Heat pump condenser fan

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  #1  
Old 10-20-18, 12:48 PM
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Heat pump condenser fan

I have, what I hope, to be an easy question to answer. I have been search but can't find anything that matches my issue.

I have a Nutone Heat Pump model number FTBF-024KA. The outdoor compressor fan stays on except when I turn the heat on. Didn't notice the issue until it started to cool off, all summer the fan seems to always be running but when I turned the AC off the fan stayed on so I turned the heat on and the fan turns off, and stays off. I let the heat run for about 20 mins and the fan never turned on. But when I turned it off the fan started spinning again.

I don't have the money to call a technician right now and if it's something I can easily do I would like to try.

Thank you.
 

Last edited by PJmax; 10-21-18 at 11:15 AM. Reason: removed hyperlink
  #2  
Old 10-21-18, 06:23 AM
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Hi, good luck, have you read any reviews on Nutone units?
Geo
 
  #3  
Old 10-21-18, 10:16 AM
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No, why? Is there a problem with them?
 
  #4  
Old 10-21-18, 11:24 AM
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Welcome to the forums.

Nortek owns Nutone now. I don't see any information based on what you posted as a model number.
Is it just the condenser fan running and not the compressor too ?
Try posting a few pictures of the controls inside so we can get an idea of what you have.
How-to-insert-images
 
  #5  
Old 10-21-18, 01:50 PM
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Here's a link to four images........ Picture link

The condenser only runs if I turn on the AC or Heat.
Just the fan stays running unless I turn on the heat, then the fan turns off.
 

Last edited by PJmax; 10-21-18 at 05:16 PM. Reason: corrected link
  #6  
Old 10-21-18, 01:59 PM
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Please double check your link as it's not working.
 
  #7  
Old 10-21-18, 04:05 PM
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Yea looks like the forum breaks it, it has to be copied and pasted into the address bar.
 
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Old 10-21-18, 05:29 PM
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You did not post the model number correctly. You have a FT4BF-024KA.

I posted two links below. Download them for your reference.
What you will need to do is to disconnect power to your outside condenser. Disconnect the three fan motor leads. They are orange, blue and black. Using an ohmmeter check from each wire to ground. There should be no continuity measured. If there is..... the motor has a shorted winding and will need to be replaced. Be sure to ID where you remove the wires from.

Wiring diagrams
Installation and service manual
 
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Old 10-22-18, 03:35 PM
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I completed the continuity check on each wire and only thing it displayed was OL, no beeping. I did a check on L1-T1 which did have continuity, and L2-T2 which didn't have continuity unless I pressed the plunger down. I downloaded the manual and diagram to try to figure things out. Which is a little off because I have a Comfort Alert UltraTech Diagnostic that the wires lead to first.

I also found out that I have a module (googled this info after I typed in the right info) inside the unit which I took a picture of https://imgur.com/a/5e59PKS, where the wires lead to, and from the module to the fan.

Any ideas from here? And thanks for the help so far I appreciate it.

Name:  xl.jpg
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Last edited by PJmax; 10-22-18 at 09:55 PM. Reason: added labeled pic
  #10  
Old 10-22-18, 09:56 PM
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I don't see what module you are referring to in your picture.
 
  #11  
Old 10-23-18, 02:47 PM
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The part where it says fan motor is a module that attach to the back of the motor. The motor and the fan are hanging down and the module is attached the inside of the unit. I guess it it's technically a motor part I'm assuming, I read it as module. it's ECM 142R.

King of like this picture (not my actual unit).
 
 

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