Kenmore dryer DW4305295 - dry cycle will not stop,

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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most likely the board is bad,the board is big money,just keep using it on auto,that's what you should be using anyway the dryer automatically stops when the clothes are dry,say you set your clothes for 60 minutes and they dry in 40,you're drying the clothes 20 more minutes that you didn't need,if you set it on auto the dryer sensor knows the clothes are dry and shuts it down when they are dry,this doesn't have a timer this has a computer board or it could be the touch pad not working correctly if it doesn't take commands but either part is expensive the board is like 200 and the touch pad is close to 300 bucks,i would use it on auto,one more thing to check is sometimes the ribbon or plug that connects the touch pad to the board could be loose or have some lint or something in it,i've just unplugged them and plugged them back in and then it works,also clean out all the lint out of the dryer and vent line,this is the number one cause of most problems in dryers and you won't have to worry about a dryer fire,if it's gas you should do this once a year yours is electric so you can wait like every 18 months with gas you have a flame in there so you don't want lint in or around the flame,clean out the duct that the lint filter slides down into and i use a leaf blower to blow out the vent line just take it off the dryer stick the leaf blower int the line and blow it to the outside when you have the dryer running go back outside and make sure the air is blowing out good

if when you open the door and the dryer keeps running you have a broken door switch part 3406105 go here and look at part number 41
http://www.searspartsdirect.com/partsdirect/part-model/Kenmore-Parts/Dryer-Parts/Model-11076712691/0582/0151200/10051141/00002?blt=06&prst=0&shdMod=11076712691
open the door,look at the right top,there should be a paddle there that if you push in on it you should hear a clicking sound,if not switch is bad.now if you mean that it won't stop when it goes to off then you could have a bad timer part number 3976577 and it's around 100 dollars
http://www.searspartsdirect.com/partsdirect/part-model/Kenmore-Parts/Dryer-Parts/Model-
11076712691/0582/0151200/10051141/00001?blt=06&prst=0&shdMod=11076712691
go here and it's part 3 on diagram,try it on timed dry and auto cycle and see if it stops on either cycles

you can't get any parts for this dryer the computer board is no longer available,must be old technology replace it.

Replace the timer if it continues through and past a timed cycle.

either a timer or the heating element or a blocked vent also there is a resister on some kenmore/whirlpool dryers and if it is out it wont advance in the auto cycles. It should advance in the timed cycle with or without heat

Chances are your igniter has gone bad. It must pull atleast 3.2 amps to open the gas valve and ignite the gas. A new igniter could probably purchased for 20 or 30 dollars.

in auto dry the timer motor receives voltage to advance by way of the cycling thermostat.[each time the thermostat opens to stop the heat the switch in the thermo then changes that voltage up to the timer and it will advance timer motor until it closes again for heat and this continues till clothes are dry]so as long as timer is receiving that voltage and not advancing then i agree its the timer.other wise it could be a failing/intermident cycling thermostat.a thought.in timed dry the timer motor receives constant voltage.so if never stalls in timed dry it may be a clue that the timer is ok. i hope this helps you understand whats going on. God bless ,tom

Clean the vent hose and vent outlet

On auto dry cycles, the cycle is controlled by moisture sensing bars located on either the rear or front bulkhead, ( visible inside dryer ) if the moisture sensor bars are shorted together (normally by wet clothing) the dryer will continue to run. If the dryer continues to run when the clothes are plenty dry, check and see if there is anything stuck between the sensor bars, (sometimes a metal sequin will cause this) or see if they are damaged. If not, you may have a problem with a timer contact, if the timer advances and stops moving at the same spot each time, I would suspect the timer. If this is an EvenHeat dryer, examine the control board located to the right of the timer in the control panel, for any burned components. Hope this helps.