An ice maker, comprising: an ice tray and a refrigeration system, comprising: a compressor having an inlet and an outlet, a condenser having an inlet and an outlet, said condenser inlet in fluid communication with said compressor outlet an expansion device having an inlet and an outlet, said expansion device inlet in fluid communication with said condenser outlet an evaporator, said evaporator having an inlet and an outlet, said evaporator in thermal communication with said ice tray, said inlet in fluid communication with said expansion device outlet said refrigeration system having a first operating mode in which refrigerant flows in a first direction from said expansion device outlet, into said evaporator through said inlet and out of said evaporator through said outlet to said compressor inlet, said refrigeration system having a second operating mode in which refrigerant flows through said evaporator in a direction opposite said first direction from said compressor outlet to said evaporator through said evaporator outlet, wherein refrigerant exiting said evaporator during said second operating mode is returned to said compressor inlet instead of passing through said expansion device and said condenser, and a first valve arrangement operable to place said refrigeration system alternatively in said first operating mode and said second operating mode.ΔΆ.
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