From all the info I got, I narrowed it down to 3 parts, Dryer Thermistor, #AP4201716, Thermal fuse# AP4201894 and Broken belt switch# AP4044838. How to Test the Start Switch. (Some dryer models have a belt switch) Additionally, if your dryer uses gas, be sure to turn the gas feed off too. I could not test the old parts, so I ordered all 3 to be safe. It will be located under the control console panel on top of your dryer. This means disconnecting the vent duct and unplugging the electrical power if not already â¦ Slide the putty knife between the top and the front panel, pushing the catches toward the rear to release them. Place one of the test lead probes on the "C" terminal of the door switch and the other test lead probe on the âN.O.â terminal. This is a dryer drum drive belt. Remove the screws on the side or lower front (they may be hidden under trim pieces that will have to be removed first). 4. For more information about dryer start switches: How to replace a dryer start switch. Â© Copyright 2020 Hearst Communications, Inc. Because it has no electricity, the dryer wonât turn on. Set the function switch on the Ohmmeter to the R X 1 scale. If not then this will cause the dryer to not run when the start switch is released. His work has appeared in âFamily Handymanâ magazine, âPopular Science,â "Popular Mechanics," âHandyâ and other publications. While the reasons that your dryer isn't working could be numerous, in most cases, either the power is off or the dryer's start switch â¦ Step 3 - Remove Belt. 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. Double check to make sure you have unplugged the dryer before working on it. Place a towel on top of the dryer to protect the finish. There are two common types. Thermal Cut-Off: The dryer's thermal cut-off is similar to the thermal fuse and the high limit thermostat. Turn off the gas supply to your dryer. why does my dryer only work if i hold down the start button? March 6th, 2008. Symptoms of a broken belt are similar to that of a broken door switch. Tilt the control console forward onto the towel and remove the rear panel. Heat only working for few minutes then turns off on gas dryer. Walch spent 40 years working in the electrical trades and holds an Associate of Applied Science in applied electrical engineering technology from Alvin Junior College. 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. Step 2 - Turn Dryer on Its Side. Common dryer issues include a faulty door switch or start switch and control problems such as a broken dryer timer or faulty electronic control board: Problems with the door switch can prevent the dryer from starting. Remove the wires from the 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. The start switch, door switch, and selector switch are commonly replaced parts for a dryer that won't start. Your question was published, help is on its way! Based in Colorado Springs, Colo., Jerry Walch has been writing articles for the DIY market since 1974. To test the switch, open the door press in the door switch lever. This time, the meter's LCD should display a â0.00â for a good switch. T he start switch is located inside the control console. In order to access the motor, you will need to turn the dryer on its side. The dryer will not start, or stops suddenly in the middle of a dry cycle. Check the spring mechanism. It worked...but it would only get warm on one setting. If the test you conduct does not produce these results, you should replace the switch. If the belt was routed correctly around the idler pulley and motor the belt switch should be closed so that it will run. 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 If the belt breaks mid-cycle, the switch turns off your dryer and keeps it off until the damaged belt is replaced. The difficult part of this task is gaining access to the switch. The reading should change to zero. The idler pulley spring rod should not be striking the switch. This video demonstrates how to test a two terminal switch on a gas or electric dryer. 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. Test the switch with a volt-ohm-milliammeter (VOM) set to the RX1 scale. Remove the front panel, if necessary, by lifting it up off it's bottom mounting clips and pulling it toward you. The switch senses whether the drive belt is intact or broken. I opened the back exhaust area and determined that the belt was not broken. Unplug the dryer door switch connector by depressing the connector tab with your fingers, then pulling the connector off. Once you have located the dryer motor, remove the rubber belt from the motor with your hands or with the assistance of a screwdriver. Door switches get a great deal of hard use. Randall for Model Number DWSR405EB2WW. The hi-limit thermostat is a fairly reliable dryer component and is rarely the cause of dryer heating problems. Step 4 - Check for Obstructions in the Blower Fan. The motor is bolted to the bottom of the appliance near the front, next to a tension pulley assembly that keeps pressure on the belt to prevent it from slipping. Depending on the make and model dryer that you have, you may have to remove the front panels as well before you can access the door switch. Release the switch and the dryer stops. One is a spring which attaches to the pulley and tensions the belt. Open the door on the dryer and try to turn the drum either clockwise or counterclockwise. There may be a piece of trim, or an endcap over the screws you have to remove. At room temperature, the thermostats should have a reading of zero. You should get areading of either zero or infinity. An âO.L.â on the LCD indicates a defective switch. Step 1 As always, before working on your dryer, be sure to unplug it or turn off the circuit breaker that is supplying the power to it. Shut the dryer door fully to activate the door switch. Touch one of the meter's test probes to the âCâ terminal on the door switch and the other test probe to the âN.O.â terminal on the door switch. Test and Repair a Clothes Dryer Switch : A family member gave me a fairly new electric clothes dryer that they recently replaced. Access to the motor and belt may be easiest from the front or from the rear depending on your model of dryer. The belt tension switch cuts your GE dryer off in the event that the belt breaks. by Manage My Life. Access the door switch by releasing the catches and raising up the top of the dryer. (Normally Open), and N.C. (Normally Closed). What is the capacity of my Kenmore washer model 41744072300 and the matching dryer? Move your dryer to an area where it will be easy to access the rear of the machine if possible. Disconnect the switch leads and clip one probe of the VOM to each switch terminal. 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. Kyle McBride Dryers operate on 240 volts and being shocked by high voltage can kill you. 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. The switch is a simple assembly, with two lead wires running to it. Step 10 Raise the front of the dryer tub slightly, then slide the belt off. Then take the top off by removing the two screws in the door (the only two pointing up) and lift up the top. 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. To check this, first unplug dryer. It will be located around the door opening in the front panel. To gain access under the control panel, you will have to remove the screw(s) located at either end of the control panel. 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. The meter should indicate an open circuit by displaying an âO.L.â on its LCD (Liquid Crystal Display). The most frequent cause for a clothes dryer's failure to start is a malfunctioning door switch. Note: This video is intended to give you the general idea of the part replacement procedure. I'm trying to re-connect wires to the TML thermal fuse and thermostat.A friend of mine took them all off, and after I got the replacement parts, ... Why has my LG Dryer model DLE2301W has blown 4 high limit thermostats in the past 3 weeks? It is 89.5 inches long with four ribs on the inside for a better grip. 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. Now remove the front by removing the screws inside the case (pointed toward the front) and lifting the front upward. Step 11 Connect power to the washer/dryer unit. This time an âO.L.â indicates that the switch is good and an â0.00â indicates that the switch is bad. I had originally planned to part it out and use the motor for some random project, but after seeing how gâ¦ You may be able to pop the switch out of place, or remove it by removing only a single screw. Step by step instructions on how to replace a Broken Belt Switch Kit #279782 for Dryer, Washer Dryer Combo made by Whirlpool, Kenmore, Maytag. In some cases you may need to use long-nosed pliers to pull the female wire connectors off the male terminals. ... Set the panel aside. Inspect the pulley. According to the wiring diagram your dryer should still start and run if you push and hold the start button. To test the thermostats or fuse, set the multitester to the ohmssetting X1. Belt Switch: Some dryer models use a belt switch attached to the belt tension pulley, which will open if the dryerâs belt breaks, not allowing the dryer to operate. How to Test a Dryer Door Switch With an Ohmmeter. The dryer wonât turn on because the dryer door is open or the dryer door switch is not working. Locate your dryer's door switch. Other commonly replaced parts for a dryer that wonât start are: Thermal fuse Drive motor Drive belt Thermal cut out fuse Main control board Timer A two-terminal switch will have terminals marked C and N.O. Testing a dryer door switch is a simple process. Touch one probe to each terminal. In this video I show you how to replace the belt on a Samsung Dryer. How to Test a Dryer Start Switch. The broken belt switch will keep the dryer from staying running, but it should start and run as long as you hold the start button in. Reverse steps 4 through 10 to install a new dryer belt. Test: Disconnect all connecting wires and check for continuity across the hi-limit thermostat or sensor set. The broken belt switch will keep the dryer from staying running, but it should start and run as long as you hold the start button in. Once you have released the catches, you will be able to lift the top and tilt it back on its hinges. The door switch will have either two or three terminals on it, depending on whether the dryer has a drum light. Remove the trim (endcap) pieces first. Like any other component in your appliance, the belt switch can malfunction causing your dryer to stop working even though the drive belt is fully functional. Test: How-To Test A Clothes Dryer Belt Switch Video. Your appliance may differ depending on the manufacturer and model. 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. Door switches get a great deal of hard use. Here is how to test the door switch on a dryer to determine if that is the cause of the dryer's ailments. If you are unable to access your dryer's door switch this way, you will have to remove the front panel of your dryer. Now dryer dryer runs when start switch is held to the right. The dryer will not start, or stops suddenly in the middle of a dry cycle. Answer Randall, You will want to make sure that the belt switch is being activated by the idler pulley. The most frequent cause for a clothes dryer's failure to start is a malfunctioning door switch. Dryer wonât turn on â possible causes in order of likelihood. The dryer belt broke so that the dryer wonât turn on. You should receive a reading of infinity. The door switch should be mounted to the back of the door frame. Any other display reading -- 0.00 for example -- indicates a defective switch. Make a sketch showing how the wires are connected to the switch, or take a picture of the connections with a digital camera. It will be located beneath the dryer drum. Move the test probe from the âN.O.â terminal to the âN.C.â terminal. If the dryer drum stops rotating, but the belt is intact, try testing the motor with a multimeter to check circuit continuity. Move the probe from the âN.O.â terminal to the âN.C.â terminal and the meter should display â0.00.â An âO.L.â display indicates a faulty switch. Symptoms of a broken belt are similar to that of a broken door switch. This video provides step-by-step repair instructions for replacing the belt switch on a GE gas dryer. Get more answers from the people in your networks. It's not a good feeling when you load up your dryer with soggy clothes only to have the machine not turn on when you turn the start switch. A three-terminal switch will have the terminals marked C (Common), N.O. While the probes are still touching the switch's terminals, press in on and hold the switch. Locate your dryer's start switch. If you could turn the drum easily without much resistance, most likely you have a broken or derailed belt.
2020 how to test a dryer belt switch