Tech Support Told Me They Almost Never Go Bad!

[@robertrunyon5984]

That thing was flashing like a Christmas tree.. My experience with tech support is i never get someone that knows anything and does not speak english. Good work Curtis.

[@clintgray1623]

The inside units have a very small screen before the EEV that can stop up causing low pressure . Highly recommend using nitrogen purge for all brazing,

[@greatbiggiesize3644]

29:04 looks like your Green Screening the view out the back of your van, LOL

[@DanO181919]

At the end of this video you apologized for it being to long…. On the contrary, I rather enjoy the longer videos! Nice work, I’ve never had the privilege of working on a EEV before.

[@HVACGUY]

Thanks 👍

[@danobrien3109]

You let him off light Curtis . I’ll assume the board was warranty. But he should realize that your time is important and valuable, but more importantly your knowledge and skill are what he is paying for. There are some people that will piss and moan regardless of the cost. Great job brother👍👍🇨🇦

[@panamacitybeachbum]

I learned that if the person on the phone was truly an expert, that person would be working in the field making the big bucks. I've seen EXV on Carrier chillers fail numerous times. I went to Carrier Chiller School in Orlando years ago and their expert instructors would not have qualified as competent field technicians, at all.

[@thephantom1492]

My split unit had it's electronic expention valve fail. They can easilly jam...

[@whizzo55]

Dang! That was a job and a half but you pulled it off. You are a credit to your profession.

[@PhilipNation-xm5lh]

I have a difficult time putting a price to these repairs. I constantly forget about my nitrogen, 15% silver brazing rods, etc. which all add up. It's hard to give the customer a total without wincing. Times are tough and people are hurting. I guess the saving grace is that I know that the job is done right and worth the money. Nice job Curtis!

[@jthonn]

I agree Phillip, giving a little break here and there is good business, but you have to make money to survive.

[@raygunsforronnie847]

Consider what the auto shops do: charge a "consumables fee." For them it covers parts cleaning solvents, rust and corrosion penetrants, shop towels, reassembly lubricants, etc. For an HVAC tech, it would be nitrogen and brazing gases, incremental use of devices with limited life spans (leak detector elements, for ex), brazing rods, zip ties, heat compounds, sheet metal screws... anything you find yourself buying that isn't charged directly to a job is a candidate. Consider something like "cost accounting for dummies" to help you find where your money goes out, so you can find ethical ways to recover those expenses.

[@jthonn]

You don't really have to charge an extra fee for that if you make it up in the initial pricing. It saves the argument of the customer saying, "what is this charge for". There is the cost of doing business.@@raygunsforronnie847

[@davidca96]

I wonder why they design these with so many circuit boards outside, thats always seemed like a bad idea to me. The boards should be on the inside unit and the signal/electrical wiring could just be ran out to the unit, keeping all that stuff protected but im not an expert.

[@opsman270]

45 ohms from common to one coil 95 ohms across both

[@rcinfla9017]

You mentioned (10:46) you measured one of stepper motor winding open. Likely just a stepper coil replacement but sometimes the PCB board stepper motor driver can short out continuously pushing current through stepper motor coil burning it out. That is why tech support recommends changing PCB along with EEV coil. If PCB board driver is shorted, by the time you figure out it is still not working with new stepper coil it will have likely burned out the new stepper motor coil.

[@jasonostrowski3972]

“Not happy about the bill”? People don’t understand Freon ain’t free and quality service isn’t found just everywhere. I am learning this daily the more I work for the public. Thanks for the content

[@HVACGUY]

Anytime

[@fshn76]

Good stuff Curtis! I really enjoyed this one. You weren’t kidding about it being over engineered!

[@donnyjackson1908]

I had 3 trips out on one of these XV18 actually with Similar issues. Ended up being a couple pounds low on refrigerant. These newer tranes do some wonky things when they get low. Evaps leak pretty often on the TAM Airhandlers

[@luissalas9270]

Great job on this!!! A lot of work

[@HVACGUY]

Thank you!

[@stephenbullock-yn3vh]

Great work curtis the exv is a stepper motor that moves a pintal shaft open and close

[@stevencossaboon3237]

Nice work Curtis. You've got to love tech support.

[@miker252]

I had nearly the same problem on a 180 ton McQuay magnetic bearing chiller about ten years ago. It was locking out on low suction and had a sight glass at the EXV. I told my supervisor that the valve wasn't opening and, being still under warranty, the contractor sent a factory authorized service tech. He hooked up his laptop and spent hours on the phone with the factory before declaring it probably need a new actuator. He said they never go bad. So, it took two days before the facility, with about 500 occupants, in 100 degree weather, to get the part and five minutes to fix it.

[@HVACGUY]

Dang

[@acrservicesmathewr7565]

The coil temp sensors record superheat and subcool so if eev is not responding or open to much, it will shut down. Always start with your thermistors

[@HVACingMyWay]

It is extremely rare for one of those to be bad. Great video

[@MariosACandRefrigeration]

It would be a good idea to weigh the charge you pull out.low suction.thanks for posting.

[@HVACGUY]

Great idea

[@christophertuell2295]

CPS makes a solenoid magnet you can use to test if it’s the valve or the stepper that’s messing up. You can also leave it on the valve to provide temporary operation if it’s the stepper, they always seem to be back ordered in my neck of the woods

[@AllTattedUp13]

Amazon has them

[@jw3843]

I have replaced a few of the motors for those, I have never had to replace the valve itself. Just like the newer motors, it is usually the high-tech parts that fail. But as usual, there are times that the valve itself will fail.

[@robalexander7348]

Well done Curtis, a complicated fault rectified carefully by yourself 👍 Au

[@HVACGUY]

Thanks 👍

[@harrydickson4575]

Nice job 👍👍👍

[@HVACGUY]

Thanks 👍

[@georgemunford3804]

One tip Put a ground wire on the appropriate screw on the board If you look at the back of board you will see which screw is a ground to the cabinet Sometimes a wire is better

[@josefj1776]

I have a Rheem package unit in that we have put 3 factory X13 blower motors in it and it does not work. We have a x13 Evergreen in it working but the factory motors don't work. Tech support says they don't know what to do. I have low voltage and high voltage.

[@AllTattedUp13]

Hmmm..makes me glad we got barely any heatpumps out in the chicago land area 😂

[@MariosACandRefrigeration]

9 flash,there is normally 0 superheat at evap. in heat it becomes the condenser.

[@jaycrypto-ns7vs]

you can ohm out a stepping motor. also if one is malfunctioning when you see the pressure that is close once you start up you can pop it off and it should stay fixed. if not def eev. can temp split eev as well.

[@HVACGUY]

Good tip. I did ohm out the coils on the motor coil. And one was open. So, I was hopeful that just replacing the coil would help, but it didn’t make a difference.

[@jaycrypto-ns7vs]

@@HVACGUY Love your vids im a tech about the same age in myrtle beach. remember what you can from working on tranes because once you start seeing the rheem and other high efficiency they give you no info to trouble shoot.

[@georgemunford3804]

If you think that was flashing like a Christmas tree open up the matching airhandler which is probably a model TAM 7,8 OR 9. Two boards side by side with a blue green and red all flashing like crazy and your supposed to distinguish one flash per second or two per second . My brain and eyes don't work like that

[@j.r.branch1681]

Have u worked on any Trane symbio systems it took place of the Relitale.

[@JohnstonPettigrew]

In the end, the customer scored.....it got fixed (and it was a real odd one).

[@gabrielstern4992]

Amazing how tech support guys seem to be focused on boards and computer chips when things like valves stuck can be the actaul culprit that's like saying to use car language it's impossible for an air tempeture sensor to go bad or an oxygen sensor. And curtis I noticed as soon as you replaced electronic expansion valve and started the Condenser back up. How much quieter the compressor got before it sounded horrible. With an annoying buzz. And also I noticed once you started the charge and got it close how much condensation surged out of the drain line from the air handler. Again a fine example of an actaul hvac person who actually works on the equipment might know more than the 10 dollar an hour tech guy who just sits behind a desk with a computer with no knowledge except a spec sheet. Sometimes it really is as simple as the light bulb went bad.

[@key-sendo]

to be fair I have never seen an eev like that go bad. I have however, seen those trane temp sensors go bad several times. So it isn't unusual for them to want you to try the easy stuff first, but still they need to realize that it is not impossible for an eev to go bad.

[@Balticblue93]

Stop using those Appion hoses and use the dual Trublu hoses and it will pull way deeper. That Fieldpiece will rip it down or you are doing something wrong. You might have to do it a second time, but you should be able to get under 200 in no time. There is no reason you can't get that low. I don't have these problems, but I also don't know what condition your vacuum oil is and which brand you use. They do make a difference in moisture level and how effective they are.

[@Bryr2112]

depending on the amount a wires you usually go from the first wire to all the other ones. The resistance should all be the same, if not then the eev coil is no good. they sell special magnets that u can put on the eev to manually open them to.

[@woodystokes1543]

Nice 👍🏼 😊

[@AustinTaylor-b1o]

Curtis, would a Solenoid Service Magnet not have worked to test that?

[@HVACGUY]

No. On these the magnetism rotates in little triangles to slowly turn a magnetized screw inside. They call it a stepper motor. And those test magnets are just circular magnets. Wouldn’t work

[@AustinTaylor-b1o]

@@HVACGUY That explains it. Thank you.

[@JesseDoesHVAC]

Have you ever had an EEV fix by cleaning it? I would have thought it wouldn’t make a difference as they are essentially a magnet?

[@HVACGUY]

No. But, it’s worth trying

[@JesseDoesHVAC]

@@HVACGUY agreed. Here in Australia 🇦🇺 we deal predominantly with inverter heat pump units, they do make a world of pain to diagnose but most of the tech support for the major brands are pretty easy to deal with and a lot of the troubleshooting can be done over the phone whilst on site

[@AaronPowellvox]

The only thing I don’t like about the streamline fittings is they only have a 10 year warranty compared to a 15 year warranty with the RLS fittings. That’s a big difference.

[@scottmaz4063]

#1 hello Curtis

[@HVACGUY]

Hello

[@NoorRefrigerationsystem]

❤

[@DennisDuffy-n8g]

Who’s paying for all this labor? I hear the new trane units are even more complicated geez 😮

[@jthonn]

You have to do what it takes to get the fix. Three hours was more than fair, tech support messed you up too. You have to charge enough to make a profit to stay in business. I use to really like Trane and american standard, but after seeing this, I don't know anymore. I'm not a fan of heat pumps to start with, even though they seem a little better now days. Watching all the different repairs you do, it seems that the Reem units are some of the good ones. The dang engineers are doing things that make no sense at all to me. They need to take these engineers out in the field to work with you guys a year or two before they get their cushy jobs.

[@craigbraswell4269]

I used to like a few brands, before the EPA and seer ratings of 14 became standard. Seems like nobody makes a "great" quality unit these days... its a good thing manufacturers give 10 year part warranties with their equipment because you're gonna need it.

[@raygunsforronnie847]

It's not the engineers who need to be out in the field, it's the accountants and upper management. Remember that companies are in business to make money; in this case they build HVAC equipment to make money. Engineers already know how to make things last, how to make them easily serviced, and then the sharp pencil of death is applied.

[@jthonn]

Yeah I think you're right@@raygunsforronnie847

[@jthonn]

It's a dang shame, and 10 years go by faster than you think. Some companies in my area warranty parts and labor for 12 years. I guess they make deals with the manufacturer. I'm sure some of these techs on here can shine some light on that.@@craigbraswell4269

[@JoJoTavern]

Everything that is mechanical has a set time on it even the human body

[@kens.3729]

Tech Support Rep that Told you that Nonsense also Works Part-time in Marketing Dept.. 🤪👎 Failures are Great for Parts Business. Ask Goodman. 🤪👎

[@AllTattedUp13]

At least goodmans aren't over engineered like tranes tho 😂

[@ben4061]

How’s that NAVAC core removal tool

[@HVACGUY]

I liked it. It has a removable piece on the end for , what is it for mini splits, 5/16. So, it works for both.

[@JesseDoesHVAC]

Two flash on the green said EEV control board internal failure

[@Shawn_RHVAC]

lol. These things go bad constantly. Lol

[@christophertuell2295]

Flow nitrogen 😂

[@owenaero]

that IPA sure lets you know where your cuts are don't it

[@karellodewijks4971]

👍👍😊😊

[@tedhicks5431]

I bet when you first started up nd low pressure took it out bet you said oh crap

[@joedavidzuniga1993]

😊😊🎉🎉🎉

[@vincentgelles3805]

I don’t get why a tech would ever use a press fitting. I think you’re a great tech Curtis and you do excellent work but I will never be on board with these garbage press fittings. I’ve been brazing for over 20 years and I trust my welds 100 percent. I can’t say the same about an o-ring. It doesn’t take much time or effort to set up a nitrogen tank and flow it while brazing. In fact you still had to flow it and use your torch to remove the valve and braze a couple of the joints. If you still have to get the nitrogen and your torch off the truck, how much time was really saved? Not to mention the outrageous price of the tool and the fittings. Brazing is a skill and I really enjoy it. I will never use a press fitting but to each his own.

[@demieyez6508]

Your eardrums ok?? At one point all I heard was the music

[@Paulie1232]

It's an American Standard, everything breaks...😅

[@AllTattedUp13]

Not nearly as much as carrier breaks down 😂

[@fernandobazan829]

Ur a genius but that american standard is a POS WHY ON EARTH do they make this so complicated it’s a simple process these engineers are crazy adding all these gizmos for efficiency but in the long run they breakdown more than there efficient so where is the savings it all poppycock and bull