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Dryer humms when a cycle is selected, with the door closed. Independent of weather or not the start switch is in start position. When door is open humm sound goes away.
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Is door securely shut? Safety switch could be preventing start. Might try unplugging for about 1 min, then plug back in and try. On some models, this will allow circuit to reset. Good luck!
Hello
This code means the dryer door is not closed or the door safety switch is not making a good connection at times. The dryer door safety switch is in the opening of the door and when the door is closed the switch button is depressed. If the control circuit board doesn't get a signal that the dryer door switch is closed it will not allow the dryer to start.. Try firmly closing the dryer door a 2nd time when this happens, if that cures the problem you are good to go, if that doesn't cure the issue you must remove the front panel of the dryer and replace the switch. If you need a switch they are available from Sears Direct for about $15.00 Below is a picture of the switch that most likely used in your model and make, the button on top is what the dryer door depresses when closed..
If it is whirlpool--Make sure it has power. Then:Check the door switch.
A little lever sticking down through top rightof door opening. If it is
not there you will need new doorswitch(sometimes the little lever
breaks off). If it is there and doesnot click when you press it in you
need a new door switch. if it clicks when you close the door
then you have a bad thermal fuse.The thermal fuse is found by taking
the back of the dryer off. The fuse is an oblong white plastic piece
with 2 wires attached.
Door switch part number 3406109 Thermal fuse part number 3392519
HI. This may be an issue concerning the pressure switch that is located inside the rim of the actual door.
This switch activates the main drum motor when a cycle is selected when you are ready to dry your clothes. As soon as you select the desired cycle and you load the clothes and shut the door, the last thing to do is push the start switch. if the door pressure switch is malfunctioning, it will not allow you to start the dryer. it will simply not spin.
If you can visibly see the light inside the drum/basket while the door is closed, this will confirm the malfunctioning pressure switch that is located inside the inner part of the door rim.
Its located in this position so that the actual door can make contact with it, in return, applying pressure to close the switch and complete the circuit. this will cause the dryer to spin.
You stated that you can see the drum light shinning when the door is closed and, this will confirm my diagnosis. You can preform a hard reset just to make sure of this defect. Simply unplug this unit for 5 minutes or, shut down the circuit breaker for 5 minutes as well. Any methods will work. Once the 5 minutes are up, simply plug back in this unit and try to run a normal cycle. if this problem is still and issue, it will once again confirm a door pressure switchfailure and you will need to replace the switch in this unit.
I would check the wire clips and connectors as well located on this switch for lose or worn contacts. this can be a problem spot as well.
If that doesn't do it, (door switch), then check underneath the top and look for the thermal overload switch. Bypass it and see if it runs. If not, then start back at the wiring at the receptacle and then follow to the terminal block located in the back of the dryer. You could be getting power to the receptacle but it may stop there because of a loose wire. You could have lost a leg of power.
On some Kenmore which is made by whirlpool, there is a resistor connected to the timer control. when the machine is off can you listen to the timer switch and hear it running, making a clock ticking sound? If so, you need a new resistor. Being a dryer, when you open the door and it stops the button needs to be reset before it starts again, right? So I wouldnt be looking at the door switch as much as the start button. It may be the evil one.
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