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    WillyBill's Avatar
    WillyBill Posts: 5, Reputation: 1
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    #1

    Mar 17, 2010, 12:34 PM
    How do I check the sequencer in my intertherm furnace?
    My Interthrem electric furnace will not run in automatic;I've changed the sequencer per suggestions,but to no avail what can I do?
    WillyBill's Avatar
    WillyBill Posts: 5, Reputation: 1
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    #2

    Mar 17, 2010, 12:43 PM
    How do I check the sequencer in my intertherm furnace?
    I have an Intertherm furnace that will not run in automatic. I've changed the sequencer per instructions and also the t,stat. And it still will not run... help please. I am a hands on type of guy.
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #3

    Mar 17, 2010, 03:21 PM
    You will need a meter,, check power going in and across from the same post check for power coming out,, be careful 230 V bits pretty hard
    WillyBill's Avatar
    WillyBill Posts: 5, Reputation: 1
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    #4

    Mar 18, 2010, 09:09 AM
    My furnace will not work after changing sequencer and t.stat,per suggestions,any help
    I have a Intertherm model#FEH-012HA heat only furnace,I disabled the t.stat to check the sequencer(the fan and the strips stayed on)I did this by suggestion. I also changed the t.stat and still the fan will not run in auto.(I left this part out)what do I do now? I'm no electrician but I am a hands on guy and enjoy learning new things, Thank You for any help.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #5

    Mar 18, 2010, 10:12 AM
    Quote Originally Posted by WillyBill View Post
    I have a Intertherm model#FEH-012HA heat only furnace,I disabled the t.stat to check the sequencer(the fan and the strips stayed on)I did this by suggestion. I also changed the t.stat and still the fan will not run in auto.(I left this part out)what do I do now? I'm no electrician but I am a hands on guy and enjoy learning new things, Thank You for any help.
    The thermostat has nothing to do with the FAN in AUTO mode since this function is controlled by the heat sequencer in most units. In a heat only application only two wires are used and that is the red and white going to the R-RED and W-WHITE on the thermostat.

    As a guess on my part it seems like you might have a sequencer that is not functioning properly OR something is wired wrong.
    WillyBill's Avatar
    WillyBill Posts: 5, Reputation: 1
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    #6

    Mar 18, 2010, 03:15 PM

    To HVAC 1000, thanks I'll go a little slower. You were most helpful; Thanks again
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #7

    Mar 18, 2010, 09:30 PM
    No problem. Sometimes these things need to be traced down in some logical order or the problem will remain.
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