Product review (5 stars): Solved my problem
Following the supplied instructions, this product was easy to install and completely solved the problem of my Frigidaire refrigerator not cooling due to a burned out defrost heater. By contacting the merchant before ordering I was able to confirm that this unit would fit my 14 year old refrigerator--and it did.  I am completely satisfied with the price and and service I got on this purchase and will order again from the merchant if they have the part I need.