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    rak1959's Avatar
    rak1959 Posts: 2, Reputation: 1
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    #1

    Jan 9, 2013, 02:14 PM
    How do I add or connect thermostat wiring so my 1984 coleman heat only furnace will o
    How can I connect or wire my new thermostat for fan on to my 1984 coleman heat only mobile home furnace? It is currently not wired to do so , and I don't think the wiring is in place to do so.

    Thank you for any help
    Bob
    Grady White's Avatar
    Grady White Posts: 1,417, Reputation: 59
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    #2

    Jan 9, 2013, 03:28 PM
    You may not be able to do so without replacing the entire control package.
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #3

    Jan 9, 2013, 04:30 PM
    Is there a switch in the furnace to manually kick the blower on? If so, I believe Grady is correct. The older units were not set up to have a fan on option through the thermostat. But if you have the switch in the furnace, you can always just use that.
    Grady White's Avatar
    Grady White Posts: 1,417, Reputation: 59
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    #4

    Jan 9, 2013, 08:41 PM
    If I remember Coleman properly, I don't think they use a Honeywell fan/limit and if memory serves me right, depending upon the control box, they might have a rocker switch which when turned to the "fan on" or "fan" positiion, kills power to the burner. Pictures would be a huge help.
    rak1959's Avatar
    rak1959 Posts: 2, Reputation: 1
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    #5

    Jan 10, 2013, 08:06 AM
    Thank you for responding to my question, there is only a control box cut out switch, can I install a blower switch on the leads powering the blower motor?
    Grady White's Avatar
    Grady White Posts: 1,417, Reputation: 59
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    #6

    Jan 10, 2013, 06:36 PM
    They already go through a switch of some sort (most likely temperature operated). I'd have to see a wiring diagram or at least pictures of the wiring to be able to tell you where you could put the switch.
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