Air conditioning issues


  #1  
Old 06-22-14, 04:18 PM
J
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Air conditioning issues

Hello there,
I'm having trouble with my air conditioning unit and need some help identifying what could be the problem.

First, the outside unit condenser fan stoped working and the compresor wouln't kick in and by reading an older post here I was able to diagnose the dual run capacitor was damaged as it showed signs of blowded/dome top so I replaced that. Once this was replaced I now can here the compressor kick in but the fan won't start. Then by reading another similar post I replaced the old condenser fan with a new one only to find out that was not the problem. Then somone locally advised to change the contactor switch so I did and the condenser fan still does not work.

I have replaced these parts:
New Condenser Fan
New Dual Run Capacitor
And new Contactor Switch

My AC unit is a Carrier Model 38ckc048 360/361

Any ideas what my problem could be? any advise will be greately appreciated. Thank You
 
  #2  
Old 06-22-14, 05:20 PM
C
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So if you push the contactor button in with a wood stick, does that start the fan ? or start the compressor ? or both ?
 
  #3  
Old 06-22-14, 05:24 PM
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That is everything.
Post some pictures of your wiring and the model number of your new motor so that we can help you identify your problem.

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Old 06-22-14, 06:41 PM
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Unfortunately now that you changed the condensor fan motor it may require a different capacitor. The size should be listed on the motor.
 
  #5  
Old 06-22-14, 08:26 PM
J
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that is correct, the new condenser fan came with it's own capasitor. I will take some pictures in the morning and post them. Thanks everyone for jumping in.
 
  #6  
Old 06-22-14, 09:01 PM
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If the new fan motor came with it's own capacitor then it should no longer be connected to the dual capacitor in the unit which may be your problem.
 
  #7  
Old 06-23-14, 07:44 PM
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Wanted to say Thank You for the good advise. It was a wiring issue that was making my new condenser fan not to work. Today I went to work really early and came back really late therefore I was not able to take pictures this morning. Came back from work with enought day light to mess with it and it turn out the two wires coming from the fan were plugged in the wron places. I have no one to blame but my self though. The condenser fan instructions clearly indicate not to go by the color of the wires and show a diagram on how it must be connected. The store where I bought the fan when he oppened the box he advised to connect the two brown wires to the new capasitor that came with the fan and then advised to plug the other two wires with the same color on the system. Mr dumb here, me, followed those instructions instead of going on what the wiring diagram showed on the fan. Lesson learned. Other than spending Thursday night up untill now with no AC my total expense was about $230 and now I have a system that should last a few more years. Thank You all again
 
 

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