What is the life expectancy of a microwave?

Author: Mrs. Eden Effertz DDS  |  Last update: Sunday, May 11, 2025

With normal usage for an average family and good maintenance, a microwave often lasts for 7 to 8 years. If the microwave is used less frequently by a single person or a couple and is well-maintained, the lifespan can increase to up to 10 years.

How often should you replace a microwave?

A good microwave will last approximately seven years. Of course, there are many variables to consider that can affect this. The more often you use it the shorter the life is likely to be, as is misusing it by putting inappropriate items in it.

Is it OK to use a 20 year old microwave?

Microwaves older than 10 years or with faulty doors should be replaced immediately in order to reduce radiation exposure while you cook.

Is it worth fixing a microwave?

If the cost of repairing a microwave comes close to or exceeds the price of a new one, it might make more financial sense to replace it. However, if the costs of repairing are relatively low and the microwave isn't too old, it could be worth repairing the microwave.

When should you throw out your microwave?

On average, microwaves last 7-8 years.

STOP Using the Microwave | What Cooking in the Microwave Does to Food

How can you tell if a microwave is going bad?

Smoke, sparks, and burning smells.

These are signs of a serious and urgent problem. Stop what you're doing, and turn off and unplug the microwave immediately. There's no going back if you see smoke or sparks, or smell something burning. Your microwave is failing, and it's time for a replacement.

Which microwaves last the longest?

Some microwaves, particularly those from higher-end brands such as Wolf and Viking, tend to last longer, around 10 to 15 years or even more. The lifespan of these microwaves can be further enhanced by repairing them when issues arise.

What usually fails on a microwave?

Understanding the most common parts that can break in a microwave, such as the magnetron, door switches, turntable, control panel, and high voltage components, can help users identify issues early and seek professional repairs or replacements.

What shortens the life of a microwave?

If you don't clean your microwave regularly, accumulated grime and food particles can cause performance issues. This buildup can affect how your microwave heats and operates, leading to inefficiency and potential damage. Make sure to wipe down the inside of your microwave frequently to remove any spills or splatters.

What is the best microwave brand?

As the best microwave overall, we chose the Panasonic Microwave Oven; it combines a 1,200-watt motor with a compact exterior. If you're looking to save money and space, the Commercial Chef Countertop Microwave is the best budget microwave: simple but effective, much like microwave cooking itself.

At what age should a microwave be replaced?

With normal usage for an average family and good maintenance, a microwave often lasts for 7 to 8 years. If the microwave is used less frequently by a single person or a couple and is well-maintained, the lifespan can increase to up to 10 years.

Can a microwave last 30 years?

Most microwaves last about 10 years, depending on their quality and how often you use them. Most microwaves last 1500 to 2000 hours but some low-quality microwaves last only 500 hours.

Can an old microwave trip a breaker?

Microwave's Internal Issue

Components like the magnetron (the device that produces microwaves) or the high voltage capacitor might be malfunctioning, causing a spike in power consumption, and tripping the circuit breaker.

Do more expensive microwaves last longer?

Yours will probably last about 10 years. But when it's time to replace it, you needn't spend much money on a new one. Most inexpensive microwaves are made by only a couple of manufacturers, so it doesn't make much difference which one you buy.

Who makes the best over-the-range microwaves?

Best Over-the-Range Microwaves of 2025
  • GE JNM7196SKSS.
  • KitchenAid KMHS120ESS.
  • LG MHEC1737F.
  • LG MVEF1337F.
  • LG MVEL2033F.
  • LG MVEL2125F.
  • Thermador MU30WSU.
  • Whirlpool WMH78519LZ.

Do all microwaves have filters that need to be cleaned?

"Countertop style microwaves do not have filters that need to be cleaned. The type of microwaves that do need cleaning are the kind that are over your stovetop," she explained. "Only microwaves with a fan that recirculates air back to your kitchen have filters."

How do you know when to replace your microwave?

Age of the Microwave: Microwaves typically last about 7 to 10 years, so if yours is in the 7-year range or older, repairs might only offer a temporary fix, making replacement the better long-term option.

What is the life expectancy of a refrigerator?

The average lifespan of a refrigerator is about 13 years. However, this number can vary depending on the type of refrigerator and how it is maintained. Some types of refrigerators can last as long as 20 years, while others may need to be replaced after as little as five years.

Why we don't throw out old microwaves?

Don't Toss Out Your Broken Microwave

Because of their electrical components, microwave ovens are considered e-waste in some places, and improper disposal will get you some serious fines and/or into a bit of legal trouble.

How do you know when a microwave is unsafe?

If you see smoke or sparks coming from your microwave, stop using it immediately. These are signs of a severe issue, and it's unlikely to be worth repairing at this point. Unplug the device and start looking for a replacement!

Is it worth replacing a magnetron in a microwave?

Replacing a magnetron in a microwave is typically not worth it for countertop models because the cost is often more than buying a new microwave. Replacing a magnetron in expensive built-in microwaves is typically worth it if multiple parts aren't also failing.

What causes a microwave to go dead?

Issues with the door switch, internal fuse, magnetron, diode, high-voltage capacitor, and electronic control board are common causes of microwave malfunctions, requiring repair or replacement by a technician.

Can a microwave last 20 years?

On average, a microwave can last anywhere from 5 to 10 years with proper maintenance. However, many people may have microwaves that have surpassed that and are still working. While it may seem like a great cost-saving measure to keep using an old microwave, it may not be the best option in the long run.

Is Magic Chef a good microwave?

Customers say the Magic Chef countertop microwave offers great value for its price, with a spacious interior and powerful heating capabilities. Many appreciate the easy-to-use controls, including one-touch cooking options, while the gray interior is noted for its cleanliness.

What is the best wattage for a microwave?

The ideal wattage for most microwave recipes is 1,000 watts for versatility in defrosting, reheating and cooking.

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