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Thread: Honeywell RTH6350D 5-2 Day programmable thermostat

  1. #1
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    Honeywell RTH6350D 5-2 Day programmable thermostat

    Honeywell RTH6350D 5-2 Day programmable thermostat
    If you have a question about wiring, installing or trouble shooting the Honeywell RTH6350D programmable thermostat post your question in this thread. If you are installing a new Honeywell RTH6350D thermostat check our how to change a thermostat thread.



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    The Honeywell thermostat model RTH6350D has two schedules. One for the weekdays and one for the weekend. 4 schedules can be setup for each group.




    Below are some of the features of the RTH6350D:

    • Auto change from heat to cool (Use this feature in climates where both air conditioning and heating are used on the same day)
    • Backlit Display
    • Smart Response Technology - This feature allows the thermostat to “learn” how long the furnace and air conditioner take to reach programmed temperature settings, so the temperature is reached at the time you set.

    The Honeywell RTH6350D is compatible with:
    • ​Single stage heat and cool systems
    • Multistage heat and cool systems
    • Heat Pump without Backup Heat
    • Heat Pump with Backup Heat
    • Heat only system
    • Cool only systems

    * Does not work with electric baseboard heat (120-240V)
    *Call Honeywell at 1-800-468-1502 for wiring assistance before returning the thermostat to the store.


    Manual
    customer.honeywell.com/resources/techlit/TechLitDocuments/69-0000s/69-2416ES.pdf

    *The Honeywell RTH6350D is provided with a 1 year warranty
    *Can be purchased at Home Depot

  2. #2
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    Installation / Wiring Problem - Please help!

    I recently purchased this thermostat to replace an older Honeywell (golden/brown box) in an apartment I just moved into. The unit features forced air and a heat pump. This was my first time installing a thermostat, and although I believe I followed the provided instructions, I am running into the following problems: when I activate "Cool," I get heat. When I activate "Heat," I get nothing. The unit will turn the fan on though.

    I've provided some photos of the wiring I did below. If anybody can please tell me how to set things right, it'd be incredibly appreciated.

    Click image for larger version. 

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    Additional notes:

    - The wires were arranged in a circular set of connections in the older unit seen in the fourth picture. Specifically, the yellow wire looped around a Y connection before terminating in a W connection in the older unit. None of the scenarios presented in the instruction manual (near as I could tell anyway) accounted for this scenario.

    - The green, white and red wires were connected to G, O and R respectively in the older unit.

    Thank you for your help!

  3. #3
    HVAC Thermostat Specialist

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    In the set up for the Honeywell RTH6350D what are your settings for function 1 and 2?
    Function 1 should be set to 1 (Heat pump without backup heat)
    Function 2 should be set to 1 if your heat pump reversing valve energizes for cooling. (most heat pump units reversing valves energize for cooling) If your system runs backwards with function 1 set to 1 change function 1 to 2 (reversing valve energizes for heat)

    A link to the Honeywell RTH6350D manual is in post #1 of this thread


  4. #4
    Junior Member

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    I have been trying to replace my old Rheem 41-20804-15 thermostat with a Honeywell RTH6350D one. So far I have had no luck. I have a Goodman Heat Pump ( GSH130301BA ) along with a Goodman Air Handler (ARUF303016BA). I have hooked the wires up according to the manual, and cannot get anything to work. No fan, no ac, no heat. Please help!

  5. #5
    HVAC Thermostat Specialist

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    Quote Originally Posted by ashjo84 View Post
    I have been trying to replace my old Rheem 41-20804-15 thermostat with a Honeywell RTH6350D one. So far I have had no luck. I have a Goodman Heat Pump ( GSH130301BA ) along with a Goodman Air Handler (ARUF303016BA). I have hooked the wires up according to the manual, and cannot get anything to work. No fan, no ac, no heat. Please help!
    Did you turn the breaker off to the indoor air handling unit before you installed the new thermostat?
    Make sure the doors are installed on the indoor air handling unit.
    Can you tell us where the wires were terminated on the old thermostat (wire colors and terminal R, Y, O, W and G)?
    Can you tell us where the wire are connected to on the new thermostat (wire colors and terminal R, Y, O, W and G)?

  6. #6
    Junior Member

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    Did you turn the breaker off to the indoor air handling unit before you installed the new RTH thermostat?

    - I turned off the main breaker to the house before installing.

    Make sure the doors are installed on the indoor air handling unit.



    - Not quite sure what this means, sorry. The indoor air handling unit has not been messed with.

    The Rheem had R, G, O, Y, same wire wrapped around W2 and E, and then X.
    On the new Honeywell, I have R in R, with a jumper between R and RC, Y in Y, O in O/B, G in G, and W2 in AUX/E. I have the X taped off and not attached.

    I should also note that before I changed (attempted to change) the thermostat, everything worked fine. (Hitting myself for even messing with it....)

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