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I agree with everything Skippedover said.Get a second opinion!
68 degrees tells us nothing.What is the return tempature?
What is the subcooling? What is the cfm of the air?
How dirty is the inside...

Actually it is true.
Horse power is a unit of measure.It is determined by the size of the armature,the number of copper windings,the size of the copper wire in the windings,the configuration of the...

All motors used in the US have to conform exactly to the NEC and the UL codes.A 1/4 hp is a 1/4 hp is a 1/4 hp.
All electrical appliances in the US will accept a 10% varriance i.e.
a 120v motor...

So your remote doesn't go any higher than 76.Very strange.
Also its been a long time since I seen one but do you not have any vane adjustment?

The simple answer is that you got the wrong motor.
When you replace a motor you look for 1) voltage 2) horse power 3)rpm
4)frame 5)_service factor_ 6)type of bearings 7) rotation
8 you always...

Talk about the ultimate parts changer!!!!!
I've worked on units 30+ years old still kicking just fine.
Replacing at 10 years is sheer nonsense.
Its worked for ten years ,,,find out what is wrong....

I saw a segment on the Travel channel with Burt Wolf I think.It was a southern plantation.That also had a staircase as you discribe.
The differance is that they had found natural gas on the...

Wow this is differant.You wanna go to the ice box and get me a cold one so I can think about it.

I have no idea what Mexico calls elec service.Is it 100v or 120v or 150v ,I have no idea.Is it 50 or 60 hz?
Then it might be wise to walk around a bit and see what brands are in common use.There is...

Unit is made in China.
USA distrabrution is spotty at best making parts availibility a guessing game.Tech support is wrose than parts supply.
Warranty will most likely be like pulling teeth.
But...

Well lets see.
Its 100 degrees outside,,its 80 degrees inside and tou have 60 degree supply.
Could be a dozen things but I'll go out on a limb and say its an air delivery problem,or its a dirty...

Change the oil and go back to work.

You're going to need to replace that "Trane" very soon if you don't remove the restriction to air flow soon.

Here is something you may not know.In order for a local wholesale house tyo carry the Trane line,They must employ a factory trained field service rep.His job is to educate Trane dealer on the Trane...

Oh OK thanks now I know.I've only seen pictures of those.

This is what? A ptac unit or a mini split?Is it r22 or r410?
Did it ever work to your satisfaction or is this a new unit?
275/65 sounds like r22 at a 80 something outdoor ambiant.If it were 100 it...

You have more problems then I can help you out with.
I can tell you that 13 seer is the lowest seer rating that can be legally sold and I can tell you that r410 is the only gas allowed in new...

I once got a call in the morning of a furnace that wouldn't shut off.It was an elderly lady and she said it was so hot that her cat had laid on the steps and wouldn't even move to go outside.
I got...

Used to be a way of judging the competition.
Did they have the 260 or did they piddle with a Universial

To make any kind of judgement call on your ductwork from 2000 miles away is impossible.We would need pictures all around.
We can say some general things like if you have 18 year old ductboard...

First with a new house or an old house everyone is guessing on what size your house needs if they don't do a manuel "J".
So if you want to live with someone's guess fine,if you want to know then...

I've seen and worked on a lot of differant furnaces but I have never seen a "thin boy".
Would it be possible to take some pictures of it(the more the merrier) and post them here?
Its a long shot...

When you leave half a system in there are just too many things that you don't know that could bite you in the behind.
Your best bet and your cheapest way out is to have a basic no bells or whistles...

OK a couple of things.
First I don't know what your design temps are.If 100 is an unusual high then your unit might be sized correctly.
Second is that if your tech didn't look at the underside of...

The SOV would tell you.

I don't understand why anyone would chose to guess at what their home needs when a scientific method exists to pin point that information.
WEhat you have to realize is that who, ever sells and...

I assume you are happy with where you live and intend on staying there for a good long time.
it is according to what you have said very likely a real ductwork problem.It may have been too small for...

If the curved blades of the blower wheel are filled in with dirt,that could mean a 50% or more reduction in CFMs going through the a coil.
From your discription I believe it should be pulled out of...

Just a little history.
Carrier was the first company to build units for residential use in a high production way.After WWII they couldn't manufacture enough units so they have experience going for...

Kinda makes you want to grab a Kleenex doesn't it?

I have read similar stories for the last 20 years.I have talked to business owners from all over the country and its always the same thing.
The lack of kids looking to learn is very low as its now...

Your TD is bad which could be the result of a lot of things like improper charge IE super heat and/or subcooling are off ,Wrong fan speed,dirty coil,wrong size ductwork also correct number of supply...

You said you had a new Trane installed.Did they also install a new indoor unit.or coil??? If not your coil could be very dirty or the txv bulb isn't positioned correctly or maybe the fan isn't set on...

Its not the pretiest thing ever but what about using shears to cut a large hole on the panel and then using a piece of 24 ga metal with a gasket and zip, screw that on to cover the hole.
Just be...

Just a clue for you.Trane has probably sold more 2.5 ton systems then almost anyone else and that makes your guy "full of it" and I wouldn't let him talk to me on a phone because he is scarey stupid....

Well you know I had a problem like that a while back.
It was at a store going out of business.They had brand new men's shoes on sale for $5 a pair.The only problem was they were in bags ,not boxes...

Well a couple of things;
First Skram0 will probably not answer you from a month ago because his computer probably burned in the fire.
Second is just what does your "tech school " tell you to do...

Well I will answer your questions even though I think you should have started your own thread.
My complex have 5 men.There used to be six but the complex just hired a new manager and the...

Welcome to the world of HVAC where knowledge is everything.
Cheap equipment can be made to work with knowledge and expensive equipment can be made into a world of problems without knowledge.
So how...

I am aware of companies that have charged for a manuel "J" and then credited the job for that charge iof they got the job.
I don't have too much of a problem with that as it does a little time to do...

The answer is because each size ductwork is designed for differant size units under differant situations such as insulation,length of run,differant amount of cfm needed for each differant size room...

I've heard enough to tell you he isn't smart enoyugh to tell you anything.
Get a second opinion.
I'm not going to argue his compressor test because he didn't do enough to even come to a conclusion....

Ok assuming that you have a two way off the plenum duct runs and that you have a 3 ton system.And assuming that they all were 6" runs.
Yes you would need about 12 runs all together.assuming 100 cfm...

With the "Screen" what you get should be easily rinsed away with a garden hose.
Without it it takes what seems like forever to get the coils clean.
Nothing is perfect but this product makes life a...

Is that R22 ?
It looks like both sides should be higher at that OD temp.
By the way,throw that "gun" tempature reader back in the box and get the real tempatures.

Ahhhh come on kidd . Thats the kind of stuff we had to work with to get us in the ball park before computers showed up and directed us to the row and seat number in that ball park. LOL

Just google A/C Kleen Screen.
You have indoor filter now,just make sure to change it as needed.If its only a 1" filter you could get a much better 4" filter installed to keep your indoor equipment a...

I'll give you a real old rule of thumb which is in no way scientific but might get you into the ball park.
You have to look at your ductwork and count the number of takeoffs going off of it.Take the...

This has been a pain in the behind since outdoors condensors.Where I used to work a lady used to make and sell condensor filters with elastic on the top and bottom.
Today there is a product called...

Don't know for sure but I'll bet big time its a lot bigger than what your manuel "J" says.