Moisture sensor does not seem to work

Probably the Moisture Sensor Bar has failed.

https://www.appliancepartspros.com/search.aspx?model=11085087400%20kenmore%20elite%20he4

https://www.google.com/search?q=kenmore+elite+he4+smartheat+dryer+not+working+on+auto


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Either the dryer moisture sensor is the problem or the gas valve is.

Some dryers have a moisture sensing strip in the drum area of the dryer. If this sensor gets coated with an insulator, like silicon from the backing on carpets, it does not sense moisture. When this happens, the dryer times out and shuts down. This prevents the dryer from running even after the clothes are dry.

Number 34 is the sensor strips located on the rear bulkhead inside the dryer. Clean them thoroughly with Windex or 409. Dryer sheets build a wax buffer on them sensors that moisture cannot penetrate. If no wetness is detected the control shuts her down thinking them clothes is did. Either that or you forgot to reconnect the sensor wire when puttin her back together Kimosabe.

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You are getting moisture in the control panel buttons. After a while the panel will not function at all. The light in the dryer tub will still come on when the door is open. When you unplug your machine and it sets for awhile you are allowing the moisture to dry and the machine can reset. Some people use a hair dryer to dry out the control panel for a temporary fix. Eventually, you will have to get it replaced once it stops resetting for you.

Try to run it in a timed cycle and see if it works longer. It could have a bad moisture sensor and thinks that the clothes are already dry. Prove it out and then replace it.

If your dryer seems to run forever, it could be because of a clogged vent or internal ductwork. Your dryer may have an automatic cycle that turns off the dryer when the clothes are dry. It does this with a special thermostat or moisture-sensing system.

Normally, this is what happens during an automatic cycle:

• The thermostat tells the dryer to heat until the interior of the dryer reaches a pre-set temperature--say 135 degrees.
  
  
• When the dryer reaches the pre-set temperature, the thermostat tells the timer to begin advancing. (If there's a moisture sensor, the timer advances only if the moisture content of the clothing is low enough.)
  
  
• The timer advances until the interior cools, then the thermostat tells the timer to stop advancing, and tells the dryer to start heating again.
  
  

This cycle continues until the clothes are dry. But…if the vent is clogged, the dryer may never reach the proper operating temperature, so it doesn't send the signal to the timer and the dryer continues to run indefinitely, even if the clothes are completely dry. To fix the problem, clean the vent and/or internal ductwork.

you may have a bad switch...

You will have to replace the moisture sensor. The heat from the small fire may have damaged it. It's not that hard to do, but the part costs @$60.

With out a sensor you auto dry will not work (less dry/more dry)

the sensor is just inside the door to the right two metal lines ... take a wet towel and make sure that the sensor is clean...

I would suggest you check the vent that it is clean and clear and open...

also check the #8577274 Thermistor

hope it helps