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Dryer shuts off properly on timed high heat dry although no heat, does not move dial or shut off on auto sense high heat dry.tested element, checked for airflow, still no heat

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  • dbrown70 Jun 02, 2008

    checked thermal fuse it was ok found i had a bad breaker replaced it works great

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Ck thermal fuse top of element housing part #279816 could be timer but doubtful

Posted on Jun 01, 2008

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Whirlpool dryer, when set for auto dry low heat, or timed heat, then dryer runs fine, when set on auto dry high heat timer doesn't move, what could be the problem? does it have to be the timer?


ELECTRIC Dryer no heat or little heat, or shuts down to fast:

Check your venting and lint basket. Check blower for lint build up and blower wheel obstruction., test by trying to turn the wheel manually by hand (should be easy) May have to remove cabinet or front/back plate to get to it)

Next check the heating element itself with a meter for continuity OHMS CLOSED CIRCUIT. If not its defective or has a short if its grounding out? Which in turns causes blown fuses or thermostats or overheating.

Check dryer Terminal block prongs both outside prongs should give combined 220, and 110 each if u check 1 outside & 1 center (ground) prong. Also check house electrical outlet for full voltage. 220 because if u only get half or 110 volts you will be able to run the machine which uses only 110 to run motor but not the heater which uses a full 220,

Check the thermal cut off, the cycling and the hi limit thermostats.
For continuity or OHMS. If no ohms or resistance they need replacement.

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.

Read more :http://www.ehow.com/info_12203962_check-dryer-thermistor.html

Feb 10, 2015 | Whirlpool Dryers

1 Answer

My dryer does not blow hot and will not shut off and no digital reading will display.


Hello Bryan;

My name is Peter. I am a retired field service appliance technician.

So, here are the probable causes:

1.) The blower wheel draws air through the dryer and pushes the air out the vent. If the dryer won't stop, the blower wheel may be plugged up or not be spinning properly, which reduces the air flow. Check to see if the blower wheel is securely fastened to the drive motor shaft. Check the blower hot air discharge manifold for blockage.

2a.) If the dryer won't stop, the gas valve solenoid coils might be defective. Over time these coils will fail, causing the burner to run intermittently. If the dryer is not heating properly it may not stop. Replace the coils as a set.

2.b) The heating element warms the air before the air enters the dryer drum. If the dryer won't stop, it may be because the heating element isn't working - which greatly increases the drying time. Check the heating element for continuity.

3.) Dryer sheets and fabric softener can leave a residue on the lint filter, reducing the air flow. If the dryer won't stop, check to be sure air can flow freely, clean the filter as needed.

4.) Although not as common, if the dryer won't stop it may be because the moisture sensor is either defective or shorted

5.) If the dryer won't stop, check the high limit thermostat. If defective, the high limit thermostat can turn off the heat prematurely, lengthening the time it takes to dry a full load. This is not common.

6.) The cycling thermostat regulates the temperature of the air in the dryer. If the dryer won't stop, it may be caused by a defective cycling thermostat turning off the heat too early. This is not common.

7.) The thermistor senses the temperature of the air in the dryer and cycles the heat on and off. If the dryer won't stop, the thermistor may be defective. This is not common.

Nov 16, 2014 | Dryers

1 Answer

Automatic Dry Function Has Stopped Working


There is a humidity sensor which acts as an auto cutoff switch in most driers, as your load auto dries , it senses the change in humidty and kicks the power off. It is often shaped like a flying saucer with wire terminals on the wings. That is likely your culprit, generally located close to the element. Based on your description, I would start there. Also test a load on timed dry, but it sounds like that's your problem. Remember to unplug before looking under the hood. Post back if you need further info

Sep 20, 2009 | Dryers

1 Answer

Won't heat up and doesn't shut off


You likely need to replace the element. test the dryer in auto and timed dry cycles. If the element is gone you will have no heat in either.
If the humidity sensor is shot or the dryer vent hose is clogged , the dryer will run forever and not dry or shut off.
Check for blockage first. then run a test cycles on both settings and post back

Sep 13, 2009 | Dryers

1 Answer

Element heats, dryer tumbles, no heat in drum, never shuts off


Hi, If the dryer heats but will not advance in either time or auto cycles, you need to change the timer.
You can test to see if the timer is getting voltage. Remove the top rear panel and locate the two wires going to the timer motor. There should be 120V when the dryer is running in time dry.
Please let me know if this helps or if I can assist you further.

Thanks
Vic

May 27, 2009 | Whirlpool LER5636P Electric Dryer

1 Answer

Hello my Kenmore Dryer is working fine although taking alot longer to dry the clothes. I took everything apart and clean it, no vent blockage, and great air circulation through dryer. I was wondering; is...


THE ELEMENT CYCLES. NO IT DOESN'T STAY ON THE WHOLE TIME, BUT IT SHOULD BE ON FOR MORE THAN A BRIEF SECONDS TOO. POST ME THE MODEL NUMBER FOUND SOMWHERE AROUND THE DOOR AND I'LL HELP FURTHER. THERE ARE THERMOSTAT/S HIGH-LIMIT SHUT OFF SWITCHES AND IF THEY ARE NOT FUNCTIONING PROPERLY IT WILL CAUSE DRYING TIME PROBLEMS

Apr 11, 2009 | Dryers

1 Answer

DBXR453ET3WW Electric Dryer Won't shut off unless on timed cycle.


hi thanks for the question in the ge dryer theres 2 elements so if one is not working you only get half heat i would check the heater thanks the appliance doc

Jun 18, 2008 | GE DBXR463EBWW Electric Dryer

1 Answer

Auto Dry not advancing


It sounds like a timer problem since it happens during timed also. Some dryers don't have an actual moisture sensor for auto dry. They work by knowing that as long as the clothes are wet the temp won't go past a certain point. As the clothes dry it trips a thermostat that lets the timer advance. Until this is fixed DON"T trust the timer to shut off the dryer. Sometimes it won't or could leave the dryer running for hours. This has nothing whatsoever to do with fuses. There are no fuses in a dryer. Just high limit thermostats and other devices that will shut off the heat but usually not the motor.

May 30, 2008 | Kenmore 73952 Gas Dryer

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