Author Topic: LG Dryer wont heat- replaced the heating element and the thermostats  (Read 12580 times)

Offline cotterm

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UGGGG.  I am frustrated.  The dryer stopped heating last week.  I ordered a new heating element and thermostats. I installed them and the dryer worked great....for three loads, then stopped heating again.  The new heating element had the thermostats already attached.  I did a thorough cleaning of the entire machine.  Any help would be appreciated.  Thanks in advance.  

Model DLE3777W

Offline JWWebster

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Have you cleaned the moisture sensors so that the control can get a jest of the dryness of them clothes? As them wet clothes rub against them sensors a capacitor gets discharged and the program keep a goin. When no moisture is sensed then them machine thank all is propah and proceed to shut down .
 Clean them sensors
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Offline cotterm

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If it were the sensors, wouldn't it just shut the dryer off though?  The dryer continues to run, without heat.

Offline wildimaginations

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UGGGG.  I am frustrated.  The dryer stopped heating last week.  I ordered a new heating element and thermostats. I installed them and the dryer worked great....for three loads, then stopped heating again.  The new heating element had the thermostats already attached.  I did a thorough cleaning of the entire machine.  Any help would be appreciated.  Thanks in advance.  

Model DLE3777W

You may have a problem with a restricted exhaust vent in the house.  Does it take a long time to dry your clothes??  If so, you should have your exhaust vent in the wall cleaned out.  It's possible that the restricted vent may have blown the high limit switch shutting down the heater element.  You can just change the high limit switch and it should work fine.

Also check your circuit breaker to make sure that it didn't trip.  Usually it's a double 30amp breaker.

Good luck.
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Authorized servicer on LG appliances.
About 45 mins east of San Francisco

Offline cotterm

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I don't see a high limit switch in the service manual.  I do see a switch though (k640) in service manual diagram and PART NUMBER: 3W40025D.  It's about a $5 part.  Is that it?

Offline wildimaginations

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I don't see a high limit switch in the service manual.  I do see a switch though (k640) in service manual diagram and PART NUMBER: 3W40025D.  It's about a $5 part.  Is that it?

No, the high limit switch is F130.  The part number is 6931EL3003D.  It's right up against the heating element.  Before you replace it, make sure that it's broken.  Use your ohm meter to measure it.  If it's open, replace it.  
Appliance Service Technician
Authorized servicer on LG appliances.
About 45 mins east of San Francisco

Offline cotterm

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That switch is a thermostat (s listed in repair manual), and was replaced as well.  
I replaced the following:   

6931EL3001E THERMOSTAT

6931EL3003D THERMOSTAT

5301EL1001A HEATER



Offline JWWebster

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I don't see a high limit switch in the service manual.  I do see a switch though (k640) in service manual diagram and PART NUMBER: 3W40025D.  It's about a $5 part.  Is that it?

No, the high limit switch is F130.  The part number is 6931EL3003D.  It's right up against the heating element.  Before you replace it, make sure that it's broken.  Use your ohm meter to measure it.  If it's open, replace it.  
F130? That ain't no limit that is a fan switch. I guess you mean L-130 which is a control thermostat for perma press not a limit. Limits are 250 and 300 degrees and mount directly on the heater; they do not control the heat only trip if the dryer gets too hot.

Did you mount the 6931EL3001E on the heater chamber? If ya did then the dryer would not function properly. It should be mounted on the blower housing. It judges the air coming from the drum and going out of the machine and is a control thermostat. Them other thangs are safetys
« Last Edit: August 07, 2011, 03:42:22 PM by JWWebster »
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 and other general BS I love to post. The letter sends me email.
I love fan letters! LOL

Offline cotterm

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the heater had the thermostats attached when they arrived. 

Offline AJ

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Did you get it fixed then? I was not sure if the parts you listed fixed it or are you still looking for help?
Hope you find our website helpful.

 

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