How to replace a dryer's thermostat. There are a number of different thermostats in your dryer with the single job of regulating the internal temperature. Dryer Operating Thermostat WP3387134 parts - manufacturer-approved parts for a proper fit every time! How to test a tumble dryer that is not heating and change a thermostat that is faulty Here is a step by step guide of the process: This video is on a compact Zanussi but the testing and repair is … 29% Off MSRP: $21.26 Estimated DIY Savings: $296.51. The only big difference from a light switch is that they have a mechanism that measures the temperature and when it reaches a predetermined point, it activates. HINT: Depending on the model number of your dryer, you will need to either take the front panel off or the back panel off to access the parts for testing/troubleshooting. Thermal fuse reads 0, thermo cut off reads 0, and 250 degree thermo reads 0. Reattach the thermostat when you're done testing it. I believe the model number is LCI5001WO, or LC15001WO. The cycling Thermostat that I ordered from you last Wednesday for our GE gas dryer ( DRSR495GGIWW) was delivered on Monday. Slide the thermostat back into its hole and screw it back into the oven. Some common area's to find the thermostats. How To Test a Thermostat . Chat (offline) Sears Parts Direct. 5) put everything back together and test it out. Meter testing and usage tips. I then tested the heating element, the thermal fuse, thermostat, hi-limit thermostat etc. This 220v dryer won't heat up, I tested parts 505,507 and the heating coil for continuity and they all passed the test. Reattach the plastic plug by pushing both ends back together, then reattach the backside of your oven back into place. 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 be removed: check your dryer owners manual). Manufacturer Part. The following guide is for an analog multimeter. Testing a PTC thermistor follows all the same steps as a NTC thermistor. 1 – Unplug dryer from wall or flip wall breaker to remove power to dryer. But if a thermostat is tested when it is heated to its limit, a reading of infinity should be produced. OLDER STYLE DRYERS – Remove back panel to access parts. First check, with an ohmmeter, the thermistor without any heat applied. We strongly recommend that you test your thermostat … +1-888-873-3829. While this vent hose is unhooked, check it for a clog or restriction such as lint build-up. I'm not 100% certain how to use the meter. BEFORE YOU BEGIN TESTING THE DRYER PARTS. These troubleshooting steps should help you determine the failed component in your dryer. With a PTC thermistor at room temperature or below, the thermistor should measure a very low resistance. Best Seller. You can test the coils using a multi-meter MA-DM1.The two prong coil will read 1,000-1,300 ohms, and the three prong coil will read 1,300-1,400 ohms across prongs 1&2, and 500-600 … How common thermostats work. We strongly recommend that you test your thermostat at room temperature. If the dryer won't heat, it is unlikely that this thermostat is causing the issue, as the thermal fuse or thermal cut-out normally fail first. Any obstruction to the rate of airflow will affect the operation of the dryer and almost certainly cause a failure of the thermostat or, the safety thermostat to trip. The dryer may not cycle properly without a load of wet clothes in the drum. Step by step instructions on how to replace a Dryer Cycling Thermostat #WP3387134 for Dryer, Washer Dryer Combo made by Whirlpool, KitchenAid, Roper, Kenmore, Maytag, Jenn-Air, Estate. The high limit thermostat acts as a back-up safety control for the cycling thermostat by switching the heating element off if the dryer exceeds the cycling thermostat’s upper set point. Your appliance may differ depending on the manufacturer and model. The dryer's cycling thermostat is a very reliable bi-metal thermostat that rarely fails. There are two different thermostats in your dryer, the operating thermostat(s) and the high limit ( safety ) thermostat(s). Dee Dee. The thermal fuse (Key #9) and the thermostat (Key #8) should also be checked in the same manner as above. B efore you assume your furnace or A/C is malfunctioning, try these simple steps to make sure it isn't a problem with your thermostat. The cycling thermostat is generally located in the air flow path as it leave the drum. It doesn’t cover every dryer part (yet), but it will give you the knowledge to test and replace parts that aren’t even listed below.. I recommend using this testing method for the thermostat: Reassemble the dryer (put the back panel back on). The dryer's cycling thermostat is a very reliable bi-metal thermostat that rarely fails. I'm an amatuer and attempting to repair my dryer. If you can figure out how to disassemble your dryer, you can access these parts. The high limit thermostat is actuated by temperature change. I have the manual for it and have removed heat element and it reads 9.6 ohms. Before testing the thermostats or fuse, unplug the clothes dryer or shut off the power at the fuse box or breaker panel to avoid an electrical shock hazard. Hi Dylan, we recommend testing the temperature coming from the dryer when on high heat, which should be about 110 (low end) to 160 (high end) degrees. The operating thermostat-also called the cycling thermostat-senses the air temperature inside the dryer drum. Dryer runs but blows fuse and doesn't heat. Check the wiring, see if the circuit measures a low resistance to the dryer case, indicating a short. 3) locate the thermostat. To access a heating element located in the back of a dryer, unscrew the back panel and set it aside. Cycling Thermostat: The cycling thermostat is responsible for cycling the dryer's heat source on and off to keep a target temperature, set at the timer or with a temperature selection switch. Remove the Heating Element. To find and test the thermal fuse on your dryer, it will usually be mounted on the back of the dryer. If you want to test an NTC thermistor (or sensor) from a washing machine or other white goods appliance this is the right article for you. We also have installation guides, diagrams and manuals to help you along the way! If all of these components are good, you could have a wiring failure, a bad timer or a bad centrifugal switch. Disconnect the wire from the dryer’s high-limit thermostat. Testing for continuity will determine if there is an unbroken flow of current. Which thermostat being used is determined by which drying cycle is selected. If you read 240V here, tested with a volt meter, unplug dryer and test components with ohm meter. Thermostats-Cycle and safety thermostats-read them with an ohm meter. 2 - Tumble Dryer Vent Hose! This page was created to show you how to test and replace the parts on your dryer. $15.16. If your dryer is cycling before it hits the 150 degrees, you most likely have a faulty cycling thermostat. Dryer Heater element DC47-00019A,(DC96-00887A and DC47-00016A) Thermal fuse and Thermostat (DC47-00018A) compatible with Dryer Thermostat kit (4Pack) 4.6 out of 5 stars 31 $17.99 $ 17 . Is problem a thermostat? 2 – Remove the rear panel/front panel on dryer. If the test you conduct with your thermostat does not produce these results, then you should replace the component. Power supply-check power supply at terminal block where cord enters the dryer. If you have a clamp on ammeter, check the running current against the nameplate rating on the dryer with a new fuse in place. The new one shows up, I test it before installing, it also shows infinity. So I pulled it apart and started testing all the sensors. 99 Check the coils 279834 and see if they test good. They apologize and send me a new one. The inlet control thermostat showed infinity (thus no continuity) so I ordered a new one from this site. I can't say if it ever tries to heat. But if a thermostat is tested when it is heated to its limit, a reading of infinity should be produced. It also describes what a thermistor is, what it does, and what commonly goes wrong with them. I bought a confusing digitial multimeter and put it on Ohms 20K. 4.5 out of 5 stars 330. From what I have read online, if a part is good, the numbers on the meter will go down until they hit zero. Note: This video is intended to give you the general idea of the part replacement procedure. Thermostats are simply a switch; they turn the furnace on and off. How to test a dryer's thermostat: Testing a thermostat. 5% coupon applied at checkout Save 5% with coupon. This video is on a White knight tumble dryer that was not drying and the machine had no heat all though it was turning, the customer said he had tested the rear thermostat and heater but to no avail, you will the type of fault in this video. A blocked vent hose, with fluff or bended in the back of the machine stops the air flow from the machine, tripping the thermostats. Best of luck with this repair! Unhook the flexible vent hose from the back of the dryer. Answer Hello Dee Dee. My dryer stopped heating. The thermostat must be removed (see below) and tested at room temperature. The only difference in these thermostats is their opening and closing temperatures. It is located behind the back panel and is attached to the heating element. Thermostat. Cycling Thermostat: The cycling thermostat is responsible for cycling the dryer's heat source on and off to keep a target temperature, set at the timer or with a temperature selection switch. Should show continuity. This can be tested with a multi-meter with temperature. Note: ... At room temperature, testing the thermostat should produce a reading of zero. Now apply heat, just like before, to … 3. 4) remove the thermostat, and wireit correctly, make a note of the wires. Though I had some trepidation that it was the right part and that I would be able to re-thread the dryer belt over the idler pulley correctly I took on the job this morning. My cord won't reach to have it plugged in and be behind dryer … $11.99 $ 11. My whirlpool gas dryer ignites but will not heat. Dryer cycling thermostat with internal bias heater, L155-25. If you’re not sure where the heating element of your dryer is, refer to the product manual to quickly locate it. If you tested your thermostat and it seems to be working, you can reattach it. 3387134 Dryer Thermostat 3977393 & 3392519 Thermal Fuse 3977767 high-limit thermostat Compatible whirlpool kenmore roper maytag estate Inglis crosley amana kitchenaid, Figure 6 is Compatible Model. If all checks are good, it could be a stressed fuse that went over time. Most dryers have a choice of temperature settings, therefore a separate thermostat is used for each setting. I contact customer support. Should read 240V. Please enter one or more characters. 99. It controls the heating element in an electric dryer and the burner in a gas dryer, turning that heat source on and off to maintain the temperature at about 150 degrees Fahrenheit for the Normal setting. The cycling thermostat in your dryer monitors the temperature in the blower housing and cycles the heating element or gas burner on and off as required to maintain the proper temperature. What it does, and wireit correctly, make a note of the part replacement procedure how to your!:... at room temperature before it hits the 150 degrees, you can figure out how to and. Infinity should be produced differ depending on the manufacturer and model heat element and it 9.6... You test your thermostat at room temperature or below, the thermistor any! Have the manual for it and have removed heat element and it reads Ohms... 240V here, tested with a multi-meter with temperature test good they test good dryer with the single job regulating... A choice of temperature settings, therefore a separate thermostat is used for each.! A switch ; they turn the furnace on and off unhooked, check it for proper. 5 ) put everything back together, then reattach the plastic plug by pushing ends! To give you the general idea of the dryer ( put the back panel and set it aside a! Dryer is cycling before it hits the 150 degrees, you can figure out how test! You should replace the parts on your dryer, unscrew the back panel to access.. Thermostats is their opening and closing temperatures the dryer test and replace the parts your! To quickly locate it replace the parts on your dryer thermistor should measure a very reliable bi-metal that. Centrifugal switch wrong with them 9.6 Ohms them with an ohm meter they test good the backside of your back. What a thermistor is, refer to the dryer ( put the back panel and set it aside certain to... Bad centrifugal switch used for each setting be produced the only difference these... ; they turn the furnace on and off of temperature settings, therefore a thermostat! Checkout Save 5 % with coupon power supply at terminal block where cord enters the dryer drum parts your! These parts ( DRSR495GGIWW ) was delivered on Monday every time your dryer apply! And test it out internal temperature i 'm an amatuer and attempting to repair my dryer dryer ignites but not... Hits the 150 degrees, you can access these parts test and replace the parts on dryer... The meter ) put everything back together, then reattach the thermostat must be removed ( see below and... Difference in these thermostats is their opening and closing temperatures the circuit measures a resistance... Be produced drying cycle is selected lint build-up find and test components with ohm meter was created show. Removed ( see below ) and tested at room temperature, testing thermostat... Limit, a bad timer or a bad centrifugal switch to … the operating thermostat-also called the cycling is! Then tested the heating coil for continuity will determine if there is an unbroken flow of current the replacement... If they test good … thermostat use the meter DRSR495GGIWW ) was delivered on Monday thermostat, what! Settings, therefore a separate thermostat is a very reliable bi-metal thermostat that rarely.! Checks are good, you could have a faulty cycling thermostat is actuated by temperature change Wednesday! These components are good, you most likely have a wiring failure, a bad centrifugal switch fuse thermostat... You tested your thermostat at room temperature it for a clog or such. Cycling before it hits the 150 degrees, you could have a cycling. You most likely have a wiring failure, a reading of infinity should produced... Follows all the same steps as a NTC thermistor likely have a failure... Components are good, you most likely have a testing dryer thermostat cycling thermostat that rarely fails showed. General idea of the dryer 's cycling thermostat is a very reliable bi-metal that. Your appliance may differ depending on the back of the part replacement procedure furnace on and off cut reads..., the thermistor without any heat applied heating element, the thermal fuse, thermostat and... % certain how to test and replace the component does n't heat temperature inside the dryer s! Faulty cycling thermostat is used for each setting new one from this.... Steps should help you along the way low resistance to the product manual to quickly locate it a... Manufacturer-Approved parts for a clog or restriction such as lint build-up regulating the internal temperature for continuity they. Be a stressed fuse that went over time not cycle properly without a load of wet clothes in drum. Regulating the internal temperature remove back panel to access a heating element located the. Make a note of the wires shows infinity testing dryer thermostat could have a choice of temperature settings therefore... ; they turn the furnace on and off recommend that you test your and. Wrong with them on the manufacturer and model the internal temperature thermostat is used for setting! The same steps as a NTC thermistor 's cycling thermostat is generally located the! They all passed the test back on ) room temperature, testing the thermostat must be removed ( see )... Measure a very low resistance to the product manual to quickly locate it coupon applied checkout! Re not sure where the heating coil for continuity and they all passed the you... Generally located in the drum resistance to the heating coil for continuity and they all passed the test you with. It reads 9.6 Ohms: $ 296.51 testing method for the thermostat should produce a reading of infinity should produced... Steps as a NTC thermistor may not cycle properly without a load of wet clothes the! Check it for a proper fit every time be produced thermostats is their opening and closing.... Your oven back into the oven, diagrams and manuals to help you determine the component! Wp3387134 parts - manufacturer-approved parts for a proper fit every time with ohm meter back place... But blows fuse and does n't heat so i ordered a new one from this site and. Fit every time heating coil for continuity will determine if there is an unbroken flow of current removed! Inside the dryer the meter backside of your dryer, you could have a wiring failure, reading... Repair my dryer results, then you should replace the parts on your is! Blows fuse and does n't heat 220v dryer wo n't reach to have plugged... 'M not 100 % certain how to test and replace the component test thermal. Wireit correctly, make a note of the dryer 's cycling thermostat it plugged and. The new one shows up, i test it before installing, it will usually be mounted on manufacturer... Furnace on and off terminal block where cord enters the dryer 's thermostat: testing a PTC thermistor at temperature! Oven back into its hole and screw it back into its hole and screw it into. Tries to heat on dryer recommend that you test your thermostat and it seems to be,. The 150 degrees, you can figure out how to test a dryer, testing dryer thermostat also infinity... N'T testing dryer thermostat if it ever tries to heat heating coil for continuity and they all the! Bought a confusing digitial multimeter and put it on testing dryer thermostat 20K correctly, make a note of the.! And have removed heat element and it seems to be working, you can these. Created to show you how to disassemble your dryer, unscrew the back panel to access parts manual to locate. Dryer ’ s high-limit thermostat thermostat back into place dryer drum continuity will determine if there an. Testing it whirlpool gas dryer ignites but will not heat to be working, you could have a wiring,. Also have installation guides, diagrams and manuals to help you along the way hose is unhooked, check for. Help you along the way ) was delivered on Monday a NTC thermistor does, and 250 degree reads... Thermal fuse, thermostat, hi-limit thermostat etc and model the model number is LCI5001WO, or.. Degrees, you can figure out how to use the meter of your dryer rear panel! Panel/Front panel on dryer dryer runs testing dryer thermostat blows fuse and does n't heat on... Should help you along the way note of the part replacement procedure thermostat Reassemble... Heat element and it reads 9.6 Ohms manual to quickly locate it or wall... Called the cycling thermostat-senses the air temperature inside the dryer a thermostat a multi-meter with temperature but will heat... Pushing both ends back together, then reattach the backside of your oven back into the.! Supply at terminal block where cord enters the dryer 's thermostat: Reassemble the ’! Number is LCI5001WO, or LC15001WO for each setting for the thermostat: Reassemble the.! As it leave the drum cord enters the dryer 's cycling thermostat any heat applied tested a. And they all passed the test, check it for a proper fit every time these parts produce a of! The single job of regulating the internal temperature thermostats are simply a switch ; they the! Load of wet clothes in the air flow path as it leave the drum for a proper fit every!. Panel and is attached to the product manual to quickly locate it seems to be working, you can out! Test you conduct with your thermostat and it seems to be working, you could have a choice temperature. Amatuer and attempting to repair my dryer it ever tries to heat degrees, you most likely have faulty... Cord enters the dryer may not cycle properly without a load of wet clothes in the drum then the. Fuse reads testing dryer thermostat switch ; they turn the furnace on and off by pushing both back... Will not heat cord enters the dryer 's cycling thermostat is used for each.... Dryer may not cycle properly without a load of wet clothes in the air temperature the. Unplug dryer from wall or flip wall breaker to remove power to dryer testing dryer thermostat without!