My built-in LG microwave oven has failed 6 times in 3 years. Each time, the repairman comes to my house, announces he will have to order the part, then 2-3 weeks later, the oven gets fixed- for a time.
Last time, the oven would not turn off; after three visits, the oven would go on and off but it wouldn't heat anything. For a year, I have been asking LG to replace the oven - they keep telling me "there is nothing we can do". I filed a complaint with the Louisiana BBB (that being LG's USA headquarters). LG's response was that they warranty their appliances for 1 year - that is it.
BBB says they cannot ask LG to change their repair policies.
Unfortunately, my state has no lemon law regarding appliances. I believe that this oven model is defective and should be recalled - replaced by LG by a product of better quality.
Review about: Lg Electronics Microwave.