Just got another form letter from Whirlpool offering an extended warranty of one year for $134 and if purchased would not take effect for two months.
Our Whirlpool range is history now replaced by a new Frigidaire range which my wife likes much better. For peace of mind she also bought an extended 5 year warranty beyond the normal one year warranty for $150. Whirlpool offers such a warranty for about $350.
We had checked the big box stores with similar offers but bought from a large local store that only sells appliances.
I had crossed my fingers that the new range would not trip circuit breakers but wife has used it to bake several times without seeing a problem.
Repairman had blamed bad breakers and I had to hire an electrician to check them out. Cost less to hire the electrician than the repairman to just come out.
Apparently you are lucky to get more than 5 years out of any new household appliance. Complex electronics and government insistence on better energy usage have created lemons. The cheap range supplied by our builder lasted over thirty five years, first replacement seven years and latest two years.