Author Topic: LG gas dryer flame won't stay lit.  (Read 21897 times)

Offline RegUS_PatOff

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Re: LG gas dryer flame won't stay lit.
« Reply #10 on: October 20, 2009, 02:45:06 PM »
did you do any tests in the Service Manual ?

$ 540 ? ?

this Control Board ? $ 101
click on picture


After leaving this Earth, "Do you want the smoking or non-smoking section?"

Offline MD

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Re: LG gas dryer flame won't stay lit.
« Reply #11 on: October 20, 2009, 02:57:33 PM »
I pressed and held the power button whild holding the other two buttons as described in the manual (troubleshooting sequence).  It went through the test sequence with all lights on the panel lit, and it alternated some code three times(which I believe is correct)--it was UA02 then 8:98, or something like that.  Then it displayed nE after that sequence.  I stepped through with the pause button as described, and got temps that were accuate (~20 C on both readings).  The motor and igniter did what they were supposed to.

There was about 100 VDC on valve #1 until about 10 seconds after the flame lit, then it went to 0 VDC after the igniter went off.  Valve #2 had 0 VDC until the ignition sequence began, went to 90 VDC and then went to 0 VDC when the voltage to valve #1 went to 0 VDC.

I tried the semiconductor test, and one reading said 300 ohm, and the other said 600 ohm.  They were both supposed to be 300 ohm.

The flame detector said less than one ohm before ignition, and upon flame light, it went open, as it was supposed to.

I have a "cooling" light on the panel that is always lit, and never goes out.  All of the other functions seem to operate normally. 

I would feel much better about replacing a $100 board, if that were the problem.  Where do I find that?

Thanks for your help.

Mike

Offline PARTech

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Re: LG gas dryer flame won't stay lit.
« Reply #12 on: October 22, 2009, 08:21:02 AM »
The picture is the link. :)
Serving North Idaho

Offline MD

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Re: LG gas dryer flame won't stay lit.
« Reply #13 on: October 22, 2009, 10:58:28 AM »
Thanks!  I ordered it Tuesday, and it should be here tomorrow.  I went and checked limit switches, semiconductor, and flame sensor--all checked good. 

One more symptom that showed up--now the burner doesn't light at all, and no voltage at the valves.  Igniter got hot, it didn't light the first time.  If I let it run, it tried to light a couple more times, but no gas=no flame.

I'm hoping the controller is the problem.  I don't see what else it could be.

Have a great day.

Mike

Offline CAPTFOOTLONG

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Re: LG gas dryer flame won't stay lit.
« Reply #14 on: October 24, 2009, 02:48:32 PM »
IF YOU USE FABRIC SOFTNER THAT WILL MAKE THE SENSOR TRIP!!!!!!! I SPENT ALOT OF TIME FIGURING THAT OUT.  IT TAKES ABOUT 3 LOADS TO CLEAR OUT ALL THE SOFTNER THEN IT WILL STOP TRIPPIN.


CAPPY


Offline MD

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Re: LG gas dryer flame won't stay lit.
« Reply #15 on: October 27, 2009, 04:51:10 PM »
In case anyone else follows this thread:

Dryer is now working very nicely, and mama bear is happy.  Once I had the new control board installed correctly, front panel and the door in place, and filter washed out with hot water, it lit and stayed lit.  Note, even if the filter doesn't look dirty, using fabric softener sheets over time seems to create a film that obstructs flow--hot water is cheap and easy.  I'm pretty sure the controller was bad, and I have at least one spare gas valve solenoid now.  Mission complete, and it was still less expensive than getting the repair guys out again for the quoted $520 replacement part plus labor.

RepairClinic--Thank you very much for your help.  I highly recommend RepairClinic and ApplianceJunk for your home appliance repairs.

Offline AJ

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Re: LG gas dryer flame won't stay lit.
« Reply #16 on: October 28, 2009, 05:33:42 AM »
Glad to hear you got it repaired.

Thanks for the update.
Hope you find our website helpful.

Offline tileman2010

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Re: LG gas dryer flame won't stay lit.
« Reply #17 on: December 13, 2009, 11:51:20 PM »
Congrats MD. Can you give me either the item number or the picture of the control board that you replaced.I'm having the same problem.Is it the control board or control panel.Thanks.

Offline MD

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Re: LG gas dryer flame won't stay lit.
« Reply #18 on: December 14, 2009, 12:18:40 PM »
Hi Tileman2010,

The controller board part number is 1359865 on Appliance Clinic.  If you go back to the first page of this thread, down toward the mid-bottom, there is a picture of the board.  If you click on the picture, the Appliance Clinic webpage and will pop up. 

Make sure you check out all of the info in this thread.  There was a bit of "shotgunning" here, just because I wanted it done.  You have to have the door and panels installed to get the right air flow.  And wash out your filter with hot water.

Good luck!

MD

click on picture



Offline tileman2010

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Re: LG gas dryer flame won't stay lit.
« Reply #19 on: December 14, 2009, 01:00:07 PM »
Thank you MD. I will give an update after I replace the part.


Tileman20210.

 

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