Showing 1 Result(s)

How to test a thermal fuse with multimeter full

You must be logged in to post a comment. John wanted to look his best. The night before he was to give his Ted Talk, he did a load of laundry. After the wash cycle completed, he threw the load in the dryer and went to bed.

Upon rising, he went to the laundry room, opened the dryer door, only to find that his laundry was still as damp as when he had pulled it from the washing machine. He only had a few hours before his presentation. The inquiries seem basic but were intended to eliminate oversights that could happen to anyone.

Especially when your mind is overloaded with other obligations. When troubleshooting, it is best to start with the most obvious and simple repairs first, working toward the more uncommon and difficult repairs.

Asking these questions may seem redundant but could save John the expense of an unnecessary service call.

There are a few reasons for this to happen and the remainder of this article will focus on two of them. In reference to electrical components, continuity is simply the unbroken flow of electricity from its power source and distributed through the appliance components. A break in continuity in any part of the electrical system would indicate that electrical current is not flowing to that component. The good news is that if you do find a break in continuity you will usually have found the part that needs to be repaired or replaced.

Unplug the dryer before beginning any work. Be careful while you work around sharp edges and delicate components. The high limit thermostat is actuated by temperature change. It is located behind the back panel and is attached to the heating element. The thermostat must be removed see below and tested at room temperature.

Paisa jitne wala game

Testing for continuity will determine if there is an unbroken flow of current. The following guide is for an analog multimeter.If a home appliance suddenly stops working, the first thing you should do is check if the thermal fuse is broken. You should always test the thermal fuse first before you go and purchase a new one. A thermal fuse is a safety mechanism inside the home appliance; it obstructs the flow of electric power in the case of overheating. It should take only a few minutes to test a thermal fuse.

First of all, you need to disconnect the home appliance from the electric power supply. You can do this by removing the plug. Make sure that the home appliance has no supply of electricity before you start testing the thermal fuse. Look for the thermal fuse located within your home appliance. Not all thermal fuses are located in the same part of the appliance. It may differ from one brand to another, and it may also vary depending on what type of home appliance you have.

Generally speaking, the thermal fuse can be found in two locations: behind the rear panel or behind the bottom toe panel. Use a screwdriver to remove the panel so that you can have access to the thermal fuse behind. If the thermal fuse is located behind the rear panel, remove the screws with the screwdriver. On the other hand, if the fuse is located somewhere in the front, use the screwdriver to press the metal clips and remove the panel.

Put the panel aside when it comes loose, and leave it there until you have done all the testing and repairs necessary. The thermal fuse is a white strip of plastic, and it has two wires attached to itself.

How to Test a Thermal Fuse

You need to remove these two wires. You need either an ohmmeter or a digital multimeter in order to test the thermal fuse. You have to adjust your ohmmeter to the Rx1 setting. If you are not familiar with an ohmmeter, this is a device that helps you check whether the thermal fuse is letting electricity flow into the system of your appliance or not.

Allow the probes of your ohmmeter or digital multimeter to touch the ends of the fuse. The device should display a reading on the screen. Read that carefully, and it will help you determine if the fuse is broken or not. On the other hand, you need to install a new thermal fuse if the needle of the ohmmeter does not move.

Keep in mind that a thermal fuse cannot be adjusted, and if it is found to be faulty or broken, you need to replace it immediately. We welcome your comments and suggestions. All information is provided "AS IS. All rights reserved.

How To Use A Multimeter

You may freely link to this site, and use it for non-commercial use subject to our terms of use. View our Privacy Policy here. Toggle navigation subscribe.

Windows unable to format sd card

How to Test a Thermal Fuse. Written by Jean-Pierre Catania. To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience.

Charles Ouellet. What You'll Need.Your microwave may be equipped with various types of thermal fuses to monitor and control the work of the internal parts, such as Magnetron, Blower Motor, Fan Motor, etc. Thermal fuses can be non-resettable and resettable which is also called thermal cutoff switch or thermostat. The newer models of microwaves and other appliances tend to use the resettable thermal fuses.

In your microwave, each thermal fuse controls specific internal part and monitors the temperature increase and decrease of that component. All thermal fuses, except the one that controls the fan motor, should have continuity. To test the fuse for continuity, you will need to disconnect one of its terminals and check it with multimeter. The thermal fuse that control the magnetron can completely shut down the microwave. Its location varies depending on the type of the microwave:.

To test the thermal fuse control the magnetron, please disconnect one of the terminals of the fuse and check it for continuity with a multimeter.

How to locate and test the microwave's thermal fuse. CP Support Team. Was this article helpful? Full name. Diagnostic Tips. My microwave's display is not working.

how to test a thermal fuse with multimeter full

Microwave light and motor turns on, but the turntable doesn't spin and there is no heat. Dim Display. Microwave turns on by itself. What can possibly cause this issue? Microwave will not turn on and lights are off. How to locate and test the cylinder inline fuse. Microwave light and motor turns on, the turntable spins but there is no heat. How to Test Humidity Steam Sensor? Microwave lights do not work. How to Test a High Voltage Capacitor?

Microwave Fan Makes Noise. Microwave runs loud and noisy. Troubleshooting the exhaust fan. Microwave starts running when the door is open.

Nested map in apex

Common reasons of sparking inside microwave. How to test a magnetron? Common Broken Microwave Symptoms. How to Fix a Microwave Touchpad. How to Fix a Noisy Microwave. How to Fix a Sparking Microwave.

how to test a thermal fuse with multimeter full

Microwave Repair and Troubleshooting Tips. Common Dishwasher Problems. How to fix a dishwasher that doesn't clean well.Naturally, you want to protect your appliances and keep them operating in peak condition for as long as possible. But did you know that certain appliances have a device that allows the unit to protect itself? That device is a thermal fuse and it can be found on dryersovensmicrowave ovenseven some dishwashers and refrigerators. This safety device protects the appliance from overheating and potentially damaging the motor or other sensitive components.

Unlike a thermostat that can reset itself, once a dryer thermal fuse blowsit will need to be replaced with a new one before the dryer will run.

On electric dryers, the thermal fuse is often located on the blower housing or near the heating element. On gas models, the thermal fuse can be found on the blower housing or near the burner. The number one cause of thermal fuses blowing is the build-up of lint inside the exhaust venting which makes the dryer overheat. At least once a year you should detach the venting from the rear of the appliance and use a vent brush to clean out the lint and any other debris to ensure good air flow.

In addition to fuses, Repair Clinic carries all the replaceable appliance parts to fix your dryer such as ignitersgas valve solenoidsheating elementsthermostatstimersdoor switchesand much more. Will the dryer run if the thermal fuse is blown? If the meter display shows zero Ohms of resistance, the fuse has electrical continuity and has not blown, indicating that another component in the dryer is likely defective and preventing the appliance from running or heating.

If the meter display shows no significant change, the fuse has no continuity which means it has blown and will need to be replaced. Shop Dryer Thermal Fuse Parts.This article was co-authored by Ricardo Mitchell. Ricardo has over 10 years of electrical and construction experience and his partners have over 30 years of relevant experience.

Otis online training

This article has 11 testimonials from our readers, earning it our reader-approved status. This article has been viewedtimes. Sometimes these fuses require testing to check that they are still in good working order. Testing fuses can be done using a multimeter, and doing so is both fast and easy to learn. Before you test a fuse with a multimeter, turn off the equipment and remove the fuse by pulling it straight out of its slot. Turn the meter to ohms, then touch the positive and negative leads together and check the reading.

Next, put one lead on each end of the fuse and check the reading. If the reading is close to the one you got when you touched the positive and negative leads, the fuse is fine. Did this summary help you? Yes No. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker.

Log in Facebook. No account yet? Create an account. Edit this Article. We use cookies to make wikiHow great. By using our site, you agree to our cookie policy. Learn why people trust wikiHow. Explore this Article parts. Tips and Warnings. Related Articles. Article Summary. Part 1 of Understand fuses. Fuses are really just wires that are designed not to last, but their purpose is to prevent damage to more valuable electrical equipment or prevent fires especially in homes caused by power surges.

If too much power runs through the fuse, it will "burn out," quite literally, and open the circuit, preventing the current from flowing through the circuit. There are several varieties of fuses, but their differences are primarily in appearance.If your Kenmore dryer runs but does not heat, the problem may be a blown thermal fuse in the heating-element circuit. The thermal fuse is designed to open if the high-limit thermostat fails to open the heater circuit when the drum temperature reaches unsafe temperatures.

Some Kenmore dryers -- those with solid state controllers -- will also have a small fuse on the printed circuit board to protect the solid state components against current surges and short circuits.

If the machine does not run at all, the problem may be a blown control fuse.

how to test a thermal fuse with multimeter full

Both the thermal fuse and control fuses are easy to check. When troubleshooting any appliance, always begin by disconnecting the appliance from its power source. In the case of a clothes dryer, move it away from the wall and disconnect its power whip or cord from the dryer receptacle. To access the thermal fuse, disconnect the exhaust duct from the dryer's outlet and remove the rear panel. The thermal fuse is a rectangular component near the heating element with wiring terminals on each end.

How To Troubleshoot When Electric Dryer Won’t Heat

To test any fuse, set the function switch on your digital multimeter to the "R X 1" scale or to its continuity function, if it has one. To test the thermal fuse, remove the wire or wires from one end of the fuse, then touch one of the meter probes to each of the terminals. Testing the small, glass-bodied fuse protecting the solid state components on the controller's circuit board is easy once you have gained access to the board.

Depending on the make of Kenmore dryer, you may have to remove from two to 12 screws from the control panel to gain access to the board. The controller fuse clips into a fuse holder on the board, so pull the fuse from its clips. Alternatively, some fuses may be soldered into place, in which case it's necessary to unsolder one of the fuse ends before testing the fuse to prevent a false reading through other board components.

When replacing fuses, ensure to replace them with an exact replacement. In the case of a thermal fuse, replace the defective fuse with one of the same temperature rating. When replacing a thermal fuse, also replace the high-limit thermostat because odds are that the high-limit thermostat failed to open and caused the thermal fuse to blow.

When replacing a control board fuse, replace it with one of the same amperage rating. Based in Colorado Springs, Colo. Walch spent 40 years working in the electrical trades and holds an Associate of Applied Science in applied electrical engineering technology from Alvin Junior College.

By Jerry Walch. Accessing the Thermal Fuse When troubleshooting any appliance, always begin by disconnecting the appliance from its power source.

Testing the Thermal Fuse To test any fuse, set the function switch on your digital multimeter to the "R X 1" scale or to its continuity function, if it has one. Testing Control Board Fuses Testing the small, glass-bodied fuse protecting the solid state components on the controller's circuit board is easy once you have gained access to the board.

Replacing Fuses When replacing fuses, ensure to replace them with an exact replacement. Photo Credits. About the Author.You have a good, verifiable power source, and the circuit appears to be in good working order.

However, the circuit is protected by a fuse. Below you will be presented with a number of steps that you will need to take to test the fuse using your analog voltmeter. This is a safety measure that you should never skip. Prior to doing any testing using your voltmeter, you should make sure that there is absolutely no power flowing in the circuit. After making sure there is no voltage present that can cause injury or a dangerous spark, you will need to remove the fuse from the circuit.

This can be done by either grasping the fuse and pulling straight up and out, or opening the fuse holder and pulling the fuse out of the holder. For this step you will need to properly and completely insert the test leads into your analog voltmeter.

A fuse is a type of current limiting device that introduces zero resistance to the circuit, so you will need to set your analog voltmeter to the lowest resistance scale possible with your meter. On most analog meters, this will most likely be a Ohm scale. On analog meters, there will be a knob that is used to calibrate your meter to zero resistance. With the meter set on the lowest resistance scale, touch the two leads together and watch the deflection.

Sunless citadel 5e maps

Once the meter is properly calibrated, you can take accurate readings. In order to take your resistance reading, touch the conductive leads or ends of the fuse with the conductive ends of the test leads on your meter. If the fuse is in working condition, the meter needle should deflect to the far right and point directly at zero.

Any reading except zero means that the fuse is questionable and should be replaced as soon as possible. Power applied to a meter that is configured for resistance measurements will destroy the meter. Whenever possible, remove the component from the circuit before taking resistance readings.

How to Test a Thermal Fuse

We welcome your comments and suggestions. All information is provided "AS IS. All rights reserved.