What would cause a microwave fuse to keep blowing?

It does wear out over time because you activate it every time you open or close the microwave. A faulty interlock switch is often the culprit if you’re blowing fuses regularly. If the microwave fuse blew because you opened the door while it was running, that’s a “smoking gun.” Otherwise, you’ll need to test the switch.

What is the reason for frequent blowing of fuse?

There are two conditions that can cause a fuse to blow. First, and most commonly, when too many lights or plug-in appliances draw power from the circuit, it can overload the capacity of the fuse and cause the metal ribbon inside the fuse to melt through.

How many amps is a microwave fuse?

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. This is a 20-amp fuse, and is used to power your microwave.

Can I use any 20 amp fuse for my microwave?

Answer Lisa, Yes, the 20 amp fuse WB2X3910 would be the be the correct fuse for your GE 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).

How do you know if a plug fuse is blown?

Remove the fuse from its holder. In some cases you may need a small screwdriver to unscrew the fuse holder cap. Look at the fuse wire. If there is a visible gap in the wire or a dark or metallic smear inside the glass then the fuse is blown and needs to be replaced.

What happens if you replace a 15 amp fuse with a 20 amp fuse?

If you replace a 15 Amp fuse or breaker protecting a 15 Amp circuit with a 20 Amp or 30 Amp fuse or breaker, the next thing you should do is book your own funeral. Too much current (or too many Amps) would flow through the wire and burn it before the fuse or breaker blows or trips.

What to do if your microwave oven fuse blows?

If the microwave fuse blew because you opened the door while it was running, that’s a “smoking gun.” Otherwise, you’ll need to test the switch. First, unplug the microwave. Remove the cover from the microwave and locate the door switch, which will be right below the spot where the door’s hooks latch into the frame.

Why does my microwave keep Tripping the fuse?

The door safety latch mechanism on your microwave contains several small switches. If any of the door latch hooks is broken or any of the switches is faulty, the appliance will not operate. This could also cause the microwave’s fuse to blow or trip your circuit.

How big is the fuse on a microwave?

The fuse is about 1/4″dia by 1-1/4″long. It blows immediately I press the start button. Appliance Technician: Kelly, Appliance Technician replied 9 years ago Great, thank you. If that is opening only after you start the microwave, you have a faulty high voltage component. Since it blows right away, it is likely shorted to ground.

What causes a fuse to blow when a door is opened?

Remember: switches open to allow power to flow through the circuit, and they also close to stop power from flowing through. A door switch that gets stuck will fail to do what it’s supposed to do, leading to a fuse being blown when the door is opened.

Why is my microwave blowing an internal fuse?

Replaced a 20AMP fuse. When the cook cycle starts, microwave makes a groaning noise and stops. It loses power since the fuse is blown. Solution: High-voltage capacitor shorted. Replaced it and microwave works fine. Its located behind the fan underneath the high-voltage transformer. Take pictures of all the connections behind the control panel.

What does it mean when your microwave is not working?

Microwave Not Working – Fuse is blown. A blown fuse is one of the most common problems a microwave can have, but that’s just the indication that something has gone wrong. A blown fuse really means one of your electrical components has broken or failed, and the next step is to find out which piece that is.

What should I do if my microwave keeps tripping the breaker?

Check your breaker panel, and if the breaker controlling your microwave is tripped, reset it. This isn’t conclusive; it could be that your Frigidaire microwave keeps tripping the breaker or a surge may have tripped both, but it’s an essential preliminary step. Next, check your wall outlet or your power bar if the microwave is plugged into one.

Why is my microwave making a groaning noise?

When the cook cycle starts, microwave makes a groaning noise and stops. It loses power since the fuse is blown. Solution: High-voltage capacitor shorted. Replaced it and microwave works fine. Its located behind the fan underneath the high-voltage transformer. Take pictures of all the connections behind the control panel.