My A/C is blowing hot air
#1
07-07-19, 06:14 PM
My A/C is blowing hot air
I noticed that my AC wasn't working right. I checked the outside unit and noticed that the fan wasn't working. Can someone tell me how I can try to fix this?
Last edited by PJmax; 07-07-19 at 08:32 PM. Reason: reoriented/resized pictures
#2
07-07-19, 08:36 PM
Group Moderator
Welcome to the forums.
Best place to start is checking for 240vAC where the power lines enter the contactor.
Then make sure the contactor is closing.
If it was..... you should have 240vAC on the T side.
If the contactor is not closing..... check for 24vAC on the yellow wires. Typically there is a pressure switch inside the unit and it would be connected in the yellow wires but I don't see one in your condenser.
Best place to start is checking for 240vAC where the power lines enter the contactor.
Then make sure the contactor is closing.
If it was..... you should have 240vAC on the T side.
If the contactor is not closing..... check for 24vAC on the yellow wires. Typically there is a pressure switch inside the unit and it would be connected in the yellow wires but I don't see one in your condenser.
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#3
07-08-19, 05:29 AM
Group Moderator
Is the compressor kicking on but condenser fan not starting or nothing starting at all? Thought Pete would ask that. 
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#4
07-08-19, 10:49 AM
Thanks for the replies. I don't really understand what "contactor closing" means. Do I need to buy a voltage tester for that?
And yes, sounds like the compressor works but the fan isn't spinning. Has a humming sound when it is on.
And yes, sounds like the compressor works but the fan isn't spinning. Has a humming sound when it is on.
#5
07-08-19, 11:06 AM
Member
Where’s the capacitor for the fan motor? I only see one side of the duel cap connected.
Yes you’ll need a meter. And you’ll be working with live high voltage.
Yes you’ll need a meter. And you’ll be working with live high voltage.
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#6
07-08-19, 02:52 PM
Group Moderator
It looks like the motor may have been previously replaced and the capacitor is now next to the motor.
Look inside the top grill and see if the capacitor is near the fan motor.
You will have to remove power from the condenser and lift up the fan grill to access the parts.
Look inside the top grill and see if the capacitor is near the fan motor.
You will have to remove power from the condenser and lift up the fan grill to access the parts.
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#7
07-08-19, 04:35 PM
I removed another panel and was able to take these pictures. I hope this helps. At this point I have called an AC guy, who will be coming tomorrow night. I don't have any additional funds saved for this. At this point I just needed to get some knowledge so I don't get ripped off. Thank You.
Last edited by PJmax; 07-08-19 at 05:02 PM. Reason: added two pics from links
#8
07-08-19, 05:04 PM
Group Moderator
That is the fan motor and the fan capacitor.
Since I see a brown/white wire on the capacitor...... that tells me that motor and cap have already been replaced. It may be just that 7.5uf capacitor bad or it may be the cap and the motor again.
How-to-insert-pictures.
Since I see a brown/white wire on the capacitor...... that tells me that motor and cap have already been replaced. It may be just that 7.5uf capacitor bad or it may be the cap and the motor again.
How-to-insert-pictures.
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