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Dryer overheats - need to replace thermostat?

We have a Kenmore series 80 electric dryer (model 96586200) that overheats - it runs hot enough to scorch clothes sometimes if we run them past dryness no matter what setting we pick. A Sears repairman was here a few months ago and suggested it was either the thermostat or a clogged outlet duct. Ducts were professionally cleaned - no difference. The repairman had a replacement thermostat sent to our house, but we have no manual or instructions, just the part. I can't find the repair manual online... any ideas? We bought the dryer practically new but secondhand in 1997.

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I will assume your heater is behind dryer. the high limit stat is located on the heater at the bottom. there should be a number on that sat appr. 250 degree. it is a safety stat. now over by the exhaust vent ther eshould be one at appr. 155 degree. this is an operating stat.this one cycles at the dryer at desired temp. most of these dryer have non resetable fuses. i am surprised one has not blown.

Posted on Jan 31, 2010

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The actual operating thermostat is located on the rear of the unit, you will need to remove the rear cover to view.. it is the only thermostat with 4 wires, on the left side towards the bottom.
I would also check my lint screen for blockage as they will clog with fabric softener residue after a period of time if you are using fabric softener sheets in the dryer..
Over heating in those units were most closely caused by poor venting, or another obstruction in the normal air flow, or the front and/or rear seals have worn allowing poor circulation of your drying air and allowing cool outside air to be sucked into the unit cutting down on its efficiency and raising operating temps..
good luck, and have fun,
ttfn

Posted on Jan 31, 2010

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The location of the heat sensor is mounted in a poor location on these models. Many complaints of this model has been seen in the past. I would replace it now for its is past ten years old. Just a recomendation

Posted on Jan 31, 2010

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


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jahn27_559.jpg


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.

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110.64872400 kenmore dryer 80 series. dryer makes humming noise when start button is pushed, can turn drum manually. please help


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Unplug the dryer or disconnect power then pry the lower access panel off with a flat-head screwdriver as shown.

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Remove the screw from the lint duct bracket and remove the bracket. Remove the two hex-head screws from the lint duct and remove the duct to access the thermal fuse and the cycling thermostat.

jahn27_542.jpg
jahn27_543.jpg


Click on the links below for the detailed troubleshooting of this problem and the parts diagram. The cycling thermostat(part number
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Hello. I have a Kenmore series 80 dryer approx 7


Sounds like your problem may be with the heating coil.
If you plan to try to repair the problem yourself, then the first thing you want to do is unplug the dryer from the electric.
Remove the back of the machine and try to locate the air duct going from the blower to the drum. Normally inside the air duct you will find the heating coil and the thermostats/thermistor.
Once you have located the heating coil, remove the two wires from it and check the coil with an ohm meter across the two terminals of the coil.
You should read continuity across the terminals, if not you will need to replace the coil as it is faulty.
If the heating coil is ok, then:
You can check the thermostat/thermistor by removing the two wires and taping them together with electrical tape.
If the coil heats up then replace the thermostat/thermistor.
DO NOT LEAVE THE WIRES TAPED TOGETHER AFTER THE TEST. This could cause a fire, as you have removed the saftey of overheat from the machine.
I will include these two websites for parts and further help:
http://www.partselect.com/
http://www.appliancepartspros.com/index.aspx
Both also have chat assistance 24/7.
Good Luck,
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