How much does it cost to replace a microwave fuse?

Author: Davon Kulas PhD  |  Last update: Tuesday, June 30, 2026

Microwave Fuse Replacement Replacing a microwave fuse costs between $10 and $15. This repair issue is often a simple fix, but if you plan on using an appliance repair person, your costs could increase to $50 to $100.

Is it worth replacing a microwave fuse?

Swapping out a fuse is easy and cheap — definitely a repair that's worth doing. Turntable Not Spinning: If the turntable's stuck, it's likely the motor or roller guide, which is usually inexpensive and easy to replace, so there's no need to get a whole new microwave for this.

Can I replace a microwave fuse myself?

  • I have done it once.
  • Unplug the microwave.
  • Remove cover, trace incoming power wire to fuse block.
  • Simply remove the blown glass fuse and replace with an identical fuse.
  • The one I replaced was just a tubular glass fuse like we used to find in cars, still very common on boats.
  • Replace cover, plug in and go.

What is the most expensive part of a microwave?

The magnetron and the transformer are typically the most expensive parts of a microwave. Replacing a magnetron can cost anywhere between $100 and $200, depending on the make and model of the microwave, and replacing a transformer costs between $100 and $300.

Can a microwave work without a fuse?

When the fuse fails, power is interrupted to the controls of the microwave and it will become nonfunctional.

$2 Microwave Fix - Test/Replace Fuse

Is it worth it to repair 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.

How long do microwaves last?

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.

Why is my microwave not heating?

Misset functions or broken parts are often to blame when your microwave is not heating up. Settings like Control Lock Mode, Demo Mode or power levels set too low may be preventing food from cooking, or more complex causes like a broken magnetron, door switch or high voltage diode could be the source of the problem.

Can you replace a fuse without an electrician?

Replacing a fuse is a relatively easy, do-it-yourself home task that you can tackle with a little information and some electrical home safety savvy. If your home has a fuse box, the best advice is to plan ahead and become familiar with the electrical panel and with the types of fuses it requires.

Why is my microwave suddenly blowing fuses?

Microwave parts like door switches or the magnetron, if defective or wrongly installed, will also cause microwave fuses to continuously blow. A problem with the power socket and electrical wiring may also cause the issue.

Do microwaves need special fuses?

Like many other devices, microwaves have a thermal fuse to keep the appliance from overheating. If this fuse is blown, the microwave won't power on. Microwaves also have a ceramic fuse. This is usually inside the rear panel, near the power cord.

Why is my microwave tripping the fuse?

One of the most common causes of a microwave tripping a circuit breaker is overloading the circuit. Microwaves draw a significant amount of power when operating, and if the circuit is already handling a heavy load, it may not be able to handle the additional demand.

What does a burnt microwave fuse look like?

A blown glass fuse will produce flash burn marks on nearby surfaces, or it will be completely black on the inside.

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.

When should you throw out your microwave?

On average, microwaves last 7-8 years.

What wears out on a microwave?

Turntable and motor

The turntable is the rotating glass plate inside the microwave that ensures even cooking by distributing the microwaves uniformly. The motor responsible for turning the turntable can wear out over time or get clogged with food debris. A malfunctioning turntable can result in unevenly cooked food.

How do you know when a microwave needs replacing?

When to replace the microwave? Common signs that your microwave needs changing
  1. Making funny noises.
  2. Smells like electrical burning.
  3. Isn't cooking food in the usual time or cooking unevenly.
  4. Needs help to work properly – such as a spoon to hold the door closed.
  5. Keypad has stopped working.

What usually fails on a microwave?

If your microwave isn't heating food, it's likely that the magnetron in your appliance is broken. Unfortunately, a burned-out magnetron can't be repaired, it has to be replaced. Other issues that can lead to food not being heated, includes a broken diode or a faulty door switch.

What is the average cost to repair a microwave?

The national average cost to repair a microwave ranges from $100 to $200. Most homeowners spend about $150 to repair or replace the magnetron in a countertop microwave unit. At the low end, you may spend as little as $50 for a minor problem like replacing a fuse.

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 causes microwave fuse to fail?

To prevent microwaves from leaking out, door fuses will blow if the door is not closed properly. Thermal fuses will blow to prevent the microwave from overheating and potentially causing a fire. A fuse will also blow if there is a surge in electricity, which can cause a short circuit.

How expensive is a microwave?

Microwave cost

A microwave costs $100 to $600 on average, depending on the brand, type, features, and size. Microwave oven prices are $50 to $500 for countertop models and $150 to $600 for over-the-range types. Built-in microwave prices are $400 to $2,000.

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