Some dryer models use a belt switch attached to the belt tension pulley, which will open if the dryer's belt breaks, not allowing the dryer to operate. Slide the putty knife between the top and the front panel, pushing the catches toward the rear to release them. Door switches get a great deal of hard use. Symptoms of a broken belt are similar to that of a broken door switch. How to Test a Dryer Start Switch. In this video I show you how to replace the belt on a Samsung Dryer. Check the spring mechanism. In some cases you may need to use long-nosed pliers to pull the female wire connectors off the male terminals. A three-terminal switch will have the terminals marked C (Common), N.O. It is 89.5 inches long with four ribs on the inside for a better grip. For more information about dryer start switches: How to replace a dryer start switch. why does my dryer only work if i hold down the start button? There are two common types. Disconnect the switch leads and clip one probe of the VOM to each switch terminal. If the dryer drum stops rotating, but the belt is intact, try testing the motor with a multimeter to check circuit continuity. The dryer will not start, or stops suddenly in the middle of a dry cycle. Touch one probe to each terminal. I opened the back exhaust area and determined that the belt was not broken. To test the thermostats or fuse, set the multitester to the ohmssetting X1. There may be a piece of trim, or an endcap over the screws you have to remove. Now dryer dryer runs when start switch is held to the right. This is a dryer drum drive belt. How to Test a Dryer Door Switch With an Ohmmeter. Note: This video is intended to give you the general idea of the part replacement procedure. Access the door switch by releasing the catches and raising up the top of the dryer. Your appliance may differ depending on the manufacturer and model. Here is how to test the door switch on a dryer to determine if that is the cause of the dryer's ailments. Tilt the control console forward onto the towel and remove the rear panel. The reading should change to zero. How to Test the Start Switch. Move your dryer to an area where it will be easy to access the rear of the machine if possible. Inspect the pulley. Heat only working for few minutes then turns off on gas dryer. Step by step instructions on how to replace a Broken Belt Switch Kit #279782 for Dryer, Washer Dryer Combo made by Whirlpool, Kenmore, Maytag. 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. The meter should indicate an open circuit by displaying an âO.L.â on its LCD (Liquid Crystal Display). If the belt was routed correctly around the idler pulley and motor the belt switch should be closed so that it will run. It worked...but it would only get warm on one setting. Disconnect the dryer from the wall outlet; Open the toe panel and look to see if the belt is broken or just derailed from the motor & idler pulleys Step 3 - Remove Belt. In order to access the motor, you will need to turn the dryer on its side. You should get areading of either zero or infinity. This video demonstrates how to test a two terminal switch on a gas or electric dryer. Step 10 Raise the front of the dryer tub slightly, then slide the belt off. Before inspecting the belt, unplug the clothes dryer or shut off the power at the fuse box or breaker panel to avoid an electrical shock hazard. The switch senses whether the drive belt is intact or broken. (Some dryer models have a belt switch) Testing a dryer door switch is a simple process. How to Replace the Thermal Fuse on an Amana Gas Dryer, How to Install the Infinite Switch on a Kenmore Cooktop, How to Replace the Door Switch on a Kenmore Elite King-Size Capacity Dryer, Troubleshooting a Dryer That Doesn't Turn On, How to Troubleshoot a Dryer's Thermal Cutoff Switch, http://www.appliancerepairlesson.com: Test and diagnose dryer door switch dryer repair troubleshooting, http://applianceassistant.com:How To Test A Clothes Dryer Door Switch, Start Switch, or Belt Switch, http://www.familyhandyman.com: Clothes Dryer Repair Guide, http://mechatronics.mech.northwestern.edu:Using a Multimeter, How to Check the Resistance of the Igniter in a Dryer, What to Do When an Electric Dryer Won't Turn on. The switch on the dryer may be accessible from the outside door, or you may have to remove the top of the dryer to access it. Unplug the dryer door switch connector by depressing the connector tab with your fingers, then pulling the connector off. If you are unable to access your dryer's door switch this way, you will have to remove the front panel of your dryer. Turn off the gas supply to your dryer. You may be able to pop the switch out of place, or remove it by removing only a single screw. Then take the top off by removing the two screws in the door (the only two pointing up) and lift up the top. When the belt is off or broke the idler pulley spring rod will strike and lay up against the belt switch and it opens the switch to keep it from staying running. Dryers operate on 240 volts and being shocked by high voltage can kill you. Get more answers from the people in your networks. The start switch, door switch, and selector switch are commonly replaced parts for a dryer that won't start. This means disconnecting the vent duct and unplugging the electrical power if not already â¦ The most frequent cause for a clothes dryer's failure to start is a malfunctioning door switch. If the belt breaks mid-cycle, the switch turns off your dryer and keeps it off until the damaged belt is replaced. If not then this will cause the dryer to not run when the start switch is released. Additionally, if your dryer uses gas, be sure to turn the gas feed off too. It will be located beneath the dryer drum. You should receive a reading of infinity. Your question was published, help is on its way! Locate your dryer's start switch. Now if one of the door switch wires came loose or you did not get the wires back on the dryer is not going to start. by Manage My Life. Once you have located the dryer motor, remove the rubber belt from the motor with your hands or with the assistance of a screwdriver. One is a spring which attaches to the pulley and tensions the belt. Kyle McBride The belt switch will have a pink and a brown wire attached and it should be close to idler spring mounted on the motor bracket or base. The idler pulley spring rod should not be striking the switch. Remove the front panel, if necessary, by lifting it up off it's bottom mounting clips and pulling it toward you. The switch is a simple assembly, with two lead wires running to it.