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  1. #1
    Join Date
    Feb 2011
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    Lennox heat pump and thermostat

    I was told that I needed to buy a lennox thermostat for a lennox heat pump but can't I use a honeywell that works on heat pumps? Also the reason I need a new thermostat is because the first lennox thermostat started smoking doesn't seem to me that it would just be the thermostat is bad shouldn't they check something else to see why the thermostat was smoking in the first place... Thanks in advance

  2. #2
    Join Date
    May 2004
    Location
    Frederick, MD
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    Something is

    definitely wrong. You need a qualified service tech to look at your system.

  3. #3
    Join Date
    Sep 2002
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    Sounds like someone miswired the system or the transformer is putting out more than 30v.

    The higher end honeywells can operate heatpumps.
    I've discovered a natural law - everything gets progressively worse. Things only break down and become depleted. Life isn't worth living and everything is going to hell.

    Death is the messiah. Everything else is irrelevant and arbitrary.

  4. #4
    Join Date
    Feb 2011
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    Quote Originally Posted by amd View Post
    Sounds like someone miswired the system or the transformer is putting out more than 30v.

    The higher end honeywells can operate heatpumps.

    thanks thats what i figured

    So just to be clear as long as the Honeywell thermostat says it will work with heatpumps it will work with Lennox Heatpumps?

  5. #5
    Join Date
    Dec 2006
    Location
    Litchfield,Il
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    120vac + 24vac thermostat = Smoke

    I hope the company that installed your system is insured.
    If your not getting the results you desire then change. People change from either desperation or inspiration.

  6. #6
    Join Date
    Sep 2002
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    Most lennox heatpumps utilize standard control signals - nothing fancy.

    For a heatpump with aux heat, you need a 2-heat/2cool stat.

    For a 2-stage heatpump with aux heat, you need a 3-heat/2-cool stat.

    For dual fuel, you need a specialized t-stat - honeywell makes a few dual fuel models.

    Your contractor should be able to select the correct model.
    I've discovered a natural law - everything gets progressively worse. Things only break down and become depleted. Life isn't worth living and everything is going to hell.

    Death is the messiah. Everything else is irrelevant and arbitrary.

  7. #7
    Join Date
    Feb 2011
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    thanks everyone for the input... fyi this is not my system I was just talking to a friend who was having trouble and from what they told me that the contractor told them it just didn't make sence to me I am very new to the industry so I thought i'd ask around before I told them their contractor is no good... still going to ask the seinior techs at my work on monday(we are a lennox dealer) before I talk to my friends again but I think who ever they are using don't know what they are doing... Thanks again for all the help

  8. #8
    Join Date
    Jul 2010
    Location
    nebraska
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    Ask your friend how old the thermostat is. Warranty is 5 years on them.

  9. #9
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    Feb 2011
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    Quote Originally Posted by martyinlincoln View Post
    Ask your friend how old the thermostat is. Warranty is 5 years on them.

    they told me everything is out of warranty? even if it was only a couple years old if a bad transformer is the problem warranty wouldn't cover that anyway would it???

  10. #10
    Join Date
    Jul 2010
    Location
    nebraska
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    Depends. Say a mouse shorted 24v and 240v at the contactor or customer doesn't change the filter and the ice ball coil ends up shorting out the furnace control board then that's not a defective componet so the damage would not be a warranty claim. A defective part takes out a thermostat or the stat just up and dies then they're covered.

  11. #11
    Join Date
    Dec 2009
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    maroon lazyboy
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    Quote Originally Posted by RobFarns View Post
    thanks everyone for the input... I am very new to the industry so I thought i'd ask around before I told them their contractor is no good... still going to ask the senior techs at my work on monday(we are a lennox dealer)
    Asking the senior tech is a good idea.... Especially since you are a Lennox dealer.
    Welcome to this site, you will learn much here...

  12. #12
    Join Date
    Dec 2009
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    maroon lazyboy
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    are you working for Ashland Comfort Control, or Welsh Plumbing and Heating Supply?

  13. #13
    Join Date
    Feb 2011
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    Quote Originally Posted by knave View Post
    are you working for Ashland Comfort Control, or Welsh Plumbing and Heating Supply?

    I don't work in Ashland

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