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Why not just roll it on the ground?

When you come across an issue such as this. You need to also grab the motor shaft and check for end play. I will check the motor shaft for end play first and foremost… unless there is visual damage to the blower wheel . If you think the what may be bent you need to check with a square that the shaft is straight and true.(remove blower wheel)

The squirrel cage is bent not the shaft

Sorry to say this but it’s just crappy equipment. Sometimes it cost the company more money to install crappy stuff because of all the warranty work you have to do.

Yes it's your wheel. With motor and wheel put together and motor on flat surface your wheel should not wobble. Any wobble is bad wheel. Sometimes in shipping they get bent. Also a quick way, but not as effective, is to just roll the wheel on the ground and see if it wobbles to the side or looks funny, this is a test you can do in the parts house parking lot

Don’t fret about 20 degree superheats. Copeland recommends a minimum of 20 degrees at the compressor to prevent flood back. The following was copied from a Copeland bulletin….. In order to assure that liquid refrigerant does not return to the compressor during the running cycle, attention must be given to maintaining proper superheat at the compressor suction inlet. Emerson recommends a minimum of 20°F (11°C) superheat, measured on the suction line 6 inches (152mm) from the suction valve, to prevent liquid refrigerant floodback.

you cant flow through a compressor. your best bet is to run the nitro through the, turn it off

I would walk away from a shit install like that. That install would never pass inspection in my state. They should have ducted to a closet upstairs or added one and installed a counterflow furnace or ducted outdoors to a package unit. That was a who did it and ran job! Wait until it floods in the crawspace and takes everything out in the middle of winter.

Motor is bad. There's a lot of junk out there my friend. Remove motor remove blower set motor on flat surface spin by hand slowly should be able to see bent shaft. Or bad bearings. Crappy parts are becoming a real problem.

I do not think there is anything wrong with the txv. its not odd to see superheats around 20 copeland even says that 20 degrees of super heat at the compressor is optimal for cooling the compressor and not getting flooded

it sound like you have a loose duct in the crawlspace. I'm basing that off the fact that you said it was "cold" in the crawlspace. anytime the crawlspace has an abnormal temp it indicates a loose duct

you are not getting an accurate reading due to where your monometer is place. the fluctuating number are due to turbulent air. most likely not the blowers fault. The probes are just to close to elbows. I love the videos man. keep up the good work. I love watching you work out new and challenging problems.

That condenser coil needs cleaned that’s why you only feel the air around the side, I do the dollar bill trick by laying down a dollar bill on top of the unit and see if it blows away…..those carrier and Bryant’s are bad about the coils clogging in those older ones

Cool video man. Don’t see that everyday

The last time I felt with that the set screw was on the round of the shaft rather than the flat.

I dig you are using MQ !! Killer tool. That superheat is way high pop. I would be looking at the txv if it’s adjustable or not. You’re definitely under a latent load. But I think 25 ish is still cause for concern

Douche the contactor down with WD 40 and it will shut up works every time.

its the motor shaft, use a stationary to eyeball the run out on the end of the shaft

Put the motor and wheel together on the ground and spin wheel by hand. With the motor back part flat to the ground and since the motor back and ground are flat, you can see if the wheel is out of balance. Sometimes the housing or leg mounts is warped or bent and makes it look like wheel is out of balance

I’m no genius but it looks like to me you replaced the wrong part

Check the shaft on the motor

Always check the registers are not closed. I run into a lot of 2 story single zone systems people try to close all the 1st floor registers trying to drive more air upstairs and drastically reducing the airflow.

I like to see what the underside of the evaporator looks like... bet it's pretty bad.

Bent motor shaft. Air handler was probably dropped during transit. It bent the motor shaft and damaged the wheel. Original wheel was probably damaged too. It's why the new wheel helped a little bit.

Bad constant torque ruined the wheel and will do it to new squirrel cage GUARANTEED

I don't have anything to add to what the other guys have said in the comment (looks like the shaft is the culprit)... except did you get time + 1/2 or 2 X for working on Labor Day??? Hope so!

On the ecm, the motor is the problem

A service call on a holiday. That sucks!! Hopefully, you got some kind of bonus pay!! 😮

Bad bearings?

One of the things I did when that happened to me was I took the blower wheel off the motor and put the motor on top of the air handler. I turned the power on and watched the shaft spin. I could see how bad the shaft was and the motor was vibrating on the air handler.

the wheel is looking whobbly, not sure if any others here see that @15:43

100% a bent shaft

Grab a motor from your truck stock... place it on a surface so the shaft is horizontal put the blower wheel on it and spin it . Don't have to tighten the set screw. If it wobbles you know it's the wheel.

In those kind of situations after you tried all the tricks you knew how to do parts changer is ok. Definitely replace that motor to eliminate future call backs. Also could be a defect from the manufacture

Just think about it if it’s your car tire if you have a bad shaft on your car it’s going to have a unbalanced tire roll

A call bad shaft think about it if you have a bent rod roll it on the floor what happens when it rolls

It’s the shaft on the motor

Watched a video from another UA-camr the other day with the same issue. But he swapped the motor and wheel and it fixed the noise complaint. It does appear that motor shaft has play in it so I would’ve replaced both, but you did say from your perspective it didn’t seem to have play so I get why you just went with the wheel

What’s hommito just got done with install checking out your. Video

Maybe the scraping wheel caused damage to the shaft, roll the wheel on a flat surface and see if it rolls even. My guess is the motor shaft is out of wack.

Swap motor and wheel bro

Just hearing the dog reminds me why I will always hate residential work.

Why didn't you place your amp probe around the little popper wires and check the fuse circuit amperage draw before replacing the fuse?

Only use a 3M pad when cleaning the flame rod sand paper is to harsh and will give you more problems then solutions.

The second unit was a dead giveaway with the refrigerant oil laying in there

That job I would have changed out the ECM to a PSC motor and simple rewire job. Save money and have it up and running the same day. ECM motors reclaim all the energy savings money when the go bad .

Try LACO brand spray Gel, it is the best, I tried others none add up to it.

This is why I skipped install to tech 😂 If you are new in the field apply for tech sales.

Careful with that casual conversation bro. You never know what they'll remove next 🙈🙉🙊. Ignore your eyes and ears 😋