My microwave is 3 1/2 years old...used for heating & defrosting only. It is like new, however, it will not heat. Sears told my husband it was probably the magnetron and it was under warranty and they would send out a repairman from A&E Applian ce Repair. He came out on January 21, 2010 and informed us that it would cost us $60-$90 to give us an estimate of the problem. If the broken part is in deed under warranty, it would cost us $193.00 labor to fix it. The cost of the part is approximately $94.00. This is highway robbery. When a car is under warranty they take care of parts and labor. Usually labor is more expensive than the part that is broken. This defective part is Kenmore/Whirlpool's fault not mine and I do not feel we should pay the labor to fix their shoddy appliance. I am retired, living on a fixed income, purchased this new house so as not to worry about replacing old appliances and now our microwave does not work due to a defective part. I live in a new neighborhood and all the residents have the same appliances and I am telling everyone to be aware of this shoddy product. We declined A&E's service call to fix this microwave. Believe me, I have purchased a lot of products from Sears but I can promise you I have purchased the last one. Shame on you Sears and your lousy warranty!