Indoor fan keeps running

Discussion in 'HVAC' started by spider, Jul 20, 2013.

  1. Jul 20, 2013 #1

    spider

    spider

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    Hi. I have an older roof top unit. My blower Moter will not shut off. Tstat good and I changed the fan relay. Can you tell me the next step thx.
     
  2. Jul 23, 2013 #2

    nealtw

    nealtw

    nealtw

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    just bumped this forward incase this was missed. Welcome to the site.
     
  3. Jul 23, 2013 #3

    Fireguy5674

    Fireguy5674

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    I think we need a little more detailed info to make a constructive suggestion.
     
  4. Jul 23, 2013 #4

    Admin

    Admin

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    What's the make and model?
     
  5. Jul 23, 2013 #5

    kok328

    kok328

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    You will need a volt/ohm meter to perform most of the troubleshooting checklist.
    Welcome to the site.
    Please get back to us with the details, we'd love to help you.
     
  6. Jul 23, 2013 #6

    spider

    spider

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    Thx guys you all rock it's a old Frazier Johnson lol. No info.
     
  7. Jul 23, 2013 #7

    spider

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    I'm thinkn the high limit fan combo switch I guess that's all it could be.. Hmmm. I'm not getting 24 volts to fan relay like it should couse it's not on ..... I am getting 120 out of relay and to combo then combo to fan
     
    Last edited: Jul 23, 2013

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