Have issue with pressure switch

Discussion in 'HVAC' started by lk2121, Feb 26, 2013.

  1. Feb 26, 2013 #1

    lk2121

    lk2121

    lk2121

    Member

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    Hello,
    Have problem with comfortmaker furnace with pressure switch.
    Burner turn on and shut off continously and found water in the pressure switch line comming from the induced fan. I cleaned line put it back and everything working normally and after 2 days later I noticed same problem. Then I found water again in the pressure switch line. Checked in the morning found water again. I do not understand where that water comming from. Induced fan is hot and there should not be any mositure in it. And pressure switch has only one line comming from the induced fan. Someone could explain what happened on my furnace and how to fix?

    Thanks
     
  2. Feb 26, 2013 #2

    nealtw

    nealtw

    nealtw

    Contractor retired

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    Just a thought. Hot air can hold a lot of water, perhaps it condences when the furnice is not running.
     

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