This fuse is responsible for making sure the heating element does not go over a certain temperature. However, a fuse that won't heat the dryer isn't necessarily blown out. It may be a good idea to use a pair of needle nosed pliers to help you. Follow these steps to replace your dryer's thermal fuse. Fuse temperature ratings can range from 300 to 350 degrees. It is required that all dryers should have a thermal fuse for the safety purposes of its users, and this law has been well implemented since the 1980s. If the reading is open or OL, the thermal fuse is bad. Locate the blower cover--it's the large object facing you at the bottom of the dryer. If you do not have a meter, you can tape the wires on the thermal fuse together (only touch the wires when the dryer is unplugged) and check the operation. Step 3. If you have an electric dryer and the drum is rotating then the thermal fuse is not your problem. If the dryer works, the thermal fuse is bad. Simply touch the probes of the multimeter to the thermal fuse terminals. Turn off the power to the dryer by unplugging it from the wall, or by tripping the breaker switch at the home’s main electrical panel. Debby, The the thermal fuse is located on the blower housing behind the lower access panel. How to replace a dryer's thermal fuse. When the thermal fuse blows in an electric dryer, the display lights still work but the drive motor won't run. If everything is good so far, the last thing to check will be the timer. To begin, you need to log into or create an account with PartSelect. Troubleshoot and test the fuse first to find out. Robert Korpella has been writing professionally since 2000. Have power to the plug. Your dryer has a similar set of safety features. Make sure that the home appliance has no supply of electricity before you start testing the thermal fuse. Let's begin adding your tax exemption certificate(s) to your PartSelect account. Take each of your meter's probes and touch one to each terminal. How to Troubleshoot a Dryer That Won't Stop. However, if the multimeter needle does not respond or the numbers on the digital screen do not significantly change, the part does not have continuity. We'll send you expert repair help, discounts, and more! Step 4. 1 person found this answer helpful. Before turning the power back on to the dryer, inspect the appliance and troubleshoot the reasons the thermal fuse triggered. Unplug the appliance from the wall, or cut the circuit to … If you placed an order on ApplianceHelp.com the order is still valid and you can check on its status and make changes here on PartSelect.com. Instead, you'll just need to replace the dryer thermal fuse. Answer Hello Steve. Testing a Dryer Thermal Fuse Checking the thermal fuse is the fastest way to determine if it is why the dryer will not generate warm air. Testing a dryer's thermal fuse is much like testing its thermostats. Install the new fuse and re-attach the wire leads. But first, turn the dryer 240V power cord OFF from the wall and only then start to work on the dryer. Could the thermal fuse cause the dryer to be completely dead? Check the dryer exhaust for lint build up or an obstruction that may have caused a rise in temperature. Remove the wires from the thermal fuse terminals to test it. Either unplug the unit from the wall outlet, remove the appropriate fuse from the fuse box, or flip the appropriate breaker in the circuit breaker panel. After you access the device, testing a thermal fuse is a quick procedure. Before you test a fuse with a multimeter, turn off the equipment and remove the fuse by pulling it straight out of its slot. But if a thermal fuse is tested when it is heated to its limit, a reading of infinity should be produced. Turn the meter to ohms, then touch the positive and negative leads together and check the reading. Checking the timer. The Thermal Fuse is number 3977394 is 352F, it is a one time fuse, if it blows, it will not allow the heat to come back on. A reading of infinity indicates the thermal fuse is good. A thermal fuse acts like a switch when dryer exhaust temperatures climb too high. Use our step-by-step dryer repair guide to learn how to test your thermal fuse. Diagnosing a tripped thermal fuse is easy. Reinstall good thermal fuses, and test other parts. Locate the blower cover--it's the large object facing you at the bottom of the dryer. Remove the back access panel on the dryer, and look for the exhaust duct near the bottom of the unit. Adding a certificate takes only a few moments. One of those essential pieces is the dryer thermal fuse. Should you need to upload, just click the “Import your copy of this document” link in the form. Make sure your dryer is still disconnected and turn the timer to … You will need to test it and see if it is open. Two screws typically mount the thermal fuse to the exhaust duct. Next, put one lead on each end of the fuse and check the reading. Any other reading means the fuse has triggered and must be replaced. If the multimeter reads zero, the fuse is operational. The thermal fuse is either circular or oblong, often white plastic with black material in the center and two wire leads. Korpella's work has appeared in a variety of publications. Adding a certificate takes only a few moments. Make sure the blower motor turns easily without binding. The best way to test a thermal fuse is by testing it with a ohmmeter or digital multimeter. After watching the videos on parts replacement the repairs were generally easy to do. Either unplug the unit from the wall outlet, remove the appropriate fuse from the fuse box, or flip the appropriate breaker in the circuit breaker panel. I used an multi meter set to Ohms to test the dryer parts: igniter, flame sensor, coils and as I found out the thermal fuse (always check anyway). We will notify you via If your dryer runs but does not heat your high limit thermal fuse may have blown. You will be taken through a CertCapture request form. Turn off the electrical power to your dryer. Testing a dryer's thermal fuse is much like testing its thermostats. Error occurred, please verify your email and try again. How to Check a Dryer Thermal Fuse Unplug the dryer and remove the front access panel. If the test you conduct with your thermal fuse does not produce these results, then you should replace the component. Set the multimeter display to read Rx1, or the lowest setting, and touch a probe to each of the thermal fuse wires. We strongly recommend that you test your thermal fuse at room temperature. You’ll have to open up the dryer; the location of the thermal fuse will vary between models. If the test you conduct with your thermal fuse does not produce these results, then you should replace the component. You are testing for continuity, and you should receive a reading of either zero or infinity. We see you're shipping to . Let the thermal fuse get to room temperature before testing. The image above shows the location of the thermal fuse. Touch the tester’s probes to each terminal on the fuse. Unplug the dryer and remove the front access panel. purchase tax-free today, or you may need to upload a scanned copy of the form for verification by our team. Some dryer repair shops advocate bypassing the thermal fuse by adding a jumper wire. Set your multimeter to the R X 1 setting. Instead, remove the wire leads from the thermal fuse and set a multitester to its lowest RX setting. How to Check a Dryer Thermal Fuse Step 1. For more information about dryer thermal fuses: All brand logos are trademarks of their respective owners. Verification is completed within 3 business days. The wires leading to the thermal fuse are connected using metal slip on connectors. But if a thermal fuse is tested when it is heated to its limit, a reading of infinity should be produced. We strongly recommend that you test your thermal fuse at room temperature. The door switch should be mounted to the back of the door frame. © Copyright 2020 Hearst Communications, Inc. Some other parts to test include the motor and heating oils, or get … There are … If you have items in your cart, they will be saved for your return. Should you need to upload, just click the "Import your copy of this document" link in the form. Carefully unplug the dryer from the wall, slide out the dryer, and remove the back panel (on some dryer models the side panel or top panel will need to … With Avalara CertCapture, you can add your tax exemption certificates to your PartSelect account to purchase tax-free! Yes, it will cause the dryer to loose neutral. Depending on the information that you enter, you may be able to add your tax exemption certificate immediately and First of all, you need to disconnect the home appliance from the electric power supply. The thermal fuse detects how hot the air is inside the dryer. There are other thermometers that help to regulate the heat. Manufacturers design thermal fuses for a range of models, but the size, shape and temperature rating of fuses make a difference. The PartSelect logo is a Registered Trademark of Atlantic Laundry Centres, Ltd. The thermal fuse is either circular or oblong, often white plastic with black material in … Touch the black lead to one of the fuse’s terminals and the red lead to the other terminal. Many dryers simply will not run once a thermal fuse triggers. To test if your thermal fuse has blown, touch the right side of your multimeter lead to the right side of the fuse, and repeat with the left multimeter lead. To find and test the thermal fuse on your dryer, it will usually be mounted on the back of the dryer. Enter your model number and our Instant Repairman will help diagnose and fix your appliance. Every dryer has its own procedure on how to disassemble it … The fuse is there to prevent a surge of electricity from reaching the inner workings of the appliance. I get a ton of questions from folks with ‘no heat’ dryers, and thought I’d tell you about the second most common cause of the problem – the thermal fuse (actually, these days, I think the numbers of open elements and blown thermal fuses are running about even in electric dryers). The thermal fuse in a dryer is a safety component that trips if the air flowing through the drum overheats. email once verification is done. Once you have diagnosed the problem we have the OEM replacement thermal fuse that fits your appliance. What Is a Thermal Limiter Used for on a Dryer? Remove the wires by pulling on the connectors, and not the wires themselves. Troubleshoot For an ohmmeter, set it to "Rx1." On an electric dryer if the thermal fuse … Recommended to you based on your activity and what's popular • Feedback Remove the wires from the thermal fuse terminals to test it. How to Fix a Whirlpool Dryer That Blows Cold Air, Dave's Repair.com: Your Dryer's Thermal Fuse, Don Vandervort's Home Tips: Dryer Thermal Fuse, How to Verify the Thermal Fuse Is Burned out on a Dryer, How to Fix a Clothes Dryer That Won't Turn On, How to Tell if the Door Relay Goes Bad on a Dryer. Once this fuse is blown it will have to be replaced. What You Need All you need is a multi meter that can read continuity and or resistance. Some repair shops replace the dryer cycling thermostat anytime they replace a thermal fuse. Sometimes, the drum on a Whirpool dryer continues to operate even after the thermal fuse triggers. But if something goes out of control and the inside of the dryer gets too hot, the thermal fuse will blow. On other models, the drum … At room temperature, testing the thermal fuse should produce a reading of zero. The reading should be close to 0 ohms or closed. Should temperatures exceed normal loads, the thermal fuse triggers and shuts down the dryer, which helps prevent fires. If you’re comfortable going into electrical components, you can check the fuse. A blocked exhaust vent is the most common reason the air overheats. The wires leading to the thermal fuse are connected using metal slip on connectors. While this method does determine whether the fuse is bad, it is too easy to forget to remove the jumper and replace the thermal fuse. Don’t assume the fuse needs to be replaced right away. Thermal fuses are required on all dryers built since the 1980s. An electric dryer has a built-in dryer thermal fuse. Your Dryer’s Thermal fuse: What it does, How to Test it, Where to Find it . Set your multimeter to the R x 1 scale and touch the leads to the thermal fuse terminals to test for continuity. Let it cool if it’s hot. If the multimeter needle fails to move, this indicates the thermal fuse has blown. Before turning the dryer back on again, troubleshoot what caused the thermal fuse to trigger, and correct the problem. The clothes don’t get dry because the fuse shuts off the heating element. On other models, the dryer will not come on at all. Verification is completed within 3 business days. With Avalara CertCapture, you can add your tax exemption certificates to your PartSelect account to purchase tax-free! Steve for Model Number SDG4606AWW. The package includes 2 parts, a Thermal Fuse and a Thermostat. This may take a while. Hope this helps. Genuine Whirlpool Dryer Thermostat Kit part number 279769. With this you should also read near 0 ohms if it’s good and there is continuity, if not then replace the fuse. A thermal fuse, also known as the dryer fuse, is a small device found in the dryer, and it performs the primary role of preventing fire breakout. Check thermal cut-off fuse. We will notify you via email once verification is done. However, a thermal fuse is a one-time device. He is a certified Master Naturalist, regularly monitors stream water quality and is the editor of freshare.net, a site exploring the Ozarks outdoors. All rights reserved. Symptoms. This way, if too much electricity charges into the appliance, the fuse will blow, preventing substantial damage to your device. Remove the screws and replace the fuse with one designed for your Whirlpool dryer model. You just need to have a multimeter and check continuity between two contacts. A reading of 0 indicates the fuse has not blown, and any other reading means the fuse needs replacing. He holds a bachelor's degree from the University of Arkansas. These devices are located near the fuse, and often trigger the thermal fuse when they fail. When the thermal fuse isn't working properly, your dryer may not get hot at all or it may not be getting hot enough. Remove the back access panel on the dryer, and look for the exhaust duct near the bottom of the unit. First, of course, unplug the dryer. First of all, switch off the power source to your dryer before starting the testing process. My gas dryer is dead, no power, light not even coming on. Step 2. Follow these steps to replace your dryer's thermal fuse. Hi-Limit Thermostat failed. We have received your CertCapture request form for . The thermal fuse is mounted on the exhaust duct. Once it triggers, it must be replaced. If you see an error, try reloading the page. Copyright © 1999-2020, Eldis Group Partnership. Disconnect the power source to your dryer before you conduct this or any other test. You can do this by removing the plug. The last of the common causes is that the Hi-Limit Thermostat is not … Learn about testing for a blown fuse.