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Forum Index => Dryer Repair => Topic started by: MBryga on August 19, 2009, 01:52:10 AM

Title: LG Tromm Gas Dryer won't Heat
Post by: MBryga on August 19, 2009, 01:52:10 AM
I've got a LG DLG0332W dryer that won't heat on any setting, but otherwise seams to be running (lots of air-flow). It came with the house when we bought it 15 months ago (so it's out of any manufacturers and new home warranty).

When first powered up, the 'check filter' LED was flashing and the filter was very dirty. We've cleaned the filter with a specifically designed brush and vacuumed what we could, but the LED continues to flash on power-up. before we cleaned it.
When running the LEDs for 'drying' are all flashing in unison (I don't know what they used to do).

I ran the diagnostics as per page 16 of the manual. I found I could wipe the moisture sensors and then run through the tests and I think it verified the moisture sensor is working.
After pushing the start/pause button I get the following;
0) no error codes
1) 237 down to 120
2) 24
3) 23
Door Open) dE
This all seams normal as far as I can tell.

I have not been brave enough to start disassembling the unit to get to the gas valve or thermoswitches to test them.

Your advice please.
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: whirlpooltech on October 02, 2009, 09:37:26 AM
Do you still need help with this or did you get it repaired?

I'm no LG expert, but on any other brand of gas dryer that runs but does not heat I would take a look at the ignitor first, part # 5318EL3001A
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: MBryga on October 02, 2009, 10:23:38 AM
We ended up getting an LG recommended technician out. I decided the almost total tear apart to get to the thermostats/switches was just too much effort and that it would be disassemble too long while I waited for parts to arrive. The first technician I phoned refused to work on LG Tromm's because of some 'scary' design issues and stressed the importance of getting someone who was factory certified. This sent me back to LG customer support where I got the second guy who was great. Had it totally torn apart in about 45 mins, replaced the thermostats/switches, and back together again in another 45 mins. Total cost was $180.
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: whirlpooltech on October 02, 2009, 11:21:28 AM
Thanks for the update.

Would you happen to have the part number of the parts he used to repair it?

Title: Re: LG Tromm Gas Dryer won't Heat
Post by: pokerpalace on October 17, 2009, 10:42:06 PM
I've got a dryer that won't heat on any setting, but otherwise seams to be running (lots of air-flow). It came with the house when we bought it 15 months ago (so it's out of any manufacturers and new home warranty).

When first powered up, the 'check filter' LED was flashing and the filter was very dirty. We've cleaned the filter with a specifically designed brush and vacuumed what we could, but the LED continues to flash on power-up. before we cleaned it.
When running the LEDs for 'drying' are all flashing in unison (I don't know what they used to do).

I ran the diagnostics as per page 16 of the manual. I found I could wipe the moisture sensors and then run through the tests and I think it verified the moisture sensor is working.
After pushing the start/pause button I get the following;
0) no error codes
1) 237 down to 120
2) 24
3) 23
Door Open) dE
This all seams normal as far as I can tell.

I have not been brave enough to start disassembling the unit to get to the gas valve or thermoswitches to test them.

Your advice please.

I've got the same dryer and had the exact same issue. It turned out to be a problem with the thermostat. I took apart the dryer, pushed a button and I've got heat again.

Here's step by step instructions I found on repairclinic.com (http://repairclinic.com)

I had the same problem yesterday. Service technician says that it is one of three things that could be wrong (other online help sites seem to confirm this):

1) Thermostat has a circuit breaker that has tripped or the Thermostat is defective.
2) Thermister or Thermal Fuse had blown.
3) Thermostat/Gas Valve assembly is defective.

I am told that all of these parts can wear out more frequently if your dryer filter, vent, and vent piping are not kept VERY clean on a regular basis.

You can test the first problem on your own if you have a phillips screw driver and a common putty knife. Here's how:

First, UNPLUG THE ELECTRICITY!!

There are two clips that hold the top to the front. Slide a putty knife into the seam between top and front about two inches from the corners, push the clips backwards and pop the top up.

Next, remove two screws on top of the front. Then open the dryer door and remove the two screws on the front, just below the opening. (BE CAREFULL!! THE DOOR IS GLASS AND THE FRONT WILL FALL IF NOT SUPPORTED!!)

The reset switch in built onto the thermostat. The thermostat is located in the bottom right hand front corner of the dryer. It is behind another component, so it is not easily seen. You may want to use a small mirror to see it. Or just gently feel around for a small round pushbutton.

Once you have reset the switch, close the unit by reversing the steps above.

Test the dryer to see if it heats. If it fails again, then you have a defective part that will need replaced, part # 6931EL3003F
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: Al Capone on October 18, 2009, 10:44:29 AM
pokerpalace,

Thanks for taking the time to register and post your info.  O0
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: CAPTFOOTLONG on October 24, 2009, 07:28:07 AM
iF THE PEOPLE ARE USING FABRIC SOFTENER IT WILL MAKE THE SENSOR TRIP :D  HAPPENED AT MY OWN HOUSE
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: the_bigham on January 26, 2013, 02:36:50 PM
This thread seems to be the most recent (despite its age) for heating issue on a DLG0332W.

I think this may be the part and help others find it. This is from my unit moments ago:
http://i50.tinypic.com/1z4ansx.jpg (http://i50.tinypic.com/1z4ansx.jpg)

Does not feel much like a button... but maybe that is because is it bad. I also removed the igniter so I can test it, which can be removed without taking the drum out (with patience)
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: AJ on January 26, 2013, 04:34:00 PM
Hi,

Thanks for the images.

What kind of heating issues are you having with your dryer?

Let us know what you found or if you have any questions.

thanks,
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: the_bigham on January 29, 2013, 07:22:14 PM
Howdy,

My issue is pretty much the same as this thread - no heat and "check filter" on my DLG0332W.

I just replaced M230 - THERMOSTAT ASSEMBLY - 6931EL3003C (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003C/1268365) and still get "check filter" when I power on the dryer. It is in the garage for space to work on it (not connected to gas).

I did NOT replace M220 - THERMOSTAT ASSEMBLY - 6931EL3003F (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245), even though I ordered it, because it does not match what is in the unit. The replacement I ordered has a red button and the screw holes do not match what is in the unit. See picture.


Hi,

Thanks for the images.

What kind of heating issues are you having with your dryer?

Let us know what you found or if you have any questions.

thanks,
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: the_bigham on January 29, 2013, 08:03:26 PM
P.S.

Does the "check filter" always light up when you first start it? You'd think I would know that after all these years :-|

About to drag this thing back into the house to see 6931EL3003C (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003C/1268365) did the trick...
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: bigbuck on January 29, 2013, 08:07:46 PM



"Does the "check filter" always light up when you first start it? You'd think I would know that after all these years ".                                                                   

Yes
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: john63 on January 29, 2013, 11:47:40 PM
Looking at the front of the dryer at ground level---the HI-LIMIT THERMOSTAT (6931EL3003F (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245)) is located at the one O'clock position on the burner tube.

The HI-LIMIT THERMOSTAT shuts down the gas burner if the temperature in the burner tube has reached 203F.
The HI-LIMIT THERMOSTAT is self-resetting and does NOT have a reset button (automatically resets when the temperature lowers to 158F).

The THERMAL LIMITER (6931EL3003C (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003C/1268365)) is located at the seven to eight o'Clock position on the burner tube.

The THERMAL LIMITER shuts down the gas burner if the HI-LIMIT THERMOSTAT fails to do so---at 230F.

To reset the THERMAL LIMITER---press the small (red or black) button until a "click" sound is felt/heard.

LG published a Service Bulletin in 2006---recommending that the HI-LIMIT THERMOSTAT be replaced if the THERMAL LIMITER has "tripped".

*******************************************

<<<Does the "check filter" always light up when you first start it?>>>

*******************************************

The CHECK FILTER indicator light is a *reminder* to clean the lint filter before starting another load in the dryer.

When the dryer is powered on (turned on)---this light flashes to get your attention---and reminds the user to verify that the lint filter has been cleaned---and is in no way triggered by any type of sensor mounted in the lint filter housing.

When the dryer is started (running)---this indicator lamp should turn off.

***************************************

<<<I did NOT replace M220 - THERMOSTAT ASSEMBLY - 6931EL3003F (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245), even though I ordered it, because it does not match what is in the unit. The replacement I ordered has a red button and the screw holes do not match what is in the unit.>>>

***************************************

Incorrect part.

M220 is the HI-LIMIT THERMOSTAT (6931EL3003F (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245)) and *does not* have a reset button.




Title: Re: LG Tromm Gas Dryer won't Heat
Post by: the_bigham on January 30, 2013, 07:01:27 AM
Every site shows the wrong image for 6931EL3003F (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245) when I Google it (has button/etc) . Not sure where to order the right part at this stage. Example image from the forum sponser:
http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245 (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245)

After hooking up the dryer last night, less the ducting (so I could feel the heat), I had heat briefly. I heard the gas fire up (whoompf) and was getting warm air for a couple minutes or so out the rear vent. Then the heat stopped, and I have not been able to get heat again.

That tells my my igniter is good, which also looked good on the multimeter I borrowed. Perhaps those few minutes of heat was not long enough to trip the high limit and I am looking at a 6501EL9001A (http://www.repairclinic.com/PartDetail/Humidity-Sensor/6501EL9001A/1352736) issue and/or the high-limit?

I have not run the "diagnostic test" yet - my likely next step (if it is valuable/informative for my symptoms).

P.S.

Is the LG published a Service Bulletin from 2006 a web facing document?

I have the 6931EL3003C (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003C/1268365) I removed on my desk. I cannot get the button to click no matter the pressure I apply - do they break or does it have to be tripped by heat internally to click? Doubting this was broken at this stage....
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: the_bigham on January 30, 2013, 07:18:36 AM
Suspecting 6931EL3004B (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3004B/1268367) is the HI-LIMIT THERMOSTAT I need, despite what the LG service manual says.
http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3004B/1268367 (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3004B/1268367)
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: domain on January 30, 2013, 05:20:29 PM
Suspecting 6931EL3004B (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3004B/1268367) is the HI-LIMIT THERMOSTAT I need, despite what the LG service manual says.
http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3004B/1268367 (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3004B/1268367)

First 3 digits of your serial number? :D
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: domain on January 30, 2013, 05:31:17 PM
Service bulletin from august 6th 2004, states that the thermostat has been changed from part#6931EL3004B ( http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3004B/1268367 ) to part#6931EL3003F which comes with reset able red button as seen here (  http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245 ) This states it applies to 2002 production models. It also states that it was changed to improve performance, productivity, and reliability.  :D
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: the_bigham on January 30, 2013, 05:34:33 PM
I think this is the whole serial - it is stamped on the top/rear and not behind the door as the manual implies.

The 6931EL3003F (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245) screw holes do not align on my unit - I would only be able to affix with one screw (which may or may not be OK).
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: domain on January 30, 2013, 05:40:06 PM
Looks like a 2002 model to me, (OLDER models also have the model/serial plate located on the upper left of the RIGHT side of the unit. This has been changed to behind door are since 2005 if I believe.) which means that previous post SHOULD apply! New burner tube may need to be ordered to be able to properly mount the updated thermostat to OE specs.(Not Drilling Hole in Tube) :D
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: the_bigham on January 30, 2013, 07:03:54 PM
Found the serial after pulling the unit out - first three digits are 305.

I also decided to get cute on my screw/hole issue... installed OK, but no luck. On test 3 of the diagnostic, it petered out at low 30 something degrees. It did the same thing with the old hi-limit installed too. Never makes it as far as the manual implies it should: "In normal state if displayed temp. is increasing. Temperature in 4min : 113F (45C)"

Cannot get it to heat now. Reached in there to push those buttons, which are impossible to tell if they actually click or even need clicking.

At this stage I now have a new M220 (6931EL3003F (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245)) and M230 (6931EL3003C (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003C/1268365)) installed and a M220 (6931EL3004B (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3004B/1268367)) on the way.

Tempted to give up, even though I had success fixing the washer a couple years back!  :(
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: domain on January 30, 2013, 07:09:48 PM
I will await for WildImagination and John63 to offer their insight. Awesome techs right there. :D
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: niobrara on January 30, 2013, 09:17:06 PM
 :popcorn:
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: domain on January 30, 2013, 09:25:45 PM
:popcorn:
? :D
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: john63 on January 31, 2013, 12:22:54 AM
<<<Every site shows the wrong image for 6931EL3003F (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245)>>>

*******

Correct.

And if ordered/received---and has a *button*---it is also the *wrong* part.

This part is the HI LIMIT THERMOSTAT and is located at the 1 O'clock position on the gas burner assy.
It is also listed as M220 on the parts illustration.

Absolutely NO BUTTON should be on the HI LIMIT THERMOSTAT.

**********

<<<Not sure where to order the right part at this stage.>>>

**********

Try Marcone Appliance Parts

**********

<<<I have the 6931EL3003C  (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003C/1268365)I removed on my desk. I cannot get the button to click no matter the pressure I apply - do they break or does it have to be tripped by heat internally to click?>>>

**********

The THERMAL LIMITER will only "click" if it is *tripped*.
Using a test meter---the THERMAL LIMITER can be tested for "continuity".
If closed---good.
Of open (and will not "click" either---failed/bad).
I've never had one fail to reset.

**********

<<<Doubting this was broken at this stage....>>>

**********

Yes---based on your additional posts---it's clear that the gas burner is only functioning initially but not continually (intermittent).

This usually caused by the following (in most likely order):

1) Failing MAIN BOARD (6871EC1016C (http://www.repairclinic.com/Shop-For-Parts?s=t-6871EC1016C-%3d%3d)) The gas valve *relay* fails after one or two burner cycles.

2) Failing GAS VALVE ASSY (5221EL2002A (http://www.repairclinic.com/PartDetail/Gas-Valve-Assembly/5221EL2002A/1266848)) Valve 1 or Valve 2 fails after one or two burner cycles.

3) FLAME SENSOR (6501EL3001A (http://www.repairclinic.com/PartDetail/Flame-Sensor/6501EL3001A/1268234)) Erratic operation.

4) CENTRIFUGAL SWITCH on the MOTOR (4681EL1008A (http://www.repairclinic.com/PartDetail/Drive-Motor/4681EL1008A/1330330)) Erratic operation.

The most common culprit on an LG gas dryer built 10 years ago---would be the relay on the Main Board.

To test---start dryer and run until burner flame no longer re-ignites (such as you've already discovered earlier).

Unplug the dryer.

Remove the front of the dryer but leave the door switch plug connected.

Set the front of the dryer off to the left (or have an assistant hold it)

Lower the top cover of the dryer.

Set the test meter to DC voltage test mode (direct current).

Pull off the plug to VALVE #1 (on the right side of the gas valve).

Place the test leads into the plug.

Plug in dryer.

Power on dryer.

Select the *Normal* cycle and press the START button.

There should be 90 volts DC at the plug.

If no voltage or less than 90 volts DC is present/shown on the meter---replace the MAIN BOARD.

NOTE: In the Service Manual---there's a *typo*.
           The Service Manual for the DLG0332W dryer shows/instructs the servicer to check for 120 volts AC
            at the gas valve assy plug(s).
            Disregard.

Try this step first (several times if needed) to test the reliability of the relay on the Main Board.

If the MAIN BOARD (relay) tests good/okay---we'll move on to the next most likely component---the GAS VALVE ASSY.
         

Title: Re: LG Tromm Gas Dryer won't Heat
Post by: john63 on January 31, 2013, 12:31:44 AM
<<<At this stage I now have a new M220 (6931EL3003F (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245)) and M230 (6931EL3003C (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003C/1268365)) installed and a M220 (6931EL3004B (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3004B/1268367)) on the way.>>>

************

The original HI LIMIT THERMOSTAT (M220 location) was: 6931EL3004B (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3004B/1268367)
It has been replaced by: 6931EL3003F (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3003F/1365245)

The 6931EL3004B (http://www.repairclinic.com/PartDetail/High-Limit-Thermostat/6931EL3004B/1268367) should *not* be used.

It's not uncommon for parts jobbers/retailers to continue selling older/obsolete replacement parts.
Not deliberately though---they're simply unaware that a new/improved part has superceded the original.
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: niobrara on January 31, 2013, 06:40:37 AM
 :popcorn: ? , enjoy reading how John breaks issues down.Thank you.
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: the_bigham on February 03, 2013, 01:33:03 PM
Thar she blows - note how it drops after a a little bit of time. At the end I show where I plugged in the meter:

http://youtu.be/0kPqo2tKBbE

Seems like the same type of thing I swapped on the washer a couple years back or so...

Manual says 6871EC1061B (http://www.repairclinic.com/PartDetail/Main-Control-Board/6871EC1061B/1359805), so I assume 6871EC1061C (http://www.repairclinic.com/PartDetail/Main-Control-Board/6871EC1061C/1359806) [not 1016C - assumed type  :) ]  is the improved version for DLG0332W?
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: john63 on February 03, 2013, 09:54:11 PM
<<<Manual says 6871EC1061B (http://www.repairclinic.com/PartDetail/Main-Control-Board/6871EC1061B/1359805), so I assume 6871EC1061C (http://www.repairclinic.com/PartDetail/Main-Control-Board/6871EC1061C/1359806)>>>

*****************

Good catch :)

The part number that I posted earlier (6871EC1016C (http://www.repairclinic.com/Shop-For-Parts?s=t-6871EC1016C-%3d%3d)) is **incorrect**.

Correct part number is: 6871EC1061C (http://www.repairclinic.com/PartDetail/Main-Control-Board/6871EC1061C/1359806)
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: lesguns on February 03, 2013, 10:42:41 PM
what is your line voltage?
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: john63 on February 03, 2013, 11:11:25 PM
Hmmm.

6871EC1061C (http://www.repairclinic.com/PartDetail/Main-Control-Board/6871EC1061C/1359806) has been discontinued.

May need to send your board to fixyourboard.com (http://fixyourboard.com) (rebuild)

ADDL NOTE...

The 6871EC1061B (http://www.repairclinic.com/PartDetail/Main-Control-Board/6871EC1061B/1359805) Main Board is for an LG *washer* model: WM2077CW
 
That *could* be a typo on LGs website though (not entirely uncommon).
 
Best thing is to call LG Parts Research---I'll post on Monday evening.
 
Lots of typos going around on this particular thread :)
 
 
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: the_bigham on February 03, 2013, 11:48:33 PM
Meter shows ~116 out the outlet/wall.

what is your line voltage?
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: the_bigham on February 03, 2013, 11:54:15 PM
I referenced the wrong page on "B". It is 6871EC1061C (http://www.repairclinic.com/PartDetail/Main-Control-Board/6871EC1061C/1359806) it seems - this is from the service manual:

Hmmm.

6871EC1061C (http://www.repairclinic.com/PartDetail/Main-Control-Board/6871EC1061C/1359806) has been discontinued.

Best thing is to call LG Parts Research---I'll post on Monday evening.
 
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: john63 on February 03, 2013, 11:57:53 PM
It's still worth looking into...

A new/revised Main Board may have been introduced as a replacement---just not shown on LGs website yet (if ever).
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: john63 on February 04, 2013, 08:14:27 PM
The part number is correct (6871EC1061C (http://www.repairclinic.com/PartDetail/Main-Control-Board/6871EC1061C/1359806)) and is No Longer Available.

I'd contact fixyourboard.com (http://fixyourboard.com)

Fast turn around time.
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: bob41 on March 09, 2014, 11:42:56 AM
 I have a similar question with my LG DLG0332 (http://appliancejunk.com/forums/index.php?action=search2;search=DLG0332) dryer
the dryer will not heat, if I reset the red reset button it works fine, dry ignites and stay on ,  then the next time we go to use it I have the reset the button again .

Is the fix to just change the thermostat with the red button
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: domain on March 09, 2014, 05:00:40 PM
I have a similar question with my LG DLG0332 (http://appliancejunk.com/forums/index.php?action=search2;search=DLG0332) dryer
the dryer will not heat, if I reset the red reset button it works fine, dry ignites and stay on ,  then the next time we go to use it I have the reset the button again .

Is the fix to just change the thermostat with the red button

Theoretically, they want any reset able TCO replaced if it even opens ONCE. Sounds like venting may be an issue here. The flame may not be pulled through the burning chamber and rolling up on to the TCO, and it is doing its job. :welcome:
Title: Re: LG Tromm Gas Dryer won't Heat
Post by: imza on November 10, 2016, 07:56:05 PM
I've been having a problem with my DLG033W dryer, and this is probably the only thread on the internet I could find help on.

--Does not heat at all. No glow from the igniter.
--Don't get any voltage from the top plug on the gas assembly. Replaced main board with a used board I found on eBay, "certified working." Still don't get any voltage from the top plug, but I forgot to unplug the dryer when plugging it back in and it shocked the hell out of me.
--Igniter has continuity.
--Flame sensor has continuity.

When I first installed it, it dried fine for maybe a week, with heat. Now it has no heat. Another thing very much worth mentioning, is most of the time we start it, the dryer will buzz loudly. We have to spin the drum a bit and start it again before it will move.
I don't understand why the motor would have anything to do with heating, but I see John mentioned the centrifugal switch on the motor could be an issue.

Yes---based on your additional posts---it's clear that the gas burner is only functioning initially but not continually (intermittent).

This usually caused by the following (in most likely order):

1) Failing MAIN BOARD (6871EC1016C (http://www.repairclinic.com/Shop-For-Parts?s=t-6871EC1016C-%3d%3d)) The gas valve *relay* fails after one or two burner cycles.

2) Failing GAS VALVE ASSY (5221EL2002A (http://www.repairclinic.com/PartDetail/Gas-Valve-Assembly/5221EL2002A/1266848)) Valve 1 or Valve 2 fails after one or two burner cycles.

3) FLAME SENSOR (6501EL3001A (http://www.repairclinic.com/PartDetail/Flame-Sensor/6501EL3001A/1268234)) Erratic operation.

4) CENTRIFUGAL SWITCH on the MOTOR (4681EL1008A (http://www.repairclinic.com/PartDetail/Drive-Motor/4681EL1008A/1330330)) Erratic operation.