Help! Electric Trane XR12 HVAC Not Blowing Warm Air


  #1  
Old 12-28-14, 09:12 AM
M
Member
Thread Starter
Join Date: Dec 2014
Location: USA
Posts: 12
Received 0 Votes on 0 Posts
Help! Electric Trane XR12 HVAC Not Blowing Warm Air

I have a Trane XR12 HVAC and I turn it on and the thermostat current temp says 59 and I set it for 78 and I felt the vents. It is blowing air, but not warm air. Even after 1.5 hours, the room temp barely went up from 59 to 60 degrees! I went outside and checked the unit and the motor is running and the fan is blowing, but the house is not warming up. I even turned up the temp to 85 degrees and don't notice much heat coming out. Just slightly cool air. What can I do to troubleshoot and resolve?
 
  #2  
Old 12-28-14, 11:00 AM
Houston204's Avatar
Forum Topic Moderator
Join Date: Oct 2009
Location: Texas
Posts: 7,518
Received 31 Votes on 27 Posts
Open the panel to your outdoor unit and visually inspect for swelling on the capacitor.

Name:  Cap slightly swollen.jpg
Views: 1855
Size:  47.4 KB

This slightly swollen cap would require replacement.
 
  #3  
Old 12-28-14, 09:38 PM
M
Member
Thread Starter
Join Date: Dec 2014
Location: USA
Posts: 12
Received 0 Votes on 0 Posts
Thanks for the response. How do I know what she swollen capacitor looks like? Would the body be swollen or the contacts at the top be swollen? How much would a replacement cost? Are there any safety items I should be aware of in doing the replacement if it's needed?
 
  #4  
Old 12-28-14, 09:55 PM
Houston204's Avatar
Forum Topic Moderator
Join Date: Oct 2009
Location: Texas
Posts: 7,518
Received 31 Votes on 27 Posts
A capacitor can hold a charge for a few minutes after removing power.


Most units have a dual capacitor that serves the fan motor and the compressor motor. If you have a dual cap it is important to snap a picture or write down the color = terminal combination in use.

Match the voltage and microfarad value of the existing cap if you replace it.
this is a 5 uF plus 40 uF dual capacitor that is very swollen on the terminal side.



A cap should not be swollen.


35 dollar meters are available that can measure capacitance...
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: