how to test dryer motor with ohm meter

The forceful closing of the dryer door often leads to cracking of the plastic switch housing and the eventual failure of the switch's internal contacts to close properly and complete the electrical circuit supplying power to the dryer's timer motor. This article has 12 testimonials from our readers, earning it our reader-approved status. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media. For tips on setting up your ohmmeter properly, read on! Warning: When testing an electronic circuit, be sure it is not live. "The simplicity of writing helped me more to understand. How do you use measured ohmmeter resistance directly? This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Expert Interview. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This time an O.L. indicates that the switch is good and an 0.00 indicates that the switch is bad. Got an electric motor that just wont start? Lubricate the bearings if they are stuck or jammed. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. With a multimeter, measure the resistance between motor frame (body) and earth. Her work has appeared in several national literary magazines. If it stays shorted or does not rise, there is probably an issue with the capacitor and may need to be replaced. Step 1 Turn off the power to the dryer. Let me walk you through the steps to start relay testing with a multimeter. how many ohms should a dryer heating element read. If the numbers do not move at all, it likely means that your electric motor has an electrical problem. Set your DMM to the Ohms Function and touch the probes to the terminals on the capacitor. Bear in mind that the longer you leave a problem, the bigger it could become, turning to an even costly repair or replacement. (Normally Open), and N.C. (Normally Closed). For tips on setting up your ohmmeter properly, read on! Connect 1 probe from your tool to each of the wires. By using our site, you agree to our. What is an Electrical Circuit? Slide the putty knife between the top and the front panel, pushing the catches toward the rear to release them. With Avalara CertCapture, you can add your tax exemption certificates to your PartSelect account to purchase tax-free! wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. ", Checking an Electric Motor with a Multimeter & More, https://www.youtube.com/watch?v=lzA9sYhkqaw&t=48s, https://www.youtube.com/watch?v=lzA9sYhkqaw&t=93s, https://www.youtube.com/watch?v=WvALVu9if1Y&t=163s, https://www.accelix.com/community/preventive-maintenance/typical-causes-of-electric-motor-winding-failures-and-how-to-prevent-them/, http://www.tigertek.com/servo-motor-resources/check-spindle-motor-windings.html, https://globalbearings.com.au/electric-motor-bearings-how-to-check-if-theyve-gone-bad/, https://sciencing.com/troubleshoot-electric-motor-capacitor-problem-8001821.html, https://motorimpex.ua/files/downloads/MPFiltri_LMG.pdf, https://www.powertransmissionworld.com/is-your-electric-motor-trying-to-tell-you-something/, https://electrical-engineering-portal.com/7-most-common-motor-enclosure-types-defined-by-nema-standards, http://www.uesystems.com/news/the-50-failure-modes-of-electric-motors. Always remove wires from the part you are testing with an ohm meter ( write down what goes where first before removing any wires ). Attach an alligator clip to each of the two terminals you need to test, such as electrical cord prongs or element leads. This repair will apply to most every Kenmore, Whirlpool, Maytag and Frigidaire Dryers along with many other brands. To test the motor, turn the timer to "OFF', which should make the motor contacts open. The first step in using an ohmmeter is setting it up. However, some dryers function at a 220V alternating current in the US. While the probes are still touching the switch's terminals, press in on and hold the switch. Lives In: Denver Colorado You can wire a blower or any other compatible device to the motor. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. wikiHow is where trusted research and expert knowledge come together. You should never use your ohmmeter to test any live circuits. Keep reading to diagnose what might be wrong. Tip: If youre investing in an ohmmeter for general use, you probably ought to go ahead and buy a good quality "multimeter" (multi-tester), which can test other electrical values such as voltage and amperage as well. Often, the motor and timer are sold as a single assembly, so the whole thing should be changed. How to Fix a Door That Won't Lock on a Self-Cleaning Oven, How to Repair a Refrigerator That Freezes Food and Won't Shut Off, Electric Range Burner Temperature Control Troubleshooting, The best air purifying plants for your home, How to Know if a Whirlpool Oven Sensor Is Bad, Troubleshooting a Stove's Thermostat or Selector, How to Check the Continuity on a Water Heater Element. We will notify you via email once verification is done. For information on how to check the fan and the bell housing, read on! wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Otherwise, it will burn out within a minute if it stays on. RepairSmith was also included in Built in LAs 50 Startups to Watch and The Business Intelligence Groups 52 Names Leading the Way in Customer Service. To check the thermal cut-out - You can bypass the thermal cut-out (just connect the 2 wires together) for testing purposes only. Zero the multimeter tool by moving two probes together. You should, Safety Switch on Motor-There is a safety switch on motor to insure that heaters can not come on unless motor is running. Take each probe and touch it to one wire. Adding a certificate takes only a few moments. Home Appliance Repair Help Dryer Repair Help Test With Ohmmeter. Set a Digital Volt Ohm Meter (DVOM) to the ohm setting and test the motor while the power is shut off. More about us. Functioning as the heart of every dryer, the timer is nothing more than just sets of cam-operated switches. You can do this by turning off the circuit breaker that delivers power to it, or you can simply unplug the machine if it is not direct fed. Create any custom mask you can imagine for just $9.99! Remove the metal screws of the panel with a Phillips screwdriver. The two catches securing the top in place are located at the front right- and left-hand sides, about one to two inches in from the sides. Use it to try out great new products and services nationwide without paying full pricewine, food delivery, clothing and more. Set your multimeter to the R x 1 setting. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. The meter should indicate an open circuit by displaying an O.L. on its LCD (Liquid Crystal Display). If the timer is not working as it should be, more often than not, the issue is failing motor control contacts. Were committed to providing the world with free how-to resources, and even $1 helps us in our mission. If a meter shows Infinity when an element is tested, the element is open (broken) and needs replacing. Volt meter (Ohm meter) To connect the motor to power, wire the blue and the white wires to a two-terminal plug. Do Electric Dryers Produce Carbon Monoxide? It's here that you will find the correct resistance value for the thermistor on your specific dryer model. 7. After reading this article, I feel confident enough to have a look, "It helped me a lot. The purpose of a dryer timer is to control the unit's cycles by regulating the length of time that power is directed to each component. How many ohms should a single phase motor have? Dryer timer assemblies are located behind the control console panel. TIP: If you do have a timer motor that has failed, consider replacing just the motor itself and not the entire assembly. If the bearings are not spinning freely, try lubricating them. You can use it by determining if a device is shorted or open. Now grab the multi-tester and set it to read ohms. [2] 4 Detach the thermostat wires. This image may not be used by other entities without the express written consent of wikiHow, Inc.
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