Can I use any 20 amp fuse for my microwave?

Asked By: Lerma Isenbort | Last Updated: 6th March, 2020
Category: home and garden home appliances
4.1/5 (6,149 Views . 39 Votes)
Answer Lisa, Yes, the 20 amp fuse WB2X3910 would be the be the correct fuse for your GE microwave.

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Also to know is, what amp fuse do I need for a microwave?

Plugs for appliances rated between about 700 watts and 3000 watts (the maximum rating of a wall socket) should be fitted with a 13-amp fuse (coloured brown). For example: 13A Fuse – Washing machine, dishwasher, microwave, kettle, toaster, iron.

Similarly, can I replace a fuse with a higher amp? Never replace a blown fuse with a higher-amp fuse. Always replace the fuse with one with the specified amp rating. You may install the next-smaller-rated fuse to get you by in a pinch until you can purchase a replacement.

In this way, what kind of fuse does a microwave use?

This is a 20-amp fuse, and is used to power your microwave. If the touch pad on the microwave becomes unresponsive, the microwave produces little to no heat, or the appliance simply does not turn on, it could mean that your fuse is at fault and needs to be replaced.

Can I replace a 30 amp fuse with a 20 amp fuse?

Do not use a fuse with a lower rating-- don't put a 20 amp fues in a 30 amp circuit--because it probably will blow prematurely. Conversely replacing a 20-amp fuse with one rated at 30 amps is dangerous because it may not blow soon enough and damage an electrical component or start a wiring fire.

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What happens if you use the wrong fuse in a car?

If you use a fuse with the wrong amperage, the fuse won't blow as intended, damaging the circuit and resulting in a much larger repair bill. Rather than risk blowing the circuit, take the car to a repair shop to determine what is causing the fuse to repeatedly blow.

What are the 3 types of fuses?

The low voltage fuses are divided into five types such as rewirable, cartridge, drop out, striker and switch fuses.
  • Image Source. Rewirable Fuses.
  • Image Source. Cartridge type Fuses.
  • Image Source. D-type Cartridge Fuse.
  • Image Source. Link Type Fuse.
  • Image Source. Blade and Bolted type Fuses.
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Can I use a 5a fuse instead of 3a?

A 3A fuse shall eventually overheat and blow up (a time will depend on the characteristcs of the fuse -there are “slow” fuses that tolerate transient o A 5A fuse will not blow up in such situation, thus your device is in danger,something else may overheat and die, that would be waaay harder to replace.

Can I use a 13a fuse instead of a 3a?

These plugs can handle a maximum of 13A of current and are marked as such. Many people assume that this means a 13A fuse should be used in this appliance which is a mistake. The plug is fitted with a 13A fuse. As the power rating is so low, we can quickly see that the fuse is too high and has to be changed to a 3A one.

Can I use a 13a fuse instead of 10a?


The 13A fuse in place of a 10A fuse wouldn't directly cause any problem - but then, if there's a problem with the appliance you're using, or if you plug in too many things and the current goes over 10A but under 13A, then under the new fuse the extension lead will keep working whereas the old fuse would have blown.

How many watts can a 5 amp fuse take?

Multiply the voltage by the amps and this will give you the maximum number of Watts you can place on the circuit. If your lighting circuit at home is protected by a typical 5 amp fuse you can multiply this by the voltage to get 1150 Watts.

Does a microwave need a 20 amp circuit?

The microwave oven needs a dedicated 20-amp, the 120/125-volt circuit to feed it. This will require 12/2 NM wire with a ground. Although it's not uncommon to see microwave ovens plugged into standard appliance outlets, larger microwave ovens can draw as much as 1500 watts, and these need their own dedicated circuits.

How much is a fuse for a microwave?

A lot depends on what type of microwave oven you have and what is wrong with it. Fixing a fuse, for instance can cost as little as $75 (including parts and labor) and is probably worth it.

How many fuses are in a microwave?

Your microwave may have two types of fuse. The line fuses are usually familiar ceramic tubes, about 1¼ inches (3 cm) long. The thermal cutoff fuses are typically squat black cylinders with two prongs on the same side. Their exact location depends on your model, but check behind the control panel.

How do you know if your microwave fuse is blown?


It's easy to tell if a glass fuse is blown; it will show scorch marks, and the filament will be melted. To check a ceramic fuse, use an ohmmeter or continuity tester. With an ohmmeter or multimeter, you should see a reading close to zero ohms if the fuse is intact, or infinite if it's blown.

Are microwaves worth repairing?

Repair or Replace Microwave
A replacement appliance costs about $100 and should work for at least seven to 10 years. If your microwave is relatively new and the repair costs less than replacing it, the fix is worth it. In general, the problems worth fixing include: No light when the door opens or while cooking.

Can I use a glass fuse in a microwave?

Along with glass fuses, ceramic fuses are among the most commonly used fuses in household electrical appliances. This includes microwave ovens. A microwave oven is prone to short-circuiting caused by severe voltage fluctuations.

What size breaker do I need for a 1000 watt microwave?

Looks like a typical "1000 watt" microwave will require about 1700 watts of wall power. Dividing by 120 (volts), that would be 14 amps. For such a microwave, you better put in at least a 20 amp circuit. Even with nothing else on the circuit.

Does fuse size matter?

One common misconception about choosing the correct fuse size is that it's dependent on the load of the circuit. Actually, the load of the circuit should have nothing to do with choosing a fuse size. The fuse size should be based on the SMALLEST wire (largest gage number) in the circuit.

What happens if you use a 13amp fuse instead of a 5 amp?


not it's not. the device can't take more than 5A that's why it has a 5A fuse. if you put a 13A fuse in the device might take upto 13A before the fuse blows and more than likely you'll fry it.

What happens if you put a 20 amp fuse in a 15 amp slot?

If you are replacing it in your house mains and if your house wirings are not rated to handle more than 15 amps then it may melt the insulation of wire and cause an internal short circuit. Your 20 amps fuse would save your house from burning down but it would cost a lot to replace all the house wirings.

What happens if I put a bigger fuse in my amp?

By changing the fuses to make them larger, all you would do is is make it so your amp could destroy itself if there was a surge of power, instead of blowing a fuse.