The most frequent cause for a clothes dryer's failure to start is a malfunctioning door switch. You should not receive any reading on your meter from this test. Steps. Set the "Function" switch on your DMM to the "Ohms" function. Any value between and around thirty-two to forty ohms should be considered as standard value. You should put the red probe on the white wire. The steps include: Prior doing anything, check the rated value of the device (100Ω, 1KΩ, 10KΩ). You will need a towel, a Phillip's screwdriver, needle-nose pliers, and a multimeter. I have the Kenmore Dryer 110.62996101. Equipment Needed to Test a Thermistor. Dryer timer assemblies are located behind the control console panel. Locate the dryer timer on top or rear of the control panel, which is commonly the largest dial with several numbers. Place the other probe on each terminal, one at a time. Now check the ground connection. Take your multimeter and place the negative (black) multimeter probe on the brown wire. Locate the two terminals on the motor. Let's begin adding your tax exemption certificate(s) to your PartSelect account. How to replace a dryer's motor. The black lead goes on right, and the red lead goes on left. Capacitors are metal tubes that store an electric charge usually found near a motor in the appliance. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media. Thermostats-Cycle and safety thermostats-read them with an ohm meter. NTC thermistors have their resistance decreased when the temperature increases. Lift the cover gently to expose the wire leads. Touch each of the meter's probes to one terminal each. Digital mulimeters are easier to use than analog, and the results are more reliable. Connect the black and red terminals with the corresponding slots. Step 5 - Check the Capacitor. If there is any reading on any of these then the motor is bad, do not use it. Your tester will have two wires with lead tips. It is a small, … Adding a certificate takes only a few moments. A dryer’s timer motor does not go bad too often. Turn off the Power. Copyright © 1999-2020, Eldis Group Partnership. This dryer motor relay switch supplies power to the motor. Take the other probe and touch it to the other terminal on the motor. If your dryer's motor fails either of these tests, you will have to replace it. If it is, it is good. You should first short the capacitor out with a screwdriver to make sure it doesn't have a charge on it that could damage your meter. Polarity is not an issue here. Disconnect the dryer cord and turn off the power from the breaker box or fuse box. Your motor should show little resistance (a reading of zero, or close to zero). If you are … If the filter slides into the top of the machine, remove the entire front panel. You will be taken through a CertCapture request form. We see you're shipping to . Locate the capacitor inside your appliance. In order to effectively test the motor, you will be required to disconnect it from the power supply. Things Required: – Dryer – Multi-tester – Screw-drivers – Tower – Needle-nose pliers Not all dryers have a motor relay switch. Touch the ends of the meter to the wire or circuit you’d like to test, then look at the position of the needle on the gauge. Access the Timer Motor This will make the needle move even farther from zero before going back. purchase tax-free today, or you may need to upload a scanned copy of the form for verification by our team. Before you can begin to test your dryer's timer motor, you must first locate the device. Another possibility is that the driven load is jammed, binding or mismatched. A normal reading for most dryers is in the 2000 to 3000 ohms range. All this tells you is if the capacitor is shorted or not. Sometimes a visual inspection will tell you if a part needs replacing, like a corroded bake element, or a broken dryer belt. Check the readings on your multimeter; If your motor … He confirmed that power was getting to the motor fine but when he hooked up a new motor, nothing happened. Your email address will not be published. The first thing you will want to do is disconnect the power supply from the dryer. It is typically the dial with the largest set of options like "optimum dry" or numerical time indicators. In order to check with an ohm meter, remove the two large wires on motor switch and make them electrically safe. How to Test the Winding of a 3 phase Motor. Using a multimeter, check the continuity of motor winding from phase to phase ( U to V, V to W , W to U ).Each phase to phase must have a continuity if winding is OK. Remove the potentially faulty part from your appliance. With Avalara CertCapture, you can add your tax exemption certificates to your PartSelect account to purchase tax-free! From what I have read if the thermistor is bad the dryer wont run for more than 30 seconds or so. Locate the timer on your dryer's control panel. Note the two figures so you can check them against the multimeter readings. I unplugged the dryer, got into the control panel and disconnected the 'electronic control' wiring harness. Turn on your multimeter and set to the lowest resistance setting. Your motor should show little resistance (a reading of zero, or close to zero). Capacitors are metal tubes that store an electric charge usually found near a motor in the appliance. If it does not, then it is faulty. When an electric motor fails to start, runs intermittently, runs hot, or continually trips its overcurrent device, there my be a variety of causes. Basically tells you if it's bad but not necessarily if it's good. Should you need to upload, just click the "Import your copy of this document" link in the form. Slide out the screen and remove the … I set my multimeter on lowest range for ohms and touched one end to neutral and the other end to the motor pin (on the control board, where the wiring harness plugs in). However, there are multimeters that measure AC and DC voltages. Now heat the thermistor by moving your heated soldering iron tip to it. This should make the needle of the multimeter jump from zero to the right before going back to zero. We will notify you via email once verification is done. Test your multimeter to ensure it’s working properly by touching both multimeter metal probes together (the black and the red probe). 1. Using a digital multimeter to check for voltage on a typical 220-240 vac dryer plug receptical. Connect the multimeter terminals to the thermistor leads. How to Test a Dryer Door Switch With an Ohmmeter. Remove the front panel, if necessary, by lifting it up off it's bottom mounting clips and pulling it … Place one probe on the bare metal housing of the motor. The meter will indicate an open circuit by displaying "OL" on its Liquid Crystal Display (LCD) for a good thermostat that has normally open (NO) contacts, or it will display zero (0.00) Ohms for a good thermostat that has normally closed (NC) contacts. Because we’re dealing with electrical devices, the first step is usually to switch off the power supply to the device. It should read “00” or show a very low reading if continuity is present. WTWH Media LLC and its licensors. The resistance settings are the ones measured in Ohms. This will happen only for a healthy thermistor. 3. Safety first! Touch the leads to the capacitor terminals. read more Tyler Z. If your dryer is not heating then you should test the thermal fuse (thermal cutoff) for continuity to see if it is good or bad. Set your multimeter to the R x 1 setting. 1. We will notify you via Dryer Motor Relay Switch. The PartSelect logo is a Registered Trademark of Atlantic Laundry Centres, Ltd. Once you have diagnosed the problem we have the OEM replacement motor that fits your appliance. The multimeter should read at or near zero. A digital multimeter is an indispensable tool for testing, diagnosing, and troubleshooting electrical circuits, components, and devices. Unplug the dryer or turn off the circuit breaker delivering power to it, whichever is easiest for you. We have received your CertCapture request form for . Use a screwdriver to open your machine and locate the capacitor. It is normally open when the motor is idle/not running, and closes when motor runs. If the switch is good, test the thermal fuse (see “No heat” below) mounted on the blower housing. You may only have to remove the screws securing the front control panel in place, or, depending on your model, your may have to remove the rear panel behind the control panel. In this case, you are testing resistance. On an electric dryer, remove the rear service panel. Adding a certificate takes only a few moments. Finally, NOW TURN THE METER TO VOLTS. Turn on the multimeter and set its function to the lowest setting for ohms (resistance). A multimeter is a versatile tool that can be used to measure electrical resistance within a circuit, just as you would use a ruler to measure distance. 1. With a multimeter set to low ohms (usually 200), test between each winding terminal and the metal casing of the motor. With a simple multimeter, you can do a basic static test of the capacitor. If any particular phase fails the continuity test, your motor is probably burnt. A simple continuity test using a digital multimeter will verify whether the motor control contacts are closed when the timer is in its “on” position. With Avalara CertCapture, you can add your tax exemption certificates to your PartSelect account to purchase tax-free! Problem is runs but no heat. Touch each of the meter's probes to one terminal each. For example, my multimeter has scales for 200 ohms, 2 K ohms, 200 K ohms, 2 … If you need help selecting a multimeter, check our post on Maker Advisor about Best Multimeters Under $50. Locate the two or four screws, depending on the motor model, and unscrew them with the slotted screwdriver. If your meter is an autoranging meter, it will select the appropriate range for you. Finally, reverse the leads. These scales determine how much current the multimeter will use during the test. Multimeter with an Ohmmeter; Resistance of thermistor; Testing an NTC thermistor is slightly different from testing the PTC version. email once verification is done. We'll send you expert repair help, discounts, and more! Part 1 of 2: Discharging the Capacitor. Use needle-nose pliers with an insulated handle to remove wires. Check the label on the electric motor to determine the voltage and amperes it needs to operate. Place one probe on the bare metal housing of the motor. Take each probe and touch it to one wire. 4. Take the other probe and touch it to the other terminal on the motor. Here is how to test a dryer's timer motor. Touch the two leads together from the meter, and you should get a reading close to zero. You may find that when it runs ungrounded that the casing becomes live at up to supply voltage. Remove the motor's wire cover. Verification is completed within 3 business days.