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I have this Dryer, Kenmore Series 80, There was a thermal switch burned up when I got it, I replaced

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Old 04-19-2012, 10:05 PM
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Angry dryer overheats
Brand: Kenmore   Age: 5 - 10 years   

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I have this Dryer, Kenmore Series 80, There was a thermal switch burned up when I got it, I replaced it and got it to Heat up, Problem is It gets super Hot. And can't figure out why. What else could fix this?

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Old 04-20-2012, 01:10 AM
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A model number would be helpful.
Kenmore numbers are usually 3 digits, a period and then 6 to 8 digits.

Many units have 2 thermal fuses.
One kills power to the entire unit.
One kills power to the heating element.

Which one did you replace?
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Old 04-20-2012, 08:20 AM
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Quote:
Originally Posted by denman View Post
A model number would be helpful.
Kenmore numbers are usually 3 digits, a period and then 6 to 8 digits.

Many units have 2 thermal fuses.
One kills power to the entire unit.
One kills power to the heating element.

Which one did you replace?
answer: The one that attach to the Heater Shell(Case), Two pronged and w/red label. I think it's the Hi-limiter. Could it possibly be the one @ the Exhaust Chamber? I didn't check it because it wasn't burned. or that the wiring is incorrect ? and even thou the switch may cycle, there is continuity of voltage to the Heating element. The model info is gone out of the place where it should be.
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Old 04-20-2012, 08:48 AM
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Here is my standard blurb on replacing the high limit.

Check the heating coil.
Unplug the unit and both wires to the coil.
Check it with a meter, should be around 10 to 12 ohms.
Then check from each side of the coil to the case/frame, both should be infinite ohms (open). If not the coil may have sagged or broken and is touching the case. This can cause it to run on high and the thermostats cannot regulate it so the thermal cut-off blows.

The hi-limit should have regulated the temperature so the fuse did not blow, that is why there is a new one with the thermal cut-off..
Note: That unless there is another problem in the unit the hi-limit should never have to open. It is just a safety device with the fuse being a backup safety device.

Just in case it is not a grounded element.
With all the below the high limit will also have to be replaced.
Check that the belt is OK.
Check the seals (drum etc) in the unit. The air is pulled over the heating coils, through the drum and pushed out the exhaust. So any large seal leak will pull in room air and the cycling thermostat on the blower will run the unit hot.
Check that the lint filter is not coated with fabric softener residue which greatly reduces air flow.
Check/clean your vent system.
Check/clean the blower wheel.

If all OK you may want to replace the cycling thermostat as it's contacts may not be opening (welded shut)
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