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KENMORE SERIES 70 DRYER NOT HEATING PROPERLY. REPLACED HEATER(OLD ONE SHORTED OUT) CAN THERMOSTAT NOT BE WORKING PROPERLY

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If your ELECTRIC dryer is still running, but does NOT produce heat, the following two links can give you advice on how to troubleshoot an ELECTRIC dryer with a no heat problem:

http://www.fixya.com/support/r3576548-dryer_runs_but_does_not_heat

http://www.fixya.com/support/r3574266-thorough_dryer_advice


IMPORTANT NOTE: Your problem may or may not be related to a heating element problem as there are numerous factors that can cause a dryer not to heat. The heating element has protection devices that are designed to regulate the heat and internal temperatures. If the dryer overheats the Thermal Cut-Out (TCO) typically will blow BEFORE the heating element. The replacement kit is much cheaper than purchasing a new heating element that may or may not be the problem.


Begin by unplugging the dryer and verifying the voltage at the wall receptacle. You should read 220-240VAC across the two Hot terminals (left and right slots). If the voltage is incorrect, check to make sure you don't have a breaker tripped. Some homes use 2 separate 120VAC breakers to provide power to the receptacle vice using one 240VAC breaker.

If the voltage IS correct, leave the dryer unplugged and remove the cover plate on the terminal block in the back of the dryer (this is where the power cord is installed). Plug the dryer back in and take a voltage reading across the two hot (RED and BLACK) wires at the terminal block. You should read 220-240VAC. If the voltage is good, you have an internal heating problem. If the voltage is bad at the terminal block, but good at the receptacle, you have a bad power cord.

NOTE: If the wires at the terminal block are not color coded, the outer two wires (left and right) are the hot leads. The center conductor is neutral or ground.

The reason a dryer will still run if the input voltage is incorrect, is because the drive motor only uses a portion of the 220 service. The motor runs off 110-120VAC, while the heating circuits require 220-240VAC. So, if you are missing 1/2 your input voltage due to a tripped breaker or bad power cord, your dryer may exhibit these symptoms.

If you determine the problem to be internal, the heating circuits will either be located in the rear of the dryer on the right hand, or under the dryer drum on the right hand side. Usually, an easy way to determine is by the location of the lint screen filter. If the filter is on top of the dryer, the heating circuits are in the back of the dryer. If the lint screen is in the door, the heating circuits are located under the dryer drum. If the model number you have listed is correct, your heating circuits are behind the rear panel on the right-hand side.


If either the TCO or Hi-Limit Thermostat are determined to be bad, replace BOTH components at the same time. That is why these components are commonly sold as a set. Failure to do so may result in premature failure of any parts you replace.

Replacement parts (if required) may be found at the following websites:

searspartsdirect.com
pcappliancerepair.com
appliancepartspros.com
repairclinic.com

The average cost of these components varies, so shop and compare. The first three websites I listed have helpful exploded view parts diagrams that can help you locate and properly identify any parts you may need. The heating components are usually listed under the "Bulkhead" section.


If you have any questions, please post back and let me know. I hope you find this information helpful.


NOTE: If your model number is not listed on some of the websites, use the part numbers from the Sears website and use that as your search criteria. Some model numbers will not reference on some sites, but the part numbers will.

Posted on Oct 06, 2010

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1 Answer

Why dose a electric kenmore dryer 70 seires the dryer runs about 1minute then turns off


DRYER OVERHEATING:

Heating Element
A defective heating element can make a dryer too hot. If the element partially shorts out, it can produce heat all the time, regardless of whether the dryer is calling for heat. Remove the heating element to inspect it. The coils should not be touching each other or anything else.

Other Causes and Conditions
Air Flow Problem
Dryers need good ventilation to work properly. If the vent is clogged it can make the dryer too hot. Clean all of the vent tubing thoroughly.

Cycling Thermostat
Although not common, a defective cycling thermostat can make the dryer too hot. The cycling thermostat is supposed to turn on and off the heat to maintain the proper temperature. If the thermostat is defective it may keep the heat on too long. The thermostat is not adjustable or repairable, it must be replaced.

Felt Seal
Most dryers have a felt seal at the front and rear of the drum to keep the heat inside the drum. If the felt seal is worn away or missing, the dryer may keep heating and make the dryer too hot. This is not common.

Blower Wheel
A defective blower wheel will not spin properly and will not vent the hot air, making the dryer too hot. Check to see if there is adequate airflow out of the dryer.


https://www.youtube.com/watch?v=3m5NZvY9V5Q

Jun 22, 2014 | Kenmore Dryers

1 Answer

Kenmore 70 Dryer won't heat


Hi Jason
There is no fuse to replace only thermostats/thermistors...and heating element.
Here is some things to check:

Apr 25, 2013 | Dryers

1 Answer

I have a Kenmore Series 70 Dryer and I changed the thermal fuse got hot for a few minutes the model #110.74722400


The cycling thermostat must also be replaced when replacing the thermal fuse. The cycling thermostat's failure to cycle off the heating element results in overheating of the dryer which consequently blows the thermal fuse open.

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Replacing only the thermal fuse should the dryer stops running and fails to start will result in its premature blowing or even the thermal cut-out (cut-off) located on the heater duct. Like the cycling thermostat, the high-limit thermostat must also be replaced once the thermal cut-out blows open. Refer to the parts diagram in the link below and look for item numbers 31(thermal cut-off), 34(hi-limit thermostat), 39(thermal fuse), and 41(cycling thermostat.

Kenmore Series 70 Electric Dryer (110.74722400) Bulkhead Parts

Aug 21, 2011 | Dryers

1 Answer

KENMORE SERIES 70 NOT HEATING PROPERLY.REPLACED HEATER CLEANED ALL VENT HOSES COULD IT BE THERMOSTST


Yes it could. If the thermostat is faulty it can cause the dryer to short cycle. If you have a thermometer that you can use to check the heat coming out of the dryer when running with no load it should go off at around 170 degrees F and come back on after dropping 30 to 50 degrees. If it is cycling too soon the thermostat is the most probable problem.

Oct 06, 2010 | Kenmore Dryers

1 Answer

Kenmore 70 Series new heating element but its still not heating


did you check the heater box fuse and high temp thermostat on the side of the heater box?mike

Mar 07, 2010 | Kenmore Dryers

1 Answer

I have a kenmore 70 series gas dryer. It won't


Check the thermal fuse and thermostats first, then the ignitor and the valve coils are the next possibilities.
Eric

Jan 24, 2010 | Kenmore 63942 Dryer

1 Answer

Kenmore series 70 dryer will not heat up replaced heating element thermostats check ok with ohm meter


If heating element was replaced and still no heat, Then what I would do is test the voltage current in the wiring and see if there is actually power to the element.

All parts to make dryer heat are:
heating element
thermal fuse
thermostat
timer

any one of these units can be faulty


Oct 10, 2009 | Kenmore Dryers

1 Answer

Kenmore electric dryer heats but does not dry the


Hi, Here are the obvious parts to check: Heater, High limit, Thermal fuse or thermostats...these are all generally located in the back but some models you access them from front. the most common cause is either heater or thermal fuse, I will include a picture of the thermal fuse. If you test these parts and find they all work you may be looking at a centrifiacal switch problem.

Here is a picture of the thermal fuse check this part first:

http://www.partselect.com/repair.aspx?appliance=dryer&part=replace-thermal-fuse

Please feel free to contact again if you have any other problems.

Hope this helps.

Jun 23, 2009 | Kenmore 63942 Dryer

1 Answer

Kenmore series 70 electric dryer will not heat up, but will rotate.


remove the back cover and check the heater box fuse and the heating element,do you have a meter?

May 10, 2009 | Dryers

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