how to test dryer thermal fuse

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

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