leaked in causing a short)

glad to see you check between all phases and to ground also! so many miss that and jump past, but when it's 480y/277v it hurts/kills far easier or playing in puddles/raining, etc.
better safe than sorry :)))
says the guy who's wired "live" for 25+ years, I used to zap myself every few days if not thrice a day (120v residential) got hole of 277V once, it helped the current flow more and I'm good ;)

needs "noalox"/antioxidant compund on everything :)

Trane always aggravates me with their number system!! Idk why they can’t just keep it simple stupid! Great job rick!

Thanks Rick!! Awesome work!! You might could check with Ted at Anti-DIY cause he seems to be like the Trane God... LMAO. But yes usually yellow is cooling circuit that should also include a high pressure and low pressure switch. Like you didn’t already know that...

#25 thumbs up

Nice job Rick! Thanks for sharing that with us! Question: Do you ever use dielectric grease on those connection blocks and contactors, especially where you have dissimilar metals?

spark came from the contactor

Thanks Rick!

FIRST!!! Why am I still awake!?!