Outside Unit Fan problem

[ricanelite]

When Compressor is off the outside fan unit slowly turns. There is still 125 Volts still going through, which is making the fan still spin at a slow rate. When you turn the unit on the compressor shuts off and when you turn it off the outside unit fan still turns.

What possible suggestions you all could give me.

Also the outside unit is a Trane which is a R22 and the number is 2TWBOO24A1000AB. Also we have replace the circuit board, contactor and check the wiring. Still happening.

[Mr Bill]

Also we have replace the circuit board, contactor and check the wiring. Still happening.

Who is we? if it's a service company and their just changing parts to figure out the problem you might want to call another company.

[hvacismybus]

When Compressor is off the outside fan unit slowly turns. There is still 125 Volts still going through, which is making the fan still spin at a slow rate. When you turn the unit on the compressor shuts off and when you turn it off the outside unit fan still turns.

What possible suggestions you all could give me.

Also the outside unit is a Trane which is a R22 and the number is 2TWBOO24A1000AB. Also we have replace the circuit board, contactor and check the wiring. Still happening.

replace the capacitor, and check the fan contactors.

[ricanelite]

well I work for a Apartment Complex and me and my supervisor are trying to figure this out. It has been something we have dealing with now and we cannot find any suggestions or help. We talked to Trane and headed over to the locadealer and they couldn't help us. So I figure I will start looking on the web and hopefully get something.

[hvacismybus]

When Compressor is off the outside fan unit slowly turns. There is still 125 Volts still going through, which is making the fan still spin at a slow rate. When you turn the unit on the compressor shuts off and when you turn it off the outside unit fan still turns.

What possible suggestions you all could give me.

Also the outside unit is a Trane which is a R22 and the number is 2TWBOO24A1000AB. Also we have replace the circuit board, contactor and check the wiring. Still happening.

something is definetly wired wrong your missing it.

[Mr Bill]

well I work for a Apartment Complex and me and my supervisor are trying to figure this out. It has been something we have dealing with now and we cannot find any suggestions or help. We talked to Trane and headed over to the locadealer and they couldn't help us. So I figure I will start looking on the web and hopefully get something.


If you could apply for the Pro section we could help you a lot more, we are really not allowed to give any play by plays here on the res. forum, per. the rules.

[Mr Bill]

something is definetly wired wrong your missing it.

I don't think anything is wired wrong, being it's a Trane I probably know what it could be, but we cannot discuss this on the forum. Read the rules. :D

[ricanelite]

what type of wire? Because we looked at a same outside Unit and make sure all the wires were in there place? Also the unit was working fine. He installed it and everything was working perfect until this rolled around.

So here is the list of what we did.

Check Wires
Replace Circuit Board
Replace Fan Motor
Replace Contactor
Replace Compressor

What we are confuse about is why when the unit is off why is there still a 125 volts still going to the fan causing it to spin?

[Mr Bill]

So here is the list of what we did.

Check Wires
Replace Circuit Board
Replace Fan Motor
Replace Contactor
Replace Compressor



Why didn't you just replace the whole unit if you did all this? :rolleyes:

[ricanelite]

Well I just register here for the first time. Also what is pro? Is that something I have to pay monthly for?

[Mr Bill]

Also what is pro? Is that something I have to pay monthly for?

No not at all no charge, we just have a forum dedicated to the Pro's were we can discuss problems between the Pro's so we don't leave enough information out on the table in the res. forum for someone to kill themselves, I know you understand what I am talking about. I am sure your application will be considered soon, thanks for coming to the worlds greatest A/C and Heating related forum and thanks for applying for you Pro. status.
Mr. Bill

[gevans]

Many units are wired so that the condenser fan motor is always hot on one leg, thus the 125 volts. This does not necessarily mean anything is wrong.
However, if the fan hums and turns when the contactor is not pulled in, the motor is internally grounded. I have seen this happen several times from a lightning strike.

[micdundee]

call one, to many parts and man hours already spent on your problem.

[Airmechanical]

so here is the list of what we did.

Check Wires
Replace Circuit Board
Replace Fan Motor
Replace Contactor
Replace Compressor

What we are confuse about is why when the unit is off why is there still a 125volts still going to the fan causing it to spin?


confusion will get you hurt in this buisness,
i guess you own a meter but,
any competent tech. would have fixed your problem
the first time out, and you would not have needed
to buy and replace all those other parts.

congradulations you are now an official parts changer!:o

if you would have called a service tech.
you would have saved much time and money



.

[coolguysfl]

125V is not supplied to the unit, STOP before you hurt yourself or burn a building down.

I understand the perspective of the apt complex... keep cost down.. change some parts,, then some more parts but don't call someone that knows what they're doing, that might cost money.

So what we've got here, is a managements decision that leaves you as a employee stuck in the middle - that's unfair to you, certainly the tenant who hasn't had air for days & weeks at a time from your description.

So lets calculate their savings:

Compressor @ $400.00
Drier @ $ 25.00
Torch Set @ $500.00
Brazing Rod @ $ 40.00
Recovery unit @ $650.00
Gauges @ $145.00
Refrigerant @ $125.00
Fan Mtr @ $ 75.00
Fan Cap @ $ 26.00
Cont actor @ $ 35.00
Circuit Board @ $ 65.00
Meters @ $245.00
Hand Tools @ $500.00

Total so far @ $2826.00

Your EPA certification to handle the refrigerant:
Nominal @ $500.00
Your hours @ $12.00 an hour (you do get paid right?)
Nominal @ 20hr @ $240
Your cost of the employer to match your social security / workers comp / vacation / unemployment ins. / liability ins / cell phone / uniforms / truck or vehicle allowance etc etc ....Lets just agree it's a lot and I've been gentle
Nominal @ $750.00

Sub Total @ $4316.00
And the UNIT is still not fixed & you still don't have a clue what you're doing!!!!!

Are we hav'n fun yet?

Amazing - just amazing.


Lets see, an average service ticket runs $265.00 parts & labor.... they leave the UNIT working & guarantee their work.

Let me suggest you print this post, & take it to the brain trust you work for.

Certainly it took some level of interest just for you to look into this site. This can be a rewarding industry, if you wish to pursue it, go to tech school, get a job with a good co. -- but if nothing else STOP before you hurt yourself or someone else.


And one more note to the jabonees that ether have an ego problem or just diarrhea of the mouth that keep offering technical advice to clearly a novice - this isn't the time or the place.

[gsxrsquid]

yep sounds like motor is grounded to me. I've seen it before.

[jrbenny]

He replaced the motor. :D

It's the other thingamabob that he didn't replace.

[smokin68]

You have no business hurting that poor unit. Put down the tools, grab your boss by the hand, and lead him to a phonebook where he can call someone that knows what they're doing. In an apt complex, you're risking hurting tenants, so STOP RIGHT NOW.

[too tall terry]

Why didn't you just replace the whole unit if you did all this? :rolleyes:LMAO,there ain't much left to change out is there?:p and how would replacing the compressor fix the fan?.........i think if you re-paint the unit that would fix it :D

[crlnat]

a good coat of paint couldn't hurt every thing else is new

[Airmechanical]

[QUOTE=too tall terry;1332306 i think if you re-paint the unit that would fix it :D[/QUOTE]



but you must use paint with low cfc's :eek:



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