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Food for thought...

When to Replace Your Microwave
Of course, not all microwave malfunctions were meant to be fixed. The low cost of a new microwave combined with the potentially stacking cost of replacement parts and repairs can often make it more practical to just buy a new one. The microwave is the only necessary home appliance that follows this rule, but it’s important to know when you can save time and money by making the right move.

Microwave is Over 6 Years Old
The first indicator that your microwave is better off replaced is the five-year lifespan. Microwaves can last a long time, but they have the shortest lifespan of household appliances. If your microwave is over 6 years and especially if it’s approaching 10 years old, you’re likely better off with a new microwave. Upgrade your features and don’t worry about keeping a dinosaur running.

Multiple Stacking Problems
Another indication that you should replace your microwave instead of replacing a part is if you have more than one problem to tackle. The more issues stack up. the more repairing there is to do. The cost of replacement parts will also begin to stack along with the hours necessary to fully repair your microwave. In addition, stacking technical problems usually indicates that there are more problems to come. Systematic failure is the symptom of an old, badly damaged, or very poorly designed microwave.

The Magnetron is Damaged or Burned
Finally, there’s the magnetron. No matter how new your microwave or if there’s only one problem, if the magnetron is out then you might as well replace the entire appliance. The magnetron is the heart of a microwave that actually makes the micro-waves. Replacing it is about equal to the cost of buying a whole new microwave, sometimes even greater. If the magnetron is busted, microwave replacement is a part of your future.