Question about LG DLE7177 Dryer

4 Answers

LG DLE7177 - Doesn't heat

This happened once before (when under warranty), where a build up of lint caused the thermal overload switch to trip. They came out and reset it. It has now happened again (not under warranty) and I'm competent enough to do it myself (if I know where to look). I have taken the top off and the front display panel, but don't see where the switch is on the unit. Where is the reset for the thermal overload switch?

Posted by on

4 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 2,712 Answers

For an electric dryer that runs but doesn’t heat, follow this repair roadmap:

  1. Flip the circuit breaker off and then back on. Electric dryers run on a two-pole, 240v breaker. A common problem is for one of the legs to break which cuts the 240v that the elements need to heat up but it still supplies the 120v for the motor. The result is that the dryer runs but doesn’t heat.
  2. If the breaker checks out, then it’s time to do some surgery. Unplug the dryer and open it up.
  3. Use your ohm meter to test the thermostats. All should show continuity.
  4. Measure the resistance of the heating element with your ohm meter. Normal readings are in the neighborhood of 30 ohms.
  5. In rare cases, the centrifugal switch in the motor can fail which breaks the power circuit for the heating elements. If this is the case, then the entire motor must be replaced since the centrifugal switch is built into the motor.
It looks like the root cause of the thermal fuse blowing is an improper vent. The idea with a dryer vent is to have as little back pressure as possible. Back pressure retards the flow of moist air out of the dryer and also collects lint in the dryer and vent system creating a fire hazard.
Whenever either the thermal fuse or the thermostat is found to be bad, both parts should be replaced at the same time, or else the same issue recurs. The number one thing you should do to make your dryer safer to operate and dry clothes more efficiently is to follow the do’s and don’ts in this chart. In addition to the basic do’s and don’ts above, you shall obey these dryer vent length criteria. It is recommended to use either rigid aluminum or steel duct or spiral-wound aluminum flex hose–NOT the white vinyl hose.

Posted on May 02, 2008

  • Swilin Sampson
    Swilin Sampson May 02, 2008

    This image will give you a general idea, in case you want to replace the thermal fuse:





    Hope that helps! Should you have any further questions,
    please feel free to post them here.





    P.S. - If you find that the solution/answer
    I provided led you to, or resulted in a fix, please close the ticket with a FixYa!
    rating.
    I would be very grateful for your show of appreciation.


    If it hasn’t, please do not assign a rating just
    yet. Please post back as to what steps you took, results, etc, and I will try
    to assist you further as best I can. I am here at your service.






    Thank you for using FIXYA!





    Cheers!


    IrishDruid



  • Swilin Sampson
    Swilin Sampson May 07, 2008

    Hi,




    Just wanted to inquire if your issue is resolved, or if there is anything
    further I can do to assist you…





    If your issue is not resolved, please do not assign
    a rating just yet. Please post back as to what steps you took, results, etc,
    and I will try to assist you further as best I can. I am here at your service.






    P.S. -You can rate this solution with one of
    four votes, if you feel your issue is resolved (remember that at times a bit of
    to and fro dialogue may be necessary to resolve an issue).






    • "FixYa!"
      - The solution provides great advice on how to solve the problem.

    • "Helpful"
      - The solution provides useful leads that helps solve the problem.

    • "Thanks
      for Trying
      " - The solution does not solve the problem but the
      effort is appreciated.

    • "Inappropriate"
      - The solution has absolutely nothing to do with the problem.


    Thank you for using FIXYA!





    IrishDruid

×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 126 Answers

IF THE FUSE IS BLOWN OR THE CIRCUIT BREAKER TRIP, THE DRYER MIGHT TUMBLE BUT NOT HEAT. CHECK YOUR HOME'S OR LAUNDRY ROOM'S FUSE BOX/CURCUIT BREAKER BOX AND REPLACE THE FUSE OR RESET THE CURCUIT BREAKER.

Posted on May 02, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,447 Answers

Go to this link this might give you info THERMAL

Posted on May 02, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 3,037 Answers

If you scroll over the top right picture on the following link you can find the thermal switch that you speak of. Please let me know if you have any further questions, thanks

http://www.repairclinic.com/0100_15.asp

Posted on May 02, 2008

  • Benjamin Patri
    Benjamin Patri May 06, 2008

    Please don't forget to rate this solution as that is one of the biggest
    aspects of how this website works and in order to receive any credit in
    helping you, I need to be rated.






    Otherwise, let me know if you have further questions and I would be glad to help.







    Thank you

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

What is the most common reason for my lg dryer stop heating


The thermal overload sensor got tripped. Usually by a small lint fire inside the heater unit. not uncommon to have this happen without your knowledge and without causing a major fire. cheap fix to do yourself but you have to take the a lot of the dryer apart to get to it. Been there done that.

Jan 02, 2016 | LG Dryers

1 Answer

LG TROMM DLE 3733W dryer Sometimes it won't heat and try the clothes and sometimes it will. I hear the high temp switch kick off when it doesn't work.


You might have excessive lint build up in the air flow inlet. Then excessive heat trips the thermostat limit switch. The thermostat limit switch could be defective too.

Oct 19, 2015 | Dryers

1 Answer

Dryer was working when I left, came home clothes were dry, but now will not restart. Pushing start button does nothing. Light is on in tub when I open door.


this sure has all the suspicions that it's the thermal safety switch , (1) it worked on last load
(2) nothing happens when start is pushed
( 3) tub light works ok

both gas and electric models have one , and they both do go bad , the switch is mounted usually at top of air outlet tunnel on back of dryer , some do have reset buttons , but rarely do they trip for false reasons , something musta happened to cause a high heat build up in dryer ,Lint build-up is most common reason I can think of

May 18, 2015 | Dryers

1 Answer

Thermal fuse blown....likely causes????


The thermal fuse trips out when it builds up too much heat. That is caused by the vent being restricted. Clean out the vent the lent trap and any lint build up in the machine. Hopefully this will fix you problem.

Feb 04, 2012 | Dryers

2 Answers

Electric dryer, runs for about 20 min then shuts down, can restart after a period of time, then runs about 20 min and shuts down


you have a bad motor,most likely you don't clean out the dryer,this is the number 1 killer of dryers.the vent line,the duct that the lint filter slides into and the cabinet where the motor is needs to be cleaned out if it's gas once a year,electric once every two years.all a dryer does is move air,when lint starts to build up the dryer starts to run hotter then normal from the lint build up and the dryer can't move the air as easy as when everything is cleaned out and then parts start to brake like the thermal fuse will pop from running to hot or the motor starts to over heat like yours and shuts down.when the motor gets hot the oil that's inside it leaks out,you'll see it stuck to the side wall and on the rear end of the drum with lint stuck to it.there's an overload in the motor that pops when the motor gets hot and after a while when it cools down the overload resets,that's why you can start it again after a while so basicly you have to replace the motor and clean out the dryer,if the vent line is a long run,remove it from the back of the dryer and with a leaf blower blow it out,you'll see all kinds of stuff blow out through the outside duct and clean out the duct that the lint filter goes into and the cabinet where the motor is or replace the dryer.

Apr 08, 2011 | Kenmore 62602 Electric Dryer

1 Answer

Wont heat


Hi


Thanks for using FixYa. No Heat issue in dryer is usually caused due to three things mainly: Thermal Fuse, Wiring Harness and/or Heating Element. Start with checking the Thermal Fuse which ismounted inside the back cover panel to the exhaust duct and is mounted in white plastic housing. If thats fine then the Heating Element should be checked. Please do revert for further assistance.


Thanks
Rylee

Apr 06, 2010 | LG DLE7177 Dryer

2 Answers

My Fisher Paykel dryer runs normally but does not have heat to dry the clothes


the coments above are typical but not for this brand of dryer. I am not a Service technician but Very Handy. You can access the service summary (or Diagnostic Mode) by:
1)Turn on power to unit
2)Press & hold down the Auto Dry button, while you momentarily press the Power button.
3)Press the Auto Dry UP button 3 times to read the "Last Fault Option". Different combinations of LEDs has a specific value(refer to the WIRING DIAGRAM located under the control panel)
***The entire dryer can be disassembled with only 6 Philips head screws. In my situation, I had the same issue listed above (No Heat). Start by making sure your ductwork exhaust has no blockage or kinks. Take a Shopvac and vacume every bit of lint up inside and out of the Dryer.
Turns out that my problem was nothing but a Manual Reset button located by the Heater Coil Box (Located lower front and right)
***This is an overload arrestor that tripped due to a build up of Lint!
The button clicks when it has been reset, then it works fine. Once again, make sure your Dryer is spotless before you close it up, (unless this is a part of your routine maintenance, haha).

Nov 22, 2009 | Fisher and Paykel DEGX1 Electric Dryer

1 Answer

My LG TROMM DLE7177 on heating cycle finish much quicker


First off, unless you are using the manual dry (timed dry) option, the times listed are strickly an estimate. At the begining of a cycle, the dryer has no idea how big a load you have, how wet it is, and how good your vent is. In your situation, I would clean off the two silver colored moisture sensor bars, located just inside the drum, by the right side of the lint filter area. They are curved, about 5 inches long, and about an inch apart. If you use fabric softener sheets, they can aquire a waxy build up, which inhibits them from detecting that the clothes are still too wet.

Aug 27, 2009 | LG DLE7177 Dryer

1 Answer

Dryer keeps shutting off after few minutes.


It sounds like to me that the timer may be bad. Does your breaker trip when this happens? If it does, then it is probably not the timer. The motor turning the drum might be going bad. It could be building up resistance then cutting it off on overload(current). Try to bypass the thermal overload switch which is located under the top. This may very well be your problem. Let me know how this does.

Jan 28, 2009 | Frigidaire GLEQ642A Electric Dryer

3 Answers

Runs but no heat


i have replaced TH2 in my dle0322 about 6 times now. It never lasts more than a month. What could be causing this?

Apr 21, 2008 | LG DLE2532W Electric Dryer

Not finding what you are looking for?
LG DLE7177 Dryer Logo

312 people viewed this question

Ask a Question

Usually answered in minutes!

Top LG Dryers Experts

Tim Whalen

Level 3 Expert

3056 Answers

Dan Webster
Dan Webster

Level 3 Expert

8147 Answers

Richard Roth
Richard Roth

Level 3 Expert

9472 Answers

Are you a LG Dryer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...