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Go to the outdoor unit in the heat mode and see how hot the large copper pipe is going to the outdoor unit, this is the hot gas that rejects heat into your home, if this is not at least 130F better check the refrigerant level, Heat pumps maintain a temperature better than bringing a room up to temperature so they do tend to operate often, the colder it ...


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Heat pumps do not need a heat strip unless the outdoor temperatures dip well below 40F. Utility financed heat pumps are required to have an outdoor thermostat installed to prohibit the heat strips from energizing unless the ambient temperature is 40F or below. This is the point at which heat pumps performance begins to degrade. Defrost modes require the ...


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In the heat mode the larger copper pipe going to the AC unit outdoors should get very hot, if not then the refrigerant might be low or the reversing valve which switches modes from Cool to Heat may be bypassing. the fact it shuts down tells me its getting overheated likely due to low refrigerant level.


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If the outdoor fan comes on and the compressor does not, you need a "hard start kit" this is either a potential relay and start capacitor as in my diagram or a PTC thermistor solid state start assist device that piggy backs onto the run capacitor. This is assuming your compressor is cold to the touch and has not been starting. If your compressor has been ...



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