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    BrandongMTL's Avatar
    BrandongMTL Posts: 12, Reputation: 1
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    #1

    Oct 22, 2008, 08:03 AM
    Why did furnace come on instead of heat pump.
    I turned on the heat pump as it was getting cold in the house, inside temp 62. I went to the thermostat change the setting from off to HEAT. Increased the temp to 69.

    The thermostat changed setting to emergency heat ,and the gas furnace came on?? :confused:

    When the temp in the house reached 69 the heat pump worked fine.

    Why did this happen?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Oct 22, 2008, 12:09 PM
    There was to wide a spread between the indoor temp and the setting for heat causing the furnace to come on instead of the heat pump.
    BrandongMTL's Avatar
    BrandongMTL Posts: 12, Reputation: 1
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    #3

    Oct 22, 2008, 02:05 PM

    Is this normal?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #4

    Oct 22, 2008, 04:33 PM
    I cannot say if it is normal or not. It depends upon the settings of the thermostat. As long as the heat pump is now working As it should it should be OK.
    BrandongMTL's Avatar
    BrandongMTL Posts: 12, Reputation: 1
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    #5

    Oct 23, 2008, 01:46 PM

    Thank you.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #6

    Oct 23, 2008, 02:35 PM
    Your welcome
    BrandongMTL's Avatar
    BrandongMTL Posts: 12, Reputation: 1
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    #7

    Oct 29, 2008, 12:35 PM

    I have another problem.

    Why is the Furnace staying on when the temp is met? Stayed on for 45 min.

    Demand met so heat pump should keep the temp in the house. Right?

    That seems long to me.

    I have lots to learn about heat pumps.

    I thought that furnce would only work when its cold (below) And I would use the heat pump the rest of the time
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #8

    Oct 29, 2008, 02:42 PM
    Heat pumps do run for a long time and eventually should shut off at the design temperature. I would also like to addd that it is posible your heat pump is experiencing a problem. If conditions persist I would contact a local HVAC dealer to have them check the unit for proper operation.
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