View Full Version : Trane heat pump - fan turning but no cool air in the house
frye1977
Apr 26, 2009, 01:05 PM
Hello,
I have a trane TWR024C100A1 heat pump, outside unit that today when I turned the a/c on the air would not blow cold.
I check the wiring inside of the honeywell thermostat and it is wired properly.
When I went out back to look at the heat pump it sounded like the fan was stuck so I gave it a nudge and it started and is still running.
Last year I replaced the compacitor.
The fan is still running but it doesn't sound like the compressor is and the air in the house is not cold.
Help please house is too hot?
Thank you
Eugene
Joshdta
Apr 26, 2009, 01:10 PM
OK there are a number of things that could have happened.
Joshdta
Apr 26, 2009, 01:11 PM
The compasitor may have went out again, that is why the compressor is not running. Or the fan motor is going bad and did not start causing the compressor to over heat. The compressor may have locked out on inturnal overload from being too hot.
Joshdta
Apr 26, 2009, 01:12 PM
Do you have a volt meter?
frye1977
Apr 26, 2009, 01:15 PM
No I don't
frye1977
Apr 26, 2009, 01:17 PM
Should I turn the unit off for a while to see it it will cool down?
frye1977
Apr 26, 2009, 01:19 PM
One other thing I know that one of the lines should be cold to the touch but the are both just warm. Is that also because the compressor is not running?
Joshdta
Apr 26, 2009, 01:19 PM
Yes what you can do is turn the power off and spray the compressor with a garden hose to cool it down faster. And I would check the capasitor it is if it is swollen or busted.
Joshdta
Apr 26, 2009, 01:20 PM
Yes, with the compressor not running both lines will feel the same temp and the air coming off the fan will not be hot.
frye1977
Apr 26, 2009, 01:22 PM
Ok I'll shut it off and hose it down, how long should I wait before trying it again?
Joshdta
Apr 26, 2009, 01:27 PM
After you soak it for a couple of good minutes I would let it dry back out for 15 minutes or so before you turn the breaker back on.
Joshdta
Apr 26, 2009, 01:28 PM
On a trane unit you may have to take the plastic top off the unit to get water to the compressor. I believe it just snaps on.
frye1977
Apr 26, 2009, 01:39 PM
Ok I'll give it a try, thank you for all of your help. I'll let you know how it works out.
Joshdta
Apr 26, 2009, 01:40 PM
OK keep me posted.
frye1977
Apr 26, 2009, 02:12 PM
Well I gave a good rinse with the hose and waited a little while before I turned it back on. After I turned it back on it took about 3 minutes before I heard anything at the heatpump. I heard something click as if the motor was engaging but the fan didn't spin nor did the compressor come on.
frye1977
Apr 26, 2009, 02:13 PM
I turned it back off rinsed it off again and am going to wait 30 minutes this time. If I had nudged the fan it would have came on.
Joshdta
Apr 26, 2009, 02:15 PM
If neither on came on I would take the side pannel off and inspect the capasitor.
frye1977
Apr 26, 2009, 02:18 PM
I looked at it earlier its not corroded, nor swollen it actually still looks brand new.
Joshdta
Apr 26, 2009, 02:26 PM
OK, then the probem my just be with your fan motor then
frye1977
Apr 26, 2009, 02:28 PM
Does the fan motor control the compressor?
Joshdta
Apr 26, 2009, 02:29 PM
No, but the compress may still be out on overload, does it hum or do anything?
frye1977
Apr 26, 2009, 02:54 PM
Well the motor just burnt up
Joshdta
Apr 26, 2009, 03:19 PM
That's not good, I would say your compressor will be fine if you get a new motor
frye1977
Apr 26, 2009, 03:20 PM
OK thank you again for all of your help, I'll get a new motor tomorrow from a local vendor.
Eugene
Joshdta
Apr 26, 2009, 03:23 PM
OK let me know if it turns out OK.
frye1977
Apr 27, 2009, 03:21 PM
Well I replaced the motor but still does not work. They gave me a new compacitor but its doesn't look the same. My old one had 3 prongs and this one only has two will that work?
frye1977
Apr 27, 2009, 05:35 PM
Ok I replaced the capacitor and now the fan works but I'm not sure that I have everything wired up correct.
From the new motor
Black, White, and brown
Spliced into
Black, red, yellow w/brown stripe
I now have two capacitors
35/5 440volt Red wire on the "C"
5mfd.370 volt w/ yellow w/black strip and Orange on it.
Is this correct because it doesn't sound like the compressor is working?
Joshdta
Apr 27, 2009, 05:54 PM
How many wires does your new motor have?
wmproop
Apr 27, 2009, 07:28 PM
I`m hoping yo didn`t try to replace the original capicitor with the one they sold you with the motor,, the new one should have been only for the new motor and the original left in place for the compressor to operate off,,
Maybe I`m understading wrong
Joshdta
Apr 27, 2009, 07:36 PM
You should have 2 wires on the new compasitor and 3 on the old.