I have a Whirlpool Duet electric dryer (model GEW9200LL1) and periodically none of the Automatic cycles work. If the dial is set to any of the automatic cycles the lights will not light - the light on one of the manual cycles is lit (like Timed Dry). All manual cycles work but not the automatic. At the next use (maybe later that day or a day or two later) the manual cycles will work again.
In some dryer's the control panel relies on a thermistor rather than a CYCLING thermostat to regulate the drum's air temperature by monitoring the component's resistance changes; resistance goes down as temperature increases and up when temperature decreases. Once the drum's air temperature reaches a certain level required to dry clothes, the control panel shuts off the heater. The panel will turn the heater on again and begin another heating cycle when the thermistor indicates that more heat is needed to keep the air temperature constant inside the drum
Lastly check your moister sensor. ( located inside the dryer door usually) Especially if machine seems to shut down early and clothes are still wet.
Test with a meter at room temperature and it should show continuity.
A failed moisture sensor will affect the dryer run time in the automatic moisture sensing cycle but it will not affect the heating of the dryer or the timed cycle. Which are reflected by the thermostats.
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SOURCE: dryer
Normally when a dryer starts to exhibit longer dry times, it could be an indication of some required maintenance. A dryer needs air to breath. Proper ventilation is required for the heating circuits to regulate the internal air temperature properly. If you have to keep placing items back in the dryer to dry again, or the dryer just doesn’t seem to be putting out hot enough air, it may be time to think about checking the dryer vent ducting (a simple separation of more dense clothing from lighter weight clothing can help shorten dry times too). If the heating circuits are starved for air they actually OVERHEAT and can cause problems. When an overheat condition occurs, the hi-limit thermostat is supposed to open to shut off the heating element. This is how the dryer regulates its heat. However, if the hi-limit thermostat malfunctions, the Thermal Cut-Out will blow. This device acts as a fuse, is not resettable, and has to be replaced. This also means that the hi-limit thermostat could be suspect and it should also be replaced at the same time. Most manufacturers recommend replacing the two components together and are sold as a set.
Now...if your dryer has been having problems drying, the first thing you need to check is the ventilation ducting to ensure that it is not kinked or clogged. Poor air flow is the number one cause of dryer failures. Not to mention it can cause fires due to lint backing up inside the dryer. This could be the "electrical" smell a lot of people complain about. If lint accumulates on the heating element it will smolder and burn. It is often reported that you should clean your ducting twice per year. I recommend the ducting be checked (this means inspected to see if it needs cleaning) thoroughly about once per season. That's 4 times per year. If you've never cleaned the ducting, or your dryer is pushed all the way up against the wall causing the ducting to become kinked, you will have air flow problems. One way in determining air flow is to remove the vent hose from the back of the dryer and start the dryer (of course, you need a working dryer in order to do this). The air should be forceful and slowly warm up to about 140 degrees. If the air flow is weak, you may have a clog inside the air baffle of the dryer (this is where the lint screen slides into). If the air flow is good, reattach the dryer hose and check at the output of the dryer vent as it exits your home. If the air flow is weak or non-existent then you know you have a clog in the vent line somewhere. Periodic cleaning will go a long way towards preventing future clogs. Dryer vent rule of thumb: The SHORTER and STRAIGHTER the vent line, the BETTER. Everywhere you have a bend or kink is an area where you will create potential collection points for lint. Poor dryer maintenance is also one of the frequent causes of house fires.
How to troubleshoot a dryer: If your dryer has the lint screen on top of the unit, you will need to remove the back panel to get to the heating circuits. If your dryer has the lint screen in the door, you will need to remove the lower kick panel under the door by pushing in on the release tabs with a putty knife. They are located along the front seam about two inches in from each side. CAUTION: It is recommended that you unplug the dryer BEFORE servicing the inside or cleaning. There are still dangerous voltages present even with the machine turned off.
Symptom:
Dryer Runs, But Does Not Heat:
Suspected Components:
1. Heating Element (located inside the heater box) - Resistance reading should be 9-13 ohms.
2. Thermal Cut-Out (located on the heater box) - Resistance reading of 0 ohms.
3. Hi limit Thermostat (located on the heater box closest to the heating element leads) – Resistance reading of 0 ohms.
4. Operating Thermostat (located on the air baffle) - (May have 4 wires attached to it). Will read 0 ohms across one set of leads, approx. 7 ohms across the other.
5. Bad Heater Relay (usually located in the console) – this is not equipped on all model dryers. However, on dryers that DO have them, this acts as a switch and turns the heater circuits on at the push of the START switch.
Dryer Does Not Run At All:
Suspected Components:
1. Thermal Fuse (located on the air baffle) - Resistance reading of 0 ohms. NOTE: If the thermal fuse is blown, the drum light will not come on.
2. Broken Drum Belt - If dryer is equipped with a broken belt relay, this will shut the dryer down.
3. Broken Door Switch - If the door switch is broken, this will shut down the entire dryer as no power is applied to the start switch with the door switch open.
4. Bad Start Switch - If the start switch does not toggle close or stay closed when released, the dryer will not start.
5. Bad Timer - If the timer does not function the dryer will not start.
6. Bad Drive Motor - No Motor, drum does not rotate, heating circuits may or may not function. DOUBLE CHECK the CONNECTOR PLUG on the Drive Motor. I have found situations where this plug came loose for whatever reason and caused the dryer to either shut off completely or work intermittently.
7. Bad A/C Receptacle and/or Connector Plug - If you aren't getting the proper voltage to the dryer, it will not run.
These recommendations for TROUBLESHOOTING are not all inclusive as different manufacturer models vary in components and configuration. However, the general cleaning maintenance and proper ventilation requirements should apply to ALL dryers.
SOURCE: Whirlpool duet electric dryer - drum turns; no heat
Turn off the breaker and check the heating element.
for more help go to live chat.
hope this helps
len west
SOURCE: My dryer works but no heat
On the backside near the bottom of the element is a limit that has 3 wires. The smaller wire goes up to the timer and it powers up the timer motor in the auto cycle. On the blower housing is a cycling thermistat with 4 wires.(2 small and 2 big wires) The 2 smaller wires are connected to a tiny heater in the cycle thermistat. To get from cotton to permapress we simply heat up the little old heater and the cycle thermistat shuts down faster. Clever heh? Where wuz I? OK: While the heater is fired up the timer motor will not move. When the heater stops working the timer moves forward. So as the clothes get dryer, the heater comes on less and less and the timer motor gets more and more power till finally the heater is no longer is needed. Then the timer goes on over to the end. Pretty dang clever ain't it? Well what can go wrong? The cycling thermistat is causing the limit to control the heat( you would know because the clothes would be all hot and wrinkly) OR the vent to outside is clogged. As a result the smaller Hi limit atop the heater chamber is blown. a Replace the control thermistat AND that 3 wire limit on the bottom of the heaterlong with it's very blown little cousin atop the heater chamber.. Oh yeah. Remove the vent pipe and get the gunk out:
SEE THE PICTORAL
If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61
SOURCE: Whirlpool dryer WED5300VW0 runs and heats but
The timer has gone out,replace the timer with a new one.
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