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    banger's Avatar
    banger Posts: 15, Reputation: 1
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    #1

    Apr 25, 2009, 11:48 AM
    Honeywell rth230b thermostat
    My thermostat works fine for the furnace but the air conditioner comes on outside but it don't blow or the fan is not working I put this thermostat in in fall of last year so didn't use the air
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    Joshdta Posts: 2,549, Reputation: 45
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    #2

    Apr 25, 2009, 11:53 AM

    Did you put a jumper from rh to rc at the t-stat?
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    #3

    Apr 25, 2009, 11:54 AM
    You say the outdoor unit comes on but not the indoor blower?
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    banger Posts: 15, Reputation: 1
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    #4

    Apr 25, 2009, 11:55 AM
    Yes the jumper was already there
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    #5

    Apr 25, 2009, 11:56 AM
    An yes the unit outside comes on it just don't blow inside
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    #6

    Apr 25, 2009, 11:57 AM

    OK sounds like you have a bad cooling fan relay. At you furnace. Does your furnace have a control board in the blower compartment?
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    #7

    Apr 25, 2009, 11:58 AM
    I couldn't tell you I am not familier with heating an air
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    #8

    Apr 25, 2009, 12:00 PM

    OK, no problem. Do you have a volt meter of any kind?
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    #9

    Apr 25, 2009, 12:01 PM
    The guy that works on my heating an air told me last night about the yellow an green wire to the thermastst turns the fan reley on he's working now I am just trying to figure it out myself keep the wife happy lol
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    banger Posts: 15, Reputation: 1
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    #10

    Apr 25, 2009, 12:03 PM
    Well I did have 1 but it got broke by my daughter
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    #11

    Apr 25, 2009, 12:06 PM

    Well if you turn your fan switch to on does the fan come on?
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    #12

    Apr 25, 2009, 12:09 PM
    I know I had it wired up right according to the diagram
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    #13

    Apr 25, 2009, 12:09 PM
    I will go check an see if fan comes on
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    #14

    Apr 25, 2009, 12:13 PM

    OK sounds like it is wired right. I think the problem is going to be at your furnace
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    #15

    Apr 25, 2009, 12:15 PM
    With heat an cool off the fan does not come on with it turned on to fan
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    #16

    Apr 25, 2009, 12:18 PM

    The you either have a bad fan relay at your furnace. Or the green wire is broke or not touching at the t-stat. I would check the green wire at the stat first
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    #17

    Apr 25, 2009, 12:19 PM
    OK I will do that
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    #18

    Apr 25, 2009, 12:23 PM

    If that is not the problem we can go from there.
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    #19

    Apr 25, 2009, 12:25 PM
    Well it must be the fan relay unless like you said the wire is broke somewhere where I can't see it
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    #20

    Apr 25, 2009, 12:26 PM
    But the furnace worked all winter long
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