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    martimar0370's Avatar
    martimar0370 Posts: 2, Reputation: 1
    New Member
     
    #1

    Mar 21, 2007, 06:57 PM
    Changing 2 stage manual thermostat to 1 stage programmable
    All wires match up except the RED wire (previously connected to "R") and the blue wire (previously connected to "C") on an manual white-rodgers thermostat (type 1f58w-58 2 stage heat/cool). On the programmable white-rodgers thermostat (type 1f78-151 single stage) I only have one open terminal and it is "B", but 2 wires (blue and red)w/o a clearly defined terminal. Does the blue wire go to the "B" terminal? Does the red one go anywhere, since there is a red jumper wire connecting "RC and RH"?

    Test Passed
    Fan turns on
    A/C tuned on
    Heat Failed


    Help please...
    martimar0370's Avatar
    martimar0370 Posts: 2, Reputation: 1
    New Member
     
    #2

    Mar 21, 2007, 07:00 PM
    Thermostat wiring on a new programmable unit, only have one terminal for 2 more wires
    All wires match up except the RED wire (previously connected to "R") and the blue wire (previously connected to "C") on an manual white-rodgers thermostat (type 1f58w-58 2 stage heat/cool). On the programmable white-rodgers thermostat (type 1f78-151 single stage) I only have one open terminal and it is "B", but 2 wires (blue and red)w/o a clearly defined terminal. Does the blue wire go to the "B" terminal? Does the red one go anywhere, since there is a red jumper wire connecting "RC and RH"?

    Test Passed
    Fan turns on
    A/C tuned on
    Heat Failed


    Help please...
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
    Ultra Member
     
    #3

    Mar 21, 2007, 07:02 PM
    Hope this helps. https://www.askmehelpdesk.com/heatin...tml#post268211
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
    Ultra Member
     
    #4

    Mar 21, 2007, 07:03 PM
    Hope this helps. https://www.askmehelpdesk.com/heatin...tml#post268211

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