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    taylor010's Avatar
    taylor010 Posts: 11, Reputation: 1
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    #1

    Apr 6, 2009, 05:47 AM
    Central air system won't blow warm air
    I have a central air system that won't blow warm air. I'm wondering if I need a new thermostat.

    Right now, I have a White Rodgers 1F86-344. The fan works when in the 'on' position, but not in the 'auto' position. Also, 'cool' works, but not 'heat.' When I turn up the temp, I hear the click, but then nothing happens.

    Also, I just so happened to have a Braeburn model 3000, still in the box. Is it compatible with the White Rodgers?

    I am grateful for any help I can get.

    David
    Little Rock
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #2

    Apr 6, 2009, 05:55 AM

    What brand is your system? Is it a heat pump or a gas furnace?
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    taylor010 Posts: 11, Reputation: 1
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    #3

    Apr 6, 2009, 06:08 AM

    It's an American Standard YCY036F1HOAC.
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #4

    Apr 6, 2009, 06:11 AM

    OK, do you have gas heat? Or elecric? Is the click form the t-stat or the furnace area?
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    taylor010 Posts: 11, Reputation: 1
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    #5

    Apr 6, 2009, 06:19 AM

    Thank you so much for your patience. I know mortgages, not AC stuff.

    The heat is gas. The click is coming from the tstat. If I put it on 'cool' it blows. When I switch it over to heat, it cuts off after a couple of minutes. It was working fine yesterday.
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    Joshdta Posts: 2,549, Reputation: 45
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    #6

    Apr 6, 2009, 06:30 AM

    Ok if you would like I should be here for a few I can help you to find the problem. Can you get to your furnace? If so turn it on at the t-stat the go back and take the door off the furnace at the bottom there should be a flashing light in a sight glass. This will tell us the fault code for your furnace problem
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    Joshdta Posts: 2,549, Reputation: 45
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    #7

    Apr 6, 2009, 06:32 AM
    Also you said on heat it will blow for a few minutes then shut off? Is it warm are or just avrage air?
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    taylor010 Posts: 11, Reputation: 1
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    #8

    Apr 6, 2009, 06:41 AM
    The air is not warm. I'm going to go look for the door to take off
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #9

    Apr 6, 2009, 06:46 AM

    Ok let me know what you find. Also does your furnace vent with plastic or metal pipe?
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    taylor010 Posts: 11, Reputation: 1
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    #10

    Apr 6, 2009, 06:50 AM

    I guess the furnace is built into the outside unit. There's metal piping.

    There's also a little exhaust looking thing that is blowing slowly. No fan, though unless I turn fan on on tstat
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    Joshdta Posts: 2,549, Reputation: 45
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    #11

    Apr 6, 2009, 06:55 AM

    Ok if you turn the power switch off usually on the side of the furnace, like a light switch then wait 10 seconds then back on you can watch and see what is happing. The little exoust blower should come on first. Then you should see a red glow or hear a sparking noise for the flame. Then the flame should light. Then after about 1 min the blower should come on. I need to see what step is not working. Did you see a flashing light of any sort?
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    taylor010 Posts: 11, Reputation: 1
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    #12

    Apr 6, 2009, 06:57 AM

    I'm not even sure which door to take off. Do you have schematics for my model?
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    Joshdta Posts: 2,549, Reputation: 45
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    #13

    Apr 6, 2009, 07:06 AM

    There should be 2 doors the upper where the little exoust blower is and the bottom doo should have a control board and blower motor. The schematics should be on the back of the door I am looking up you model now
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    Joshdta Posts: 2,549, Reputation: 45
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    #14

    Apr 6, 2009, 07:10 AM

    So far have not been able to locate you model number yet is that the indoor or the outdoor number?
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    taylor010 Posts: 11, Reputation: 1
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    #15

    Apr 6, 2009, 07:15 AM

    That's the number on the outside of the unit
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    Joshdta Posts: 2,549, Reputation: 45
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    #16

    Apr 6, 2009, 07:17 AM

    Can you get me the number for the indoor unit?
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    taylor010 Posts: 11, Reputation: 1
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    #17

    Apr 6, 2009, 07:25 AM
    This is the number on the outside, labeled 'model number.' Is there another one somewhere?
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    Joshdta Posts: 2,549, Reputation: 45
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    #18

    Apr 6, 2009, 07:31 AM

    Sorry, I am still trying to locate anything on the number you gave me. Did you have to take a door off the inside unit to see the exoust blower?
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    taylor010 Posts: 11, Reputation: 1
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    #19

    Apr 6, 2009, 07:52 AM

    There is no inside unit. It's a combo with the furnace inside the unit
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    taylor010 Posts: 11, Reputation: 1
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    #20

    Apr 6, 2009, 08:32 AM
    Well, thanks anyway.
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