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Question: How To Change Ceramic Fuse Kitchenaid Microwave Khmc1857wss

What does a blown ceramic 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. The internal fuse wire (filament) will be melted and blackened. Ceramic fuses give no outward signs of having blown. To determine if a ceramic fuse is blown, test it with an ohmmeter.

Is there a reset button on a KitchenAid microwave?

The KitchenAid microwave reset process is fairly simple. Push the cancel/off button to clear the display. The error code should disappear. If call service or other code pops up, then remove power from the unit for one minute to reset the machine.

Where is the microwave fuse located?

Fuses are located in many places inside the microwave, including the top, side, and behind the vent grille. Using the wiring diagram can help you locate the appropriate fuse. Once you have located the fuse, remove any necessary wires and fasteners to free it from the microwave.

How can you tell if a ceramic fuse is blown?

A homeowner can determine if a glass fuse in blown by performing a visual inspection and looking for a break in the thin wire and a brown discoloration in the center of the fuse. A ceramic fuse, however, shows no damage upon visual inspection. Testing a ceramic fuse is the only way to tell if the fuse has blown.

Where is the ceramic fuse in a microwave?

The ceramic fuse is located inside of the cabinet near the entry point of the power cord. Remember to unplug the cord before attempting any repairs. You can check the fuse for continuity with a multi-meter.

How can you tell if a glass 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 is the difference between a ceramic fuse and a glass fuse?

Glass fuses have a low thermal stability and shatter in high-heat conditions. Ceramic fuses, on the other hand, can withstand high temperatures and are more thermally stable. Ceramic fuses, unlike glass fuses, are also often filled with a filler like sand to prevent the formation of a conductive film.

What happens when a microwave fuse blows?

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.

Will microwave turn on if fuse is blown?

In the most common scenario, your microwave will start up and run with no issue. This verifies that nothing that takes just 120 volts like your door switches and electronic control is causing the issue. WARNING: Do not attempt unless you have training in appliance repair.

What causes a microwave to suddenly stop working?

The most common cause for a microwave oven not working at all is a blown main fuse. The microwave main fuse will cut the flow of electricity if too much current passes through it. There can also be thermal fuses, cavity fuses, and thermoprotectors which will interrupt the electrical flow if the microwave overheats.

How do I reset my KitchenAid control panel?

Reset power to the product: Power unit down by turning off the circuit breaker(s) for one (1) minute. Power unit up by turning on the circuit breaker(s). Start a bake cycle. Monitor the oven for one (1) minute to ensure the error code does not display again. Verify oven operation.

Why is my microwave keypad not working?

In most cases of microwave buttons not working, the common cause comes out to be defective control panel. If some of the buttons are working fine while others are not then you may have to replace the touchpad and the control panel.

How do I get my KitchenAid microwave out of demo mode?

To Exit Demo Mode: Select Try the Product. Scroll and select Explore. Select the Tools keypad. Scroll and select INFO. Select Store Demo Mode and select OFF. Select YES on the confirmation screen.

Do microwaves have a reset button?

A soft reset is simply turning off the microwave oven to cancel or erase the program you’ve input in the microwave. To do this, you will just simply press on the Off/Clear button. Pressing Off/Clear button and holding it for about 3 seconds will also resolve the Control Locked feature of the microwave.

Where is the fuse located on?

Usually located in or around the instrument panel near the dash, fuses can also be found under the hood and even under the rear seat. Next time your radio, lights or other device stops working, chances are a blown fuse is the culprit. Look under “Fuses” in your owner’s manual for help finding your fuse panels.

How many fuses does a microwave have?

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 tell if a ceramic fuse is blown without a multimeter?

Testing without a muultimeter To test a fuse without multimeter, take a flashlight equipped with a flat battery. Unscrew the bulb and get the battery. Place the fuse of one of the battery “blades” and the base of the bulb on the other side of the fuse. Put the bulb pad in contact with the second “blade” of the battery.

Are ceramic fuses illegal?

Ceramic fuses are no longer allowed to be installed in people’s homes and we recommend an upgrade as soon as possible.