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  1. #1
    Fitter of road/ironman TriEngineer's Avatar
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    Aug 2004
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    So what's the deal with furnaces and humidifiers?

    This is probably the best place to ask the questions but I wanted to see if anyone mmight be able to give me a hand with sorting out this sort of thing, as I really have no experience with it, no father to teach, never had to learn it when I was overseas, lived in apts for my "informative years".

    Anyway, the cycle for the furnace seems to be on the highside, it comes on, for honestly less than three minutes and then shut off. I have read teh manual for the control box cover to cover and hooked up the connectors correctly but I don't think they are supposed to do that many load cycles in one hour are they? The air that comes out barely gets hot before it turns itself back off again....*I iz confuzzled*

    Any help would be appreciated.
    Tri

    2006 Norco CRR Ultegra
    2007 Jamis Quest
    2007 Jamis "Riding Couch" Commuter
    2010 Cervelo P3
    2012 Cervelo R5 VWD

  2. #2
    Senior Member 66aldo's Avatar
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    Jul 2007
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    Niagara Falls, Ontario, Canada
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    1. late 70s 10 speed Italian custom racer; 2. older (1960s?) Grampa 3 speed "cruiser"; 3. (80s?) Basso TT frameset; 4. old Supercycle "breakaway" bike (undergoing surgery as we speak)
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    First of all ... HAPPY EASTER!

    Hmmmmm ... Did you just install a new humidifier, or one of them new-fangled thermostats? I don't have any experience with the humidifiers connected to furnaces, other than making sure that there is running water there and the sponge thingie isn't calcified to solidity.

    As for the thermostat, when I installed a new digital one at my place, I DO remember that it didn't work right away. I actually shut the furnace off (separate switch near my furnace), turned the main breaker to the house off too (I'm sure sure why ... my thinking was to "reset" everything?) and then turn the furnace ON and jack up the temperature on the thermostat until the furnace came on.

    I think you said that you double-checked your wiring but maybe triple-check it again.

    Good luck!

  3. #3
    Pwnerer Wordbiker's Avatar
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    My guess is the thermostat is placed too close to a furnace vent.
    Quote Originally Posted by ahsposo View Post
    Ski, bike and wish I was gay.

  4. #4
    Bicyclist
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    Oct 2007
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    Gas furnace? I had one that malfunctioned in a similar way, very short cycle times. I brought in a furnace guy because I didn't want to fool with a gas furnace and risk an explosion, even though they are fairlly simple pieces of equpment. Turned out to be a malfunctioning saftey pressure valve or some similar sort of thing that had to be replaced, would have never found it on my own.

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