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'[TECH] Can someone tell why a Clothes Dryer has a '
2009\07\10@125026 by AGSCalabrese

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I am talking about a basic dryer with no bells and whistles.   You  
push a button to start it and when you open the door it stops.

My dryer has developed a new behaviour ... the motor starts turning  
the drum as soon as I close the door.   I suspect that a centrifugal  
switch on the motor has jammed.   Will something on the motor burn  
out ?  Perhaps a starter coil ?

Best
Gus

2009\07\10@170746 by Bob Blick

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On Fri, 10 Jul 2009 10:50:23 -0600, "AGSCalabrese" <spam_OUTagscalTakeThisOuTspamgmail.com>
said:
> I am talking about a basic dryer with no bells and whistles.   You  
> push a button to start it and when you open the door it stops.
>
> My dryer has developed a new behaviour ... the motor starts turning  
> the drum as soon as I close the door.   I suspect that a centrifugal  
> switch on the motor has jammed.   Will something on the motor burn  
> out ?  Perhaps a starter coil ?

I think if there is a centrifugal switch in the motor it is not the
problem. The motor is disconnected from electricity when the door is
open or the timer is off. You can't just let current flow through either
winding for long periods of time without the motor spinning, it would
consume current all the time and probably overheat. You would know by
now if that were the case.

There must be a "run" relay that has stuck contacts.

On my dryer(Kenmore, electric), if the door is open and I push the start
button, I hear no extra noise(hum, click, etc), even if the timer is on
an "on" position. The only noise I hear is from the timer motor whenever
it is in an "on" position.

So I think you have both the door switch and the timer protecting the
motor.

As your attorney, I'd advise you to keep it away from children, but
otherwise proceed with benign neglect.

Cheerful regards,

Bob

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2009\07\10@172841 by Carl Denk

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Sounds like to me the, the timer  contacts are stuck closed. The timer
contacts AND the door switch are wired in series. Both must be closed
for the motor to run. Depending on the controls, the door switch could
be only an input to the timer assembly, and a relay, or CPU to actually
control the motor. Many times there is a wiring diagram on one of the
removable panels. Or Google for the model number and manual or
schematic, etc. Should be able to find a wiring schematic on line, and
possibly even a repair manual with troubleshooting that will identify
the offending part.

This is a safety issue, and should be corrected! In the mean time
disconnect the power from the unit.

2009\07\10@182142 by AGSCalabrese

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Yes.........
I unplugged the dryer as soon as it started doing this.
Gus

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