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Whirlpool dryer, WED8300SW1 thermal fuse
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Topic: Whirlpool dryer, WED8300SW1 thermal fuse (Read 10248 times)
boss96
Technician
Member Since: Aug 2012
Posts: 25
Whirlpool dryer, WED8300SW1 thermal fuse
«
on:
March 02, 2013, 04:12:56 PM »
Hi guys, need some input on this one. Went out on a service call for this where the drum is not turning. Thermal fuse was open, replaced it, cleaned out the lint both inside and also the vent. Within 10 minutes it failed again with the complaint that it gets hot to the touch.
Went back and also replaced the thermostat and all the other sensors. At that point it seemed to be running much cooler when I would touch the ex. vent tube. Left the house and next day get the same complaint.
At this point I am thinking of the heating element perhaps shorting to the shield or the motor drawing too much current.
What do you guys think?
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haroldsappliance
Technician
Member Since: Nov 2011
Posts: 848
Country:
No bull no excuses keep it simple
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #1 on:
March 02, 2013, 04:19:04 PM »
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Haroldsappliance.com
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haroldsappliance
Technician
Member Since: Nov 2011
Posts: 848
Country:
No bull no excuses keep it simple
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #2 on:
March 02, 2013, 04:21:12 PM »
http://www.repairclinic.com/PartDetail/Heating-Element-Assembly/8544771/1180054?modelNumber=WED8300SW1
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Haroldsappliance.com
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boss96
Technician
Member Since: Aug 2012
Posts: 25
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #3 on:
March 02, 2013, 04:35:51 PM »
Thanks for the reply.
For curiosity, what is happening, is the element broken and contacting the shield causing a smaller portion of the element to heat up and get too hot?
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haroldsappliance
Technician
Member Since: Nov 2011
Posts: 848
Country:
No bull no excuses keep it simple
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #4 on:
March 02, 2013, 04:45:08 PM »
That's what it sounds like. Remove the wires and check with an ohm meter from each terminal to the housing for continuity.
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Haroldsappliance.com
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JWWebster
Technician
Member Since: Jan 2008
Posts: 8827
Country:
Caregiver, DIYer
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #5 on:
March 02, 2013, 06:45:33 PM »
Did you remove the filter chute? I have had guys buy fuses and come back only to buy more. Problem was the filter chute was clogged like this:
http://appliancejunk.blogspot.com/2011/08/roper-dryer-tune-up.html
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About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair
boss96
Technician
Member Since: Aug 2012
Posts: 25
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #6 on:
March 02, 2013, 07:14:50 PM »
Yes, I did.
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JWWebster
Technician
Member Since: Jan 2008
Posts: 8827
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Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #7 on:
March 02, 2013, 07:18:40 PM »
Ok then you have a bad
control thermistor
IF the heater is not shorted to chassis. Probably fatigued to the point of overshooting desired cotton temp of 160 maximum. I predict that instead of the control stat working the 250 limit on the heater is cycling. This causes excessive heat and wrinkled to hell and back hot clothes. Seen it.
«
Last Edit: March 02, 2013, 07:22:26 PM by JWWebster
»
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May the hinges of our friendship
never grow rusty.
About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair
boss96
Technician
Member Since: Aug 2012
Posts: 25
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #8 on:
March 02, 2013, 07:25:25 PM »
I don't think so as I replaced all the sensors at once on the second trip. This is a 3rd party warranty so I replaced all the sensors.
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JWWebster
Technician
Member Since: Jan 2008
Posts: 8827
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Caregiver, DIYer
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #9 on:
March 02, 2013, 07:43:40 PM »
The only other thang is the Main control then. As the clothes tumble around the control monitors the thermistor and the dryness sensor bars. It is the job of the thermistor to relay back any changes in resistance to the control and that is how it knows to power up the heater. Did ya try yanking out the connections to the brain and cleaning the corrosion of the contacts?
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May the hinges of our friendship
never grow rusty.
About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair
AJ
Technician
Administrator
Member Since: Jun 2007
Posts: 10983
Country:
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #10 on:
March 02, 2013, 08:10:01 PM »
JW, you don't think it's simply a faulty heating element as Harold suggested?
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JWWebster
Technician
Member Since: Jan 2008
Posts: 8827
Country:
Caregiver, DIYer
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #11 on:
March 03, 2013, 08:38:55 AM »
I would check the element for shorts first thing. The last thing I always do when I put any appliance back together is check for continuity between either hot leg on the power cord to frame.
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May the hinges of our friendship
never grow rusty.
About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair
AJ
Technician
Administrator
Member Since: Jun 2007
Posts: 10983
Country:
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #12 on:
March 05, 2013, 10:57:43 PM »
What did you end up finding wrong?
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boss96
Technician
Member Since: Aug 2012
Posts: 25
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #13 on:
March 17, 2013, 12:14:57 AM »
Sorry it took so long, this is a 3rd party warranty and they take awhile to send parts (they won't let us supply them ourselves).
I went back out with the new thermal fuse and a heating element. Don't forget I had previously replaced the thermostat and various thermistors/sensors already.
The unit ran for just under 10 minutes and blew the fuse again. Since this the the third try the warranty company will be doing a buyout.
I wish I had been able to get to the bottom of this problem but since it is not cost effective for us anymore...
I still wonder if perhaps we installed a bad thermostat or something...
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RegUS_PatOff
Technician
Member Since: Dec 2007
Posts: 1410
Country:
Re: Whirlpool dryer, WED8300SW1 thermal fuse
«
Reply #14 on:
March 17, 2013, 04:55:14 AM »
did you test to see if the Heating Element was partially shorted to the chassis / ground ?
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