AC Noisy Not Cooling Iced Up Compressor and Eval coil

[@generalwrex]

Some people just don't understand that everyone has their own methods to troubleshoot, what this guy does works for him, the way you do it works for you.

[@TOMSIGHT-e6l]

Fen Baker hi! lots of possibilities why it is icing maybe belt, dirty evaporators, stock-up magnetic relay, overcharging,,,

[@thehvachacker]

it had no airflow

[@azairman1]

Next time pull the terminal plug off at the compressor. Save you ten minutes and safer

[@robertferrell6174]

I worked at the plant in lynn haven florida that put together this units for 8 years. This video brings back memorys of putting these units together. Remember though there only put together in the usa. Parts made over seas.

[@clcervo]

I know this isn’t what you were making this video for, but I have to tell you that you have absolutely made my autistic son’s day! He loves watching this video, somehow your voice just calms him right down, especially during this pandemic when his whole routine, and therefore his world, is turned upside down. Thank you, and thanks for making him smile! 🙏🏼

[@picturemetrollin2093]

clcervo isn’t it strange what they like? lol my daughter is autistic and likes to watch mine craft videos. She’s never even played mine craft! Now she is watching car crash videos because I was trying to get her to wear her seat belt, not sure I like that but what do you do? lol

[@pittysnstreetkittys]

This sounds just like my AC unit where I live. My landlord won’t fix it I am trying to fix it myself. It keeps freezing up after being on couple minutes. One of the landlords workers tampered with it in the past and may have done something to it. Thank you for sharing video.

[@RexyPlaze]

New to HVAC and this was very informative keep doing you!

[@thehvachacker]

It’s an interesting trade where everyone in it is learning everyday. Why experience is so important to gain.

[@maukamaki]

From a contractor, you diagnose and do! I like it!

[@chrisao1987]

Good job man I was screaming at the screen saying check another speed lol which you finally did. Your a good thorough tech. Their are a lot of rushers out there which sucks. keep up the good work.

[@thehvachacker]

Too many rushers out here and employers no longer car of their callbacks. For many its become a numbers game. Also pride of workmanship is slipping for commission.

[@jeremyortiz6019]

I I cannot believe how many people are making comments on how to do The job is simple people next time go and fix it yourselves and if you don’t like the videos you don’t have to watch them I did enjoy the video I could’ve done things different but it’s not my job to tell someone else how they wanna do their job or the steps they want to take stop hating he’s doing a good job

[@vincentlee4351]

These guys are idiots.

[@davekay8899]

Nice to know I’m not the only person who talks to themself like this when I’m working.

[@thehvachacker]

It’s what made me decide to start recording. We have to keep ourself amused working in terrible conditions

[@eraldfaja1387]

🤣🤣👍

[@justinbyers1725]

I talk to myself as well when I treat substations for weeds. Its always fun when the lineman show up and your like I wonder if they heard me LOL

[@fabianodasilva]

My comrade says that beautiful work I like to watch your videos I am Brazilian from the city of Rio de Janeiro I am a mechanical technician and also I like to see your videos an apr

[@emorris272]

That's right. Erasing history is bound to repeat it!

[@renecuevas4128]

I m 30 yrs in this business,,but love the way you face ur svc Call,,,,,,,

[@thehvachacker]

Thanks I enjoy fixing units

[@gregmercil3968]

You work kinda like I do, by having a sense of humor through the whole thing. 😁

[@thehvachacker]

Gotta make the best of being stuck working late on a friday. Melting away working on an RTU

[@renecuevas4128]

Like ur attitude. Wish all Serv Techs were like it😃

[@thehvachacker]

I enjoy fixing stuff and figuring out how and what makes it work.

[@southtxhoghunter2]

FYI on the X13 motors you can get just the module and save yourself time and the customer money. Most of the modules have two 1/4 inch screws and a simple plug verses changing out the whole motor module from the blower assembly.

[@thehvachacker]

Yes, Lennox sends them in two pieces yet we make sure to replace both parts. Less chance of call back from the motor being responsible for the alien-looking resister that cooks

[@corstiaandewaard6029]

Good job...armchair know it all are all air no action...thumbs up...

[@louprentz8554]

I LOVE GOING ON SERVICE CALLS WITH YOU. I DON'T HAVE TO CLIMB LADDERS AND CARRY 500 POUNDS OF TOOL UP ON A ROOF. I DON'T GET DIRTY, SHOCKED, BURNT, OR CUT. DON'T SMALL BURNT FREON OR REFER OIL. DON'T EVEN HAVE TO DRIVE TO THE CALL. THIS IS GREAT FOR A RETIRED TECH.

[@Trytotakem]

It's easier to just pull the y signal & let g bring the blower on. With the 16 pin icm motors if you jump the 1 & 3 pins to common & the 12 & 15 to 24v hot. It will test the board. It will make it run at 75%. But it's usually the module bad. Motor is usually fine.

[@Trytotakem]

May not be the 16 pin motor. Can't really see it on my phone.

[@AN-Saudi_Arabia]

Good job my friend and (high temperature) greetings from Saudi Arabia 😄👍👍

[@thehvachacker]

Thanks my friend stay safe in the heat

[@chrissipple1018]

It looks like the return air is too small. and when you get fluffy ice on the evaporator coil it"s usually is a sign that the system is running way to cold. the reason I say that is the moisture in the air doe's not have time to condense into water and starts to freeze..If you have clear ice that is a sign that the water is condensing but is still too cold. And that compressor is a Copeland compressor just painted a different color. It uses to be if you peel the sticker off the Trane compressor it would have a Copeland tag.

[@Channel-cm7yc]

Lmao... man I love the humor. Yeah it’s that magic cooling thing so let’s just let it run until it kills itself attitude. 😂😂

[@thehvachacker]

Somehow it will just start working again even though it sounded bad inside the space it was no longer cooling. I could of shut it down I will be back sometime tomorrow to teach them to shut it down next time it doesn’t work

[@Tiger_Slot66outlook]

Man, you a pro. and forget to retighten the crews. Hope you still alive.

[@thehvachacker]

Explain how did I forget to retighten the screws?

[@Tiger_Slot66outlook]

@@thehvachackerHacker the wires to the Fan.

[@thehvachacker]

The fan wires went back on. How else did I test the ac in this video?

[@patocs100]

Muy buenos vídeos, nuevo suscriptor from Argentina. Nice work!!

[@carlospulpo4205]

When you experience repeated crashing , try double tapping the home button to bring up the running apps. Swipe up on the ones that are taking measurements or all of them. Then restart the app. By force closing the app that you had taking measurements previously, you will cause it to "release" the connection to the Bluetooth tools. The crash appears to happen when the second application attempts to make a "second connection" shortly after you select your "tools". I don't work in HVAC so I am not familiar with the tools or the apps, just a hunch.

[@thehvachacker]

It was doing it today for a bit also, had everything closed and restarted tablet. They might be working on something that's knocking the system down at times.

[@bairfamilyfarm1336]

You're not an hvac tech, but sounds like you could take up repairing computers! With the way computers are today, if you know software, fixing hardware shouldn't be too hard. When I started fixing computers I had to desolder and solder in new components. Everything is toss and replace boards/parts now.

[@padilla7019]

@@thehvachacker what app were you using?

[@jeffgrant6914]

Major ice machine good video

[@thehvachacker]

Second really iced up machine I ran into. Not as bad as the one in the txv video yet a couple more days and this one could of been worse.

[@genuineimpulse9134]

Could you have looked in one of the other identical units to see if they still had their wiring diagram?

[@truthsmiles]

Thanks for another interesting upload!

[@thehvachacker]

This is unedited I kept everything I recorded

[@truthsmiles]

The HVAC Hacker - I loved every minute! Couple quick questions: 1) Will you explain to us in the next video what you learn about checking subcooling before the condenser? That was weird.. 2) Do you just leave the holes you drilled for the temp probes? Or will you cover them? If so, what do you use? Thanks again - I clicked the moment I got the notification! :) My new favorite TV show!

[@85sprint]

I've noticed instead of changing modules witch solves the problem, I'd change the speed as well. So long as the customer doesn't mind. Good to know it's a common thing done.

[@thehvachacker]

That was temp till I returned with modules and motor. Too many times I replace a modules and have the motor take out the new one

[@Sunrise_HVAC]

selfDistruct i have done that as well but sometimes it does not always work.

[@AkA-me-Kenny2]

Is the other unit/units there the same, and if so, would they have a schematic, that you could have referenced?

[@thehvachacker]

No this is the only Trane on the roof. I was able to trace out the wires. It just takes longer

[@scottgrigsby4210]

these units sometimes do not have a low pressure switch, they have a loss of charge switch. and also these units are famous for leaks in the coils, Its hard to stop a Trane, my motto is its Harder to get them going again,

[@Eddy63]

Well you got the ole Trane back on the rails ... Lol ... Good vid Hackster ...

[@thehvachacker]

Yes running for now until I get back with new motor or cap

[@throttlebottle5906]

hehe, @ 4:36, also check each leg to ground/case or neutral. nothing like finding one leg of disconnect bypassed and Mr.120v bzzztt

[@sknight0391]

Those Double D's are pretty shocking ⚡⚡⚡⚡

[@williegillie5712]

Is there bad airflow? Or is the charge a little low?

[@thehvachacker]

Bad airflow the blower speed coil for tap 1 stopped working and they left the air on. So once air flow stops superheat drops. Evap coil starts icing and suction pipe goes below freezing. It just keeps freezing up until shit off and thawed out like the old freezers. I was able to get a different motor speed to work yet ordered a new motor

[@williegillie5712]

Makes sense no air flow your just making ice

[@guitarstitch]

It's like watching Linda Belcher from Bob's Burgers, complete with random musical numbers!

[@johnw6648]

im watching this fella talk about how the schematic is missing and im thinking: that other AC unit in the background has one in it. go get it

[@thehvachacker]

No this is the only trane on the roof

[@samiam7125]

enjoy your feed I learn ever time thanks

[@dirtysouthoffroad6402]

Subd just for the history comment, it’s better to learn from others mistakes then to repeat it. I’m watching your channel to try and figure out some home issues I’m having, very informative and your audience is hilarious.

[@thehvachacker]

Experience is built on our mistakes. We always learn more from what didn’t work than all our successes. The comment section is interesting many good people here

[@geraldschilli8870]

It’s times like this is when a unit being a heat pump would be definite advantage; easy to defrost.

[@sp7864]

The system is iced over. What is your purpose of removing the compressor wires from the contactor? You say the contactor is being replaced, are the contacts burned closed, keeping it running constantly? Or are you just making unnecessary steps? Your first step to determine why the system is iced up should be to remove or check a control wire from the contactor coil to see if you

[@rudskyful]

why am i watching this when i dont even have AC xDDD

[@bairfamilyfarm1336]

Famous words of Bill the fire Marshal, "LET ME SHOW YOU SOMETHING!!!!". I'll be back after work to finish the video.

[@thehvachacker]

what ever happened to that window unit?

[@bairfamilyfarm1336]

@@thehvachacker Now that I found my comment finally. Your reply wasn't in my notifications for some reason. It's still got r134a in it. It cools fine as long as outdoor temp and humidity stay low. I plan on putting r410 back in it once I can do so. I don't have any on me, I will be starting at an hvac company in a couple weeks, I will be purchasing the freon through them to put in it.

[@geraldschilli8870]

If there is another unit there of the same type as the frozen unit, there might be a wiring diagram in it.

[@thehvachacker]

Only train up on this roof.

[@Elisummit845]

You keep saying that you are not trusting your head pressure because it's before the condenser coil. Isn't sat' psig the same no matter where you check it before or after the coil? Your pipe temperature will be different of course but not your sat'.

[@joshuapoche5137]

Discharge line temp is higher then liquid line temp. You cant get a subcool using discharge line pressure and liquid line temp you need liquid line pressure.

[@Elisummit845]

@@joshuapoche5137 discharge pressure I have heard is hgher then liquid pressure (I'm saying pressure not line temp). I was of the assumption that whatever the pressure on the hi side is, is the same from when it comes out of the compressor but I have heard there is a drop in pressure in the condenser. Is that true only in some units?

[@waynemiles7027]

eli you are right, the pressure is the same coming out of the compressor as it is coming out of the condenser, it’s the sat. temp that changes.Sat temp is high(superheated) on discharge of comp and lower (subcooled) coming out of condenser.

[@gpowerdragon9852]

It Would Be Fun if it started snowing in the boring Office Because of this penguin goodness

[@thehvachacker]

I wish it would snow and bring back heating service calls I miss boiler work

[@throttlebottle5906]

looked to me like the 24v common was connected to the case/ground directly or something is shorting it to ground directly when you was testing the 24 and going from the blower relay to case, making it not read right or zero on the one side. best practice for low voltage testing is always going from both the transformer common and 24v terminals to the components being tested and forget about to case/ground unless you're looking for a short, it may or may not have the common bonded to case. testing from both transformer terminals to case would show if it's bonded or shorted. the low voltage "common" was also on one end of the plug with the line voltage to ECM motor, which is why there was only a single other low voltage to speed tap terminals. I have an advantage in electrical/electronics area and can quickly figure that unit without schematics, but boy are they nice to have, more so when you cannot easily trace the wiring! so I'm not yelling you're doing it wrong =p

[@thehvachacker]

Yes checking both sides is best or sometimes a ghost voltage may be present

[@geraldschilli8870]

What’s with the lack of drain line. Draining right out on to the roof is a no-no.

[@thehvachacker]

Not against code in nj. It’s how most are set up. Yes it’s not great for the roof

[@scottgrigsby4210]

I have done hundreds of calls like this, This is my 30th year as a service Tech in the Phoenix area, to bad its not a heat pump, just put it in heat and defrost it as long as the blower is operational.

[@charlotteprescott-ruland9121]

My usual AC man sent his 22 year old son to our house to fix our AC. We were told by dad that the coils needed to be replaced (we stupidly left the front AC on while working on this house 2 years ago, so I understand it was probably paint and saw dust...our bad). We paid him 300 bucks (under warranty) to do the job, then he sends his kid to replace them. The kid appeared knowledgeable, but the very next day we still had no AC in the front part of the house (we have 2 units, large house). So, he comes again and says we have a leak. He fixes the leak and then mentions some wires were not properly done...and he "fixed them." Claimed our electric bill should be less since "blah, blah, blah" will work properly now. He also mentioned there was a "hi and low" setting and that ours were on low. He asked if I wanted them high (we live in Florida), so of course I was like, "hell yeah, turn those babies up!" Here we are a week later and the front unit inside the house and outside are frozen up!!! Could the fact that he turned them up to hi be why this happened? If so, he needs to come and turn the other unit down to low before that bad boy freezes up. I will not live in my house without AC...not even an option! We have a window unit, but it only covers 1800 or so sq. ft. of this house. Not acceptable to me for longer than a day or two. What do you think? TIA

[@TheMaster5150]

Air speed for AC is supposed to be on high, and low speed is for heat. I would get somebody else to look at your unit or if you have 2 units. There is a lot different issues that could cause that affect; dampening, registers, ducting, coils, restrictions, low on charge, dirty filters etc.

[@charlotteprescott-ruland9121]

@@TheMaster5150 He told me on the phone that he thinks it's the copper pipes, as his son said he had to fix a leak...soooo, of course that's another 495 for a 2-year-old AC unit. Great!

[@charlotteprescott-ruland9121]

@@TheMaster5150 Oh, and thank you for the reply ;)

[@jth1699]

You need to tell the dad to get out and fix your ac - the kid knows nothing and his dad is using your system as a school for him and charging you for an experienced tech...

[@jlowilbur6505]

I’m scratching my eyes out listening to this troubleshooting process😢

[@11dayzjourney]

How did you change the fan speed on the blower motor to get it up and running

[@movietime111]

How long can these 20kw kohlers run continuously? Manual says stop every 8 hours or 24 hours and check oil and allow unit to cool. We're on Florida, doesn't make sense to expect customer to do this...

[@thehvachacker]

Yes it makes perfect sense. Even more for you in florida then up here in New Jersey since it’s hotter down there. The generator runs at 3600 rpms non stop. So it burns oil as it runs. I have seen the low oil cut off fail and not shut down a Kohler seizing the engine. Oil is critical for any engine.i tell my customers at least once a day. When your living on it. I feel the 8 hours in the book is an overkill, you will need to add a line or two on the side of the bottle most likely once a day

[@movietime111]

@@thehvachacker You put line on bottle to see how much its burning?

[@thehvachacker]

Their is an oil dipstick just like on a car. Pull it out and check the oil level. When it’s new oil it’s hard to see on the dip stick. Yet you also don’t want to overfill or you can make the air filter soaked with oil. Then no oxygen for the generator to operate.

[@TOMSIGHT-e6l]

Hi friend I’m your new subscriber from ksa...👍🏼🇸🇦🇵🇭

[@thehvachacker]

Hi friend hope your enjoying the vids

[@GatheringSticks]

At least this roof top is neat and tidy. So many roof tops are trash heaps.

[@sp7864]

And upon further watching your video I see a low pressure control on your suction line. If it is working and wired in properly it would prevent any icing up due to low refrigerant charge SO that would mean the contactor is stuck closed allowing the compressor to run constantly even without the blower running which would then make the system ice up due to no air passing through the evaporator coil. THAT would make the system ice up in this manner. Thus, you would examine the points of the contactor and it should show they are burned shut.

[@thehvachacker]

It was the blower motor. The speed tap on the motor wasn't working. I switched motor speeds and it started working

[@thehvachacker]

Another thing, I am not claiming to be perfect or the best HVAC tech. I am sharing some of my experiences. Also some video good helpful tips on interesting calls. Yet I don’t believe I added refrigerant to this system. Only replaced blower and contactor

[@renecuevas4128]

ECM blower????????

[@throttlebottle5906]

when I heard it, I thought frozen solid, then I seen it was a newer "trane" and auto-assumed dead ECM......... now I'll finish watching to see lol

[@chrissipple1018]

Who in the hell would install a single pole contractor on a commercial unit.

[@rayvoorhies7180]

Do you carry a heat gun in your truck? Use Alligator clips to tap power from the HVAC Unit. It would melt that block of ice for you.

[@thehvachacker]

I have a cheater cord that I can power up tools off the disconnect yet don't carry a heat gun. The warm outside air will melt it down, if it won't melt fast enough I usually leave and either return later in the day or the next day

[@thehvachacker]

It’s too much effort, why if it’s over a furnace I turn the heat on or heat open the back and let it pull the hot outside air through. I done the heat gun thing and torch. I know it doesn’t sound good but a frozen system could be avoided if the customer just turns it off since it isn’t cooling. On the residential side if a system of frozen we are suppose to leave and move on to the next system. Ray does your generator have the fuel plenum? I never had a chance too look up your genset

[@rayvoorhies7180]

@@thehvachacker I'm not sure if my Generator has the plenum. I'm due for maintenance anyhow. I'll ask the tech when he's here servicing the unit.

[@mujeeb7100]

I love your tools , if i have those one in india i could trouble shoot major breakdown even more quicker. If possible can you list me out your tools you use.

[@albertastorms]

I noticed there is no control board in there! Is it in another compartment?

[@thehvachacker]

No this one does t have a relia tel board in it. Lot of these style units they are mounted by the blower.

[@louprentz8554]

I LOVE GOING ON SERVICE CALLS WITH YOU. I DON'T HAVE TO CLIMB LADDERS AND CARRY 500 POUNDS OF TOOLS UP ON A ROOF. I DON'T GET DIRTY, SHOCKED, BURNT, OR CUT. DON'T SMELL BURNT FREON OR REFER OIL. DON'T EVEN HAVE TO DRIVE TO THE CALL. THIS IS GREAT FOR A RETIRED TECH. I WANT TO SEE YOU WORK ON AN 0MNITEMP RACK. HOW ABOUT STRUGGLING THROUGH A 50 TON CARRIER ME50 UNIT

[@tptm100]

Was there any issue with the LP shutoff?

[@TheRAULNUNEZ]

I did your steps and paused the video after each step and I got electrocuted after I put my tung on the piece you said to ⚡🤭✨💤

[@ErickHernandez93]

Bro i got 2 fieldpiece wireless, how good do the gauges hold with 410A? I was told it blows the seals out of them, has it happened to u yet? I only use them on coolers mostly

[@MrDmadness]

not to be dick, but ive seen a few of your videos and have wondered why you dont carry a non contact voltage tester ? easier to do a quick test and they only cost $20 just generally curious why you dont use one ( I do realize that confirmation with a contact tester is a better way to be sure and to know your voltages.

[@thehvachacker]

I never had a contact tester I trusted. I owned several yet they didn’t last. I feel more comfortable seeing the voltage I’m testing for. Everyone has their ways of troubleshooting or testing.

[@MrDmadness]

@@thehvachacker I hear ya, its a good thing to carry for quick checks. been at this for almost 27 years and youre right, there are a few different ways to achieve the result.

[@samuellafrance2875]

He should check the poles to the ground instead of checking between both poles if they were on the same phase there would be no voltage between both poles. Not complaining just a tip ! ;)

[@johnk5503]

I've have volt sticks lie to me ... I'll never use one again

[@christophermiller1520]

I’ve had split systems frozen from evap all the way to compressor cause they thought turning it to 60 would make it work when it couldn’t drop temp no matter what they’re so stupid. I love making snowballs

[@stueygreenberg8989]

Looks like that is a cooling only RTU. If there was heat, Id defrost it that way. Just put a piece of sheet metal to extend the pan if you can get it in there, or put a panel over the supply drop. Dont even see electric strips. Better invest in a heat gun lol. Even with the blower on continuous itll take all day to defrost that iceberg completely.

[@tr9036]

Temp difference is 15 16 degree because blower motor is running at higher speed than before.

[@11dayzjourney]

How did he change the fan speed ??

[@tr9036]

@@11dayzjourney He has changed the coil/stator cables. Motor has one common line and 3 different coils for different rpm value for each. Example, black cable is common, blue is low, grey mid, red high speed. Current coil / stator line işe broken and he has changed the connection to higher speed one.

[@patrickguillory3914]

Can you run water over that ice???????? Water should get rid of the ice???????

[@thehvachacker]

You can yet than your running 300 feet of hose. The outside air melted it down rather quickly. I only went to my truck pounded a bottle of water and came back possible 15 minutes. If it will take to long I shut it down and come back the next day. I had to do that today on an a-Coil. I didn’t have time to defrost it and was there for a different unit not working

[@daniellgeiger2076]

You would have water running down the return duct into someone's ceiling if you used water on a packaged unit, plus a it would be a big hassle and lots of time getting a hose up there.

[@civildk9077]

Thanks for the video's! However, I have an issue, possibly caused by "over-loading" the AC system or " too much demand ". A 5 yr old caused my AC to 'freeze up', using "too much toilet paper". YUP! SHE did it! Here's HOW. 5 yr old, clogged my toilet. THEN, flushed. Toilet kept running, 'OVER-FLOWED', onto my bathroom floor! (insert "Another 'bleachable' moment" video here) This causes, "insurance claim". Remediation team comes out. 2 adjoining (un-insulated doors and attic) spaces either side of 2 floor (upstairs) bathroom are opened up and fans/ heaters/ dehumidifiers are placed along w/ the bathroom and hallway. (total of 4 dehumidifiers/ 6 fans) Doors to the attic spaces, either side of upstairs bathroom, are left open, in opposing 2 bedroom closets upstairs. basically, effectively, MORE than quadrupling the load on the AC from 500 square feet of area to be heated/ cooled to almost 2000 sq. ft. It's the 'end of April' 1st week of May. HOTTER than normal, of course! NOW, the AC system... KEEPS RUNNING to cool the area. SYSTEM is located (return air vent) directly outside the effected bathroom, in the hallway, at the top of the stairs. It gets hotter. Demand is sent to the system to RUN! System in 3rd attic space (not connected to the other 2) FREEZES UP. Fan is running, NO air flow due to ice blockage. System outside.. Keeps trying to do it's part of the demand. Get's HOT. Circuit board overheats. On/Off. On/Off (due to pressure switch). Voltage draw. (On/Off) Is UP/ DOWN. Capacitor fails/ circuit board fails. Downstairs system is NOW carrying the entire house.. PLUS the EXTRA attic spaces. $650+ later in repairs/ checkups/ service calls, on BOTH units. NOW, the 'debate' begins w/ the insurance company. IS THIS CAUSED BY OVER-FLOW/ REMEDIATION of the Insurance claim/ "Remediation" crews action(s)/ inactions. THEY left the doors open to the attic spaces, placing the 'uninsulated' / 'uncooled'/ temperature controlled areas ON THE SYSTEM, causing it to 'attempt' to 'keep up' w/ the demand on BOTH AC SYSTEMS. NOBODY seems to cover this because, 'it's NOT SUPPOSED TO HAPPEN. NOT just leaving 1 door open, but 2 doors, NOT to the outside of the house, but, to the OPEN ATTIC where I'm sure, temperatures were above 100 degrees, WITH heaters/ dehumidifiers/ fans. Thoughts?

[@AaronScutt]

Do you patch your test probe holes off cam?

[@thehvachacker]

Yes I try not to drag out the videos

[@AaronScutt]

@@thehvachacker Haha, vids are great..I am not even in the business and I watch and learn. That was just hanging in my mind after this one.

[@mihaiachim5299]

The HVAC Hacker You Could not use as a temperature messuring points the rubber plugs from the base of the device so that you did not have to drill the covers ?

[@thehvachacker]

I could open the panels and put the probes inside if I didn’t want to add test ports. Yet I feel test ports are good for future testing.

[@dieselchevette]

With that low of superheat, it makes sense the head pressure is high, the compressor is still puking out oil due to low discharge superheat. Anything less than 5 is risky as hell. Cant wait to see you fix that too :)

[@thehvachacker]

Compressor was all sweaty, possible overcharge or incorrect fan setting. I wish this system would give a service valve after the condenser instead of before on the discharge. Once that motor is scheduled I will play around with it

[@lancerudy9934]

You killed the blower when killed the compressor

[@thehvachacker]

Fake News! Sorry guess again

[@eraldfaja1387]

Turn the heat on 🔥 to melt the ice

[@thehvachacker]

heat is after the frozen coil in air stream. The very hot outside air melted it down quickly

[@chadsix]

u also dont wanna do that on like Residential units. Better to just leave that fan on or use a hot air gun. can expand the unit n waste the longevity of your high temp safety. cuz it might cause them to trip. the more the safeties trip the likely chance u'll have to replace them.

[@rossr4222]

Your electric leads are sitting in water dude. Be safe out there haha

[@JeffreyGroves]

Is your last name Rossmann by any chance? You sound like you could be Louis' brother.

[@renecuevas4128]

We have a lot of that here Stuck Contactor my second Shot 😃

[@xraybravo7180]

Nice video, I got a question how long for the compressor it takes to drop the start cap from circuit, what happens if it stayed in the circuit if the potential relay was bad ?

[@thehvachacker]

Seconds the start cap drops out. If it doesn't drop out compressor can lock rotor overheat, blow fuses or breaker, open internal overload

[@xraybravo7180]

@@thehvachacker got it, thank you for answering.

[@WillieMakeit]

i wonder why you wanted shut that down right off the bat, valves are premature shot now, and it just takes longer to defrost. maybe I'm wrong

[@buixote]

You guys ever use "de-icer"... like they do on planes?

[@Mexmade]

I hate ECM motors, they are aka saving money in electricity but once they go out the savings go away 😂 (the module cost almost the same as the motor)

[@1mw4tch1ng]

did you check the other unit if the same type unit has a schematic diagram?

[@thehvachacker]

This is the only trane on this roof.

[@nashguy207]

IM in middle Tennessee what brand of heat pump should i buy its a 2.5 ton unit

[@scottgrigsby4210]

voltage across an open switch, zero across a closed switch, you can have a feed back with a single pole contactor and by going to ground you will get a feed back and think you are getting proper voltage but you are not, its just feeding though the load, think about that one.

[@johnbixler1758]

where did you get your test gear

[@mychoclabwinston]

Not to often you you find a ECM rooftop, you could just hook up a ECM tester to R and C, and see if fan comes on

[@makinbac0n]

DC Blower motors... Yuck! Every component added to a system is just another point of failure.

[@KaesOner]

You're either joking or very uneducated. EC fans, which happen to be DC motors, are the most efficient and reliable fans today. Just the savings in electricity alone is enough to choose it over any normal ac fan, let alone the ability to intelligently auto-adjust/vary the speed according to the load, massive reduction in noise, brushless. plus many other benefits.

[@makinbac0n]

@@KaesOner I dont really have a problem with the motors as much as the controllers. They seem to be the point of failure most times. At least in my experience.

[@oidodsonidosonido2754]

You have a frozen coil. And you turn the unit off before checking airflow???? Not what I would of done anyway.

[@thehvachacker]

You way is not the only way. Many ways to troubleshoot. The outcome is all that matters. An iced up compressor means no air flow. Therefore I checked once I opened the system. Then I had to find cause.

[@oidodsonidosonido2754]

Ad that’s why I said not what “I” would of done.

[@shanes.6128]

An iced up coil does not always mean no airflow. Come on buddy

[@thehvachacker]

@Shane Silva Iced up compressor is lack of superheat, liquid refrigerant slugging back to the compressor. This only happens when the evap coil is frozen. Deposition instead of sub-cooling taking place on the evaporator and suction line. Also, heat pumps are never found on RTU's around here. To your comment where you stated I should of turned the heat on.

[@oidodsonidosonido2754]

The HVAC Hacker so su cooling takes place in the evaporator okay.

[@romanadriel2877]

First video I've ever seen the technician confirmed electrical disconnect before touching wires in the unit.

[@Vfh........y]

I do every time......every time.

[@sp7864]

Why do you start pulling wires off the contactor and capacitor? Your first determination should be made to see if you have control power to your contactor coil. Then to see if the points are burned closed which would keep the compressor running constantly. Then check the blower motor to see if it’s running or not, no fan will make a system ice up quickly. But don’t just start pulling wires and say a relay is bad without a few visual checks first. You’re guessing without some definite answers and you’re doing unnecessary steps.

[@thehvachacker]

A blower motor not running will make a system ice quickly. You should try it. It's how to look for a restriction in an evaporate coil. Experience will help you find problems and skip over steps you feel you can skip. Sometimes you can always go back and check. Everyone does a service call differently, only thing that matters are results. As for the contactor it needs to be replaced wether it was currently causing a problem or not. Points were burnt, just a matter of time till it fails. Why not address a worn out part?

[@Izeba]

“ what we have here is a failure to communicate” lol Was that a guns and roses reference

[@imyyz4u]

"Cool Hand Luke"

[@chrisvig123]

Guns and Roses lol

[@TheMaster5150]

Movie Cool Hand Luke, and play on Guns N' Roses Civil War.

[@shanes.6128]

ITS EASY TO BE A PARTS CHANGER! Send this guy back to school!

[@shanes.6128]

By the way it’s 2019 it ain’t hard to pull up a schematic on your phone

[@thehvachacker]

I found the problem and had the unit running before leaving. Without replacing anything. Where in this video did I play the role, of a parts changer? I always verify failure before replacing anything. Your comments make you seem uneducated.

[@RICKRAZO]

The HVAC Hacker great job man. Please keep em coming. Glad u showed us how to troubleshoot before condemning parts or swapping. Thanks again

[@sisaytulu5216]

Its nice work,but ur not explain enough about the problem and what u doing

[@yogitech3524]

Which camera do you use for video shoots?

[@1topfueldrag]

i’ve never seen a pull down in a drop ceiling

[@Alacazar22]

I have to say, for an app calling itself measure quick, its not very quick

[@Samthe17]

Ice Ice Baby.

[@robpowell7599]

The whole tongue or just the tip 😂😈

[@thehvachacker]

The underside so it wraps around and explodes 😈🤡👻

[@Sunrise_HVAC]

This is something simple. I have not seen the whole video but it has an x13 motor it’s bad and yes it would just like that if not turned off by user. Looks like it’s not a heat pump but anyway you would need a module. Replace module and your problem solved. All I see is a lot of wasted time here.

[@thehvachacker]

I got the system operating before I left. Yet still replaced the motor and module. How is providing customer with cooling on very hot days a waste of time?

[@RICKRAZO]

At least he got it goin b4 he left. The extra effort separates him from others. And still finished the job . And I’m sure his time spent up there is mostly for our benefit to learn, I’m sure if he wasn’t making an educating video, he would get things done faster. But he is doing this for us and I’m thankful.

[@RICKRAZO]

The HVAC Hacker thank you